Industrial-Process (IPPU) Emission Factors
236 emission factors held in the GreenCalculus MasterBrain, drawn from 2 named sources, each listed with its publisher and licence under Sources below. Values are read live from the data layer on every page build, so nothing here is re-typed and nothing can drift from the figures the calculators use. They span 105 units of measurement — 12 of them in tonne C per GJ feedstock — which is why the spread below is reported per unit and never blended. The count includes 12 semiconductor process gases factors, a family too small to warrant a page of its own and published nowhere else.
Where these factors are used
Concrete & Cement Embodied Emissions and Chemicals Process Emissions set out how factors in this group are applied, and Scope 1 Cement & Lime Process Calculator and Embodied Carbon — Steel & Aluminium Calculator draw on them directly. The published dataset these rows are drawn from is IPCC Industrial-Process (IPPU) Emission Factors — Complete Reference, which carries a DOI for citation.
What this group contains
| Measure | Value |
|---|---|
| Factors | 236 |
| Publishers | 2 |
| Distinct units | 105 |
| Data version | MasterBrain v2026.284 · updated 2026-11-06 |
| Unit | Factors | Lowest | Median | Highest |
|---|---|---|---|---|
| tonne C per GJ feedstock | 12 | 0.0153 | 0.02085 | 0.0305 |
| kg CF4 per tonne aluminium | 11 | 0.001 | 0.018 | 0.477 |
| tonne CO2 per tonne product | 10 | 1.3 | 2.05 | 5 |
| tonne CO2 per tonne glass melted | 10 | 0.03 | 0.195 | 0.25 |
| kg N2O per tonne 100% nitric acid | 9 | 1.5 | 7 | 14.5 |
| tonne CO2 per tonne methanol | 7 | 0.267 | 0.396 | 1.02 |
| tonne CO2 per tonne carbonate | 6 | 0.37987 | 0.427315 | 0.52197 |
| tonne CO2 per tonne NH3 | 6 | 1.666 | 1.899 | 3.273 |
| kg HFC-23 per kg HCFC-22 produced | 6 | 0.02 | 0.03 | 0.04 |
| kg C2F6 per tonne aluminium | 6 | 0.001 | 0.011 | 0.093 |
| kg N2O per tonne adipic acid | 5 | 13.4 | 49 | 300 |
| tonne CO2 per tonne ethylene | 5 | 0.95 | 1.07 | 2.29 |
| kg N2O per tonne nitric acid (100% pure) | 5 | 2 | 5 | 9 |
| tonne CO2 per tonne lime | 5 | 0.59 | 0.75 | 0.86 |
| kg C2F6 per tonne Al | 4 | 0.03 | 0.04 | 0.4 |
| kg CF4 per tonne Al | 4 | 0.4 | 0.6 | 1.6 |
| kg CH4 per tonne product | 4 | 1 | 1.05 | 1.2 |
| tonne CO2 per tonne steel | 4 | 0.08 | 1.26 | 1.72 |
| tonne CO2 per tonne Pb | 4 | 0.2 | 0.385 | 0.59 |
| dimensionless ODU fraction | 4 | 0.05 | 0.2 | 0.2 |
| tonne CO2 per tonne acrylonitrile | 3 | 0.79 | 0.83 | 1 |
| tonne CO2 per tonne carbon black | 3 | 0.78 | 2.62 | 5.25 |
| tonne CO2 per tonne VCM produced | 3 | 0.286 | 0.294 | 0.302 |
| kg CH4 per tonne ethylene | 3 | 3 | 3 | 6 |
| tonne CO2 per tonne Zn | 3 | 0.43 | 1.72 | 3.66 |
| dimensionless multiplier | 3 | 0.97 | 1.02 | 1.1 |
Figures are computed per unit and never blended: a median across different units would be arithmetically valid and physically meaningless. 79 further units in this group have fewer than 3 factors and are counted above but not described.
What has changed
Sources, citation & machine access
| Source | Publisher | Year | Licence |
|---|---|---|---|
| IPCC 2006 Guidelines Vol 3 — IPPU | IPCC | 2006 | © IPCC — personal, non-commercial use only (ipcc.ch/copyright); no redistribution grant found |
| 2019 Refinement to the 2006 IPCC Guidelines for National Greenhouse Gas Inventories (multi-volume: Vol 3 IPPU Ch 3 Chemical Industry + Ch 4 Metal Industry; Vol 4 AFOLU Ch 4 Forest Land + Ch 10 Livestock + Ch 11 N2O Soils & Lime/Urea) | IPCC | 2019 | © IPCC — personal, non-commercial use only (ipcc.ch/copyright); no redistribution grant found |
Cite the upstream publisher for the values themselves. The reference below credits this compilation and, more usefully, pins the edition you read.
GreenCalculus. (2026). Industrial-Process (IPPU) Emission Factors (MasterBrain v2026.284). Numbers Publishing Pte. Ltd. https://greencalculus.com/factors/industrial-process-emission-factors/
Cite this factor group
Values change between editions. Quoting the MasterBrain version is what lets a reader resolve the exact number you used. See the change record above for factors in this group that have moved.
For a reference manager, in BibTeX then RIS:
@misc{greencalculus_industrial_processes_2026,
author = {{GreenCalculus}},
title = {Industrial-Process (IPPU) Emission Factors},
year = {2026},
howpublished = {GreenCalculus},
publisher = {Numbers Publishing Pte. Ltd.},
note = {MasterBrain v2026.284},
url = {https://greencalculus.com/factors/industrial-process-emission-factors/}
}TY - DATA
AU - GreenCalculus
TI - Industrial-Process (IPPU) Emission Factors
PY - 2026
DB - GreenCalculus
PB - Numbers Publishing Pte. Ltd.
ET - MasterBrain v2026.284
UR - https://greencalculus.com/factors/industrial-process-emission-factors/
ER - The factors on this page come from 2 sections of the open API, one address each. No key, no signup:
https://greencalculus.com/wp-json/greencalculus/v1/factors/industrial_processeshttps://greencalculus.com/wp-json/greencalculus/v1/factors/semiconductor_gasescurl -s "https://greencalculus.com/wp-json/greencalculus/v1/factors/industrial_processes?limit=500"import requests
base = "https://greencalculus.com/wp-json/greencalculus/v1/factors/"
rows = []
for section in ["industrial_processes", "semiconductor_gases"]:
rows += requests.get(base + section, params={"limit": 500}).json()["factors"]
print(len(rows), "rows across", 2, "sections")There is no spreadsheet download for this page: all 236 rows come from IPCC_2006_VOL3, IPCC_2019_REFINEMENT, whose terms do not give us the right to pass their figures on in a file. They stay on this page, each beside its source, and in the endpoint above, where every row carries licence.redistributable. The per-publisher terms are on the sources register.
The response carries an X-GC-Version header, so a consumer can detect a new edition without diffing the payload.
All factors
| Factor | Value | Unit | Gas | Source | Last changed | Canonical key |
|---|---|---|---|---|---|---|
| Calcite / aragonite (CaCO3) — stoichiometric CO2 per carbonate | 0.43971 | tonne CO2 per tonne carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.1 | — | carbonate.calcite |
| Dolomite (CaMg(CO3)2) — stoichiometric CO2 per carbonate | 0.47732 | tonne CO2 per tonne carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.1 | — | carbonate.dolomite |
| Magnesite (MgCO3) — stoichiometric CO2 per carbonate | 0.52197 | tonne CO2 per tonne carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.1 | — | carbonate.magnesite |
| Rhodochrosite (MnCO3) — stoichiometric CO2 per carbonate | 0.38286 | tonne CO2 per tonne carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.1 | — | carbonate.rhodochrosite |
| Siderite (FeCO3) — stoichiometric CO2 per carbonate | 0.37987 | tonne CO2 per tonne carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.1 | — | carbonate.siderite |
| Sodium carbonate / soda ash (Na2CO3) — stoichiometric CO2 per carbonate | 0.41492 | tonne CO2 per tonne carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.1 | — | carbonate.sodium_carbonate |
| Acrylonitrile — CO2, acetonitrile burned for energy recovery/flared | 0.83 | tonne CO2 per tonne acrylonitrile | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.22 | — | chemicals.acrylonitrile.acetonitrile_burned_only |
| Acrylonitrile — CO2, acetonitrile + HCN recovered as product | 0.79 | tonne CO2 per tonne acrylonitrile | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.22 | — | chemicals.acrylonitrile.acetonitrile_hcn_recovered |
| Acrylonitrile — CH4 (Tier 1 default) | 0.18 | kg CH4 per tonne acrylonitrile | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 §3.9.2.2 (methane) | — | chemicals.acrylonitrile.ch4_default |
| Acrylonitrile — CO2, secondary products burned/flared (default) | 1 | tonne CO2 per tonne acrylonitrile | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.22 | — | chemicals.acrylonitrile.secondary_burned_flared |
| Adipic acid — net EF after catalytic destruction abatement | 53 | kg N2O per tonne adipic acid | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.4 + Eq 3.7 | — | chemicals.adipic_acid.catalytic_destruction |
| Adipic acid — net EF after recycle-to-feedstock abatement | 49 | kg N2O per tonne adipic acid | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.4 + Eq 3.7 | — | chemicals.adipic_acid.recycle_to_feedstock |
| Adipic acid — net EF after recycle-to-nitric-acid abatement | 22.2 | kg N2O per tonne adipic acid | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.4 + Eq 3.7 | — | chemicals.adipic_acid.recycle_to_nitric_acid |
| Adipic acid — net EF after thermal destruction abatement | 13.4 | kg N2O per tonne adipic acid | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.4 + Eq 3.7 | — | chemicals.adipic_acid.thermal_destruction |
| Adipic acid — nitric acid oxidation, uncontrolled (no abatement) | 300 | kg N2O per tonne adipic acid | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.4 | — | chemicals.adipic_acid.uncontrolled |
| Ammonia — modern autothermal reforming, natural gas | 1.694 | tonne CO2 per tonne NH3 | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.1 | — | chemicals.ammonia.autothermal_reforming_natural_gas |
| Ammonia — European average value, natural gas (mix of modern and older plants) | 2.104 | tonne CO2 per tonne NH3 | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.1 | — | chemicals.ammonia.average_natural_gas |
| Ammonia — average value, partial oxidation | 3.273 | tonne CO2 per tonne NH3 | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.1 | — | chemicals.ammonia.average_partial_oxidation |
| Ammonia — modern conventional reforming, natural gas | 1.694 | tonne CO2 per tonne NH3 | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.1 | — | chemicals.ammonia.conventional_reforming_natural_gas |
| Ammonia — modern excess air reforming, natural gas | 1.666 | tonne CO2 per tonne NH3 | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.1 | — | chemicals.ammonia.excess_air_reforming_natural_gas |
| Ammonia — modern partial oxidation | 2.772 | tonne CO2 per tonne NH3 | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.1 | — | chemicals.ammonia.partial_oxidation_modern |
| Caprolactam — Raschig process | 9 | kg N2O per tonne caprolactam | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.5 | — | chemicals.caprolactam.raschig |
| Calcium carbide production — CO2 from petroleum coke use | 1.09 | tonne CO2 per tonne calcium carbide produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.8 | — | chemicals.carbide.calcium_carbide_co2_coke |
| Calcium carbide use — CO2 from acetylene production downstream | 1.1 | tonne CO2 per tonne calcium carbide used | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.8 | — | chemicals.carbide.calcium_carbide_co2_product_use |
| Silicon carbide production — CH4 | 11.6 | kg CH4 per tonne silicon carbide produced | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.7 | — | chemicals.carbide.silicon_carbide_ch4 |
| Silicon carbide production — CO2 | 2.62 | tonne CO2 per tonne silicon carbide produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.7 | — | chemicals.carbide.silicon_carbide_co2 |
| Carbon black — CH4, no thermal treatment | 28.7 | kg CH4 per tonne carbon black | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.24 | — | chemicals.carbon_black.ch4_no_thermal_treatment |
| Carbon black — CH4, thermal treatment (default) | 0.06 | kg CH4 per tonne carbon black | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.24 | — | chemicals.carbon_black.ch4_thermal_treatment |
| Carbon black — CO2 from Acetylene Black process (total) | 0.78 | tonne CO2 per tonne carbon black | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.23 | — | chemicals.carbon_black.co2_acetylene |
| Carbon black — CO2 from Furnace Black process (default, total) | 2.62 | tonne CO2 per tonne carbon black | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.23 | — | chemicals.carbon_black.co2_furnace_default |
| Carbon black — CO2 from Thermal Black process (total) | 5.25 | tonne CO2 per tonne carbon black | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.23 | — | chemicals.carbon_black.co2_thermal |
| Acetonitrile — carbon content | 0.5852 | tonne carbon per tonne acetonitrile | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.acetonitrile |
| Acrylonitrile — carbon content | 0.6664 | tonne carbon per tonne acrylonitrile | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.acrylonitrile |
| Butadiene — carbon content | 0.888 | tonne carbon per tonne butadiene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.butadiene |
| Carbon black — carbon content | 0.97 | tonne carbon per tonne carbon black | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.carbon_black |
| Carbon black feedstock — carbon content | 0.9 | tonne carbon per tonne carbon black feedstock | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.carbon_black_feedstock |
| Ethane — carbon content | 0.856 | tonne carbon per tonne ethane | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.ethane |
| Ethylene — carbon content | 0.856 | tonne carbon per tonne ethylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.ethylene |
| Ethylene dichloride — carbon content | 0.245 | tonne carbon per tonne ethylene dichloride | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.ethylene_dichloride |
| Ethylene glycol — carbon content | 0.387 | tonne carbon per tonne ethylene glycol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.ethylene_glycol |
| Ethylene oxide — carbon content | 0.545 | tonne carbon per tonne ethylene oxide | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.ethylene_oxide |
| Hydrogen cyanide — carbon content | 0.4444 | tonne carbon per tonne hydrogen cyanide | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.hydrogen_cyanide |
| Methane — carbon content | 0.749 | tonne carbon per tonne methane | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.methane |
| Methanol — carbon content | 0.375 | tonne carbon per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.methanol |
| Propane — carbon content | 0.817 | tonne carbon per tonne propane | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.propane |
| Propylene — carbon content | 0.8563 | tonne carbon per tonne propylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.propylene |
| Vinyl chloride monomer — carbon content | 0.384 | tonne carbon per tonne VCM | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.10 | — | chemicals.carbon_content.vinyl_chloride_monomer |
| EDC/VCM — CH4 from integrated production plant | 0.0226 | kg CH4 per tonne VCM produced | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.19 | — | chemicals.edc_vcm.ch4_integrated |
| EDC/VCM — CO2 from Balanced Process (default, VCM basis) | 0.294 | tonne CO2 per tonne VCM produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.17 | — | chemicals.edc_vcm.co2_balanced_process |
| EDC/VCM — CO2 from Direct Chlorination process (VCM basis) | 0.286 | tonne CO2 per tonne VCM produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.17 | — | chemicals.edc_vcm.co2_direct_chlorination |
| EDC/VCM — CO2 from Oxychlorination process (VCM basis) | 0.302 | tonne CO2 per tonne VCM produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.17 | — | chemicals.edc_vcm.co2_oxychlorination |
| EDC/VCM — ethylene feedstock consumption, Balanced Process (VCM basis) | 0.47 | tonne ethylene per tonne VCM produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.18 | — | chemicals.edc_vcm.feedstock_consumption_balanced_vcm |
| Ethylene — CH4 from steam cracking, ethane feedstock | 6 | kg CH4 per tonne ethylene | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.16 | — | chemicals.ethylene.ch4_ethane |
| Ethylene — CH4 from steam cracking, naphtha feedstock | 3 | kg CH4 per tonne ethylene | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.16 | — | chemicals.ethylene.ch4_naphtha |
| Ethylene — CH4 from steam cracking, all other feedstocks | 3 | kg CH4 per tonne ethylene | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.16 | — | chemicals.ethylene.ch4_other_feedstock |
| Ethylene — CO2 from steam cracking, butane feedstock | 1.07 | tonne CO2 per tonne ethylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.14 | — | chemicals.ethylene.co2_butane |
| Ethylene — CO2 from steam cracking, ethane feedstock | 0.95 | tonne CO2 per tonne ethylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.14 | — | chemicals.ethylene.co2_ethane |
| Ethylene — CO2 from steam cracking, gas oil feedstock | 2.29 | tonne CO2 per tonne ethylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.14 | — | chemicals.ethylene.co2_gas_oil |
| Ethylene — CO2 from steam cracking, naphtha feedstock | 1.73 | tonne CO2 per tonne ethylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.14 | — | chemicals.ethylene.co2_naphtha |
| Ethylene — CO2 from steam cracking, propane feedstock | 1.04 | tonne CO2 per tonne ethylene | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.14 | — | chemicals.ethylene.co2_propane |
| Ethylene oxide — CH4, no thermal treatment (default) | 1.79 | kg CH4 per tonne ethylene oxide | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.21 | — | chemicals.ethylene_oxide.ch4_no_thermal_treatment |
| Ethylene oxide — CH4, thermal treatment of process vents | 0.79 | kg CH4 per tonne ethylene oxide | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.21 | — | chemicals.ethylene_oxide.ch4_thermal_treatment |
| Ethylene oxide — CO2 from Air Process (default catalyst selectivity 70%) | 0.863 | tonne CO2 per tonne ethylene oxide | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.20 | — | chemicals.ethylene_oxide.co2_air_process_default |
| Ethylene oxide — CO2 from Oxygen Process (default catalyst selectivity 75%) | 0.663 | tonne CO2 per tonne ethylene oxide | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.20 | — | chemicals.ethylene_oxide.co2_oxygen_process_default |
| HFC-23 byproduct from HCFC-22 production — global average 1978-1995 | 0.02 | kg HFC-23 per kg HCFC-22 produced | HFC-₂₃ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.28 | — | chemicals.fluorochemical.hcfc22_byproduct_hfc23_global_average |
| HFC-23 byproduct from HCFC-22 production — old, unoptimised plants | 0.04 | kg HFC-23 per kg HCFC-22 produced | HFC-₂₃ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.28 | — | chemicals.fluorochemical.hcfc22_byproduct_hfc23_old_plant |
| HFC-23 byproduct from HCFC-22 production — recent design, not optimised | 0.03 | kg HFC-23 per kg HCFC-22 produced | HFC-₂₃ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.28 | — | chemicals.fluorochemical.hcfc22_byproduct_hfc23_recent_plant |
| Glyoxal production — Tier 1 net EF (post-destruction) | 0.1 | tonne N2O per tonne glyoxal | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.6 | — | chemicals.glyoxal.default |
| Glyoxylic acid production — Tier 1 net EF (post-destruction) | 0.02 | tonne N2O per tonne glyoxylic acid | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.6 | — | chemicals.glyoxylic_acid.default |
| Methanol production — CH4 (Tier 1 default) | 2.3 | kg CH4 per tonne methanol | CH₄ | IPCC_2006_VOL3Vol 3 Ch 3 §3.9.2.2 (methane) | — | chemicals.methanol.ch4_default |
| Methanol — conventional steam reforming, no primary reformer, natural gas (default) | 0.67 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.conv_steam_reforming_no_primary |
| Methanol — conventional steam reforming with primary reformer, natural gas | 0.497 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.conv_steam_reforming_with_primary |
| Methanol — integrated with ammonia production, natural gas | 1.02 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.integrated_ammonia |
| Methanol — Lurgi Combined Steam Reforming process, natural gas | 0.396 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.lurgi_combined |
| Methanol — Lurgi Conventional process, natural gas | 0.385 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.lurgi_conventional |
| Methanol — Lurgi Low Pressure process, natural gas | 0.267 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.lurgi_low_pressure |
| Methanol — Lurgi Mega Methanol process, natural gas | 0.31 | tonne CO2 per tonne methanol | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.12 | — | chemicals.methanol.lurgi_mega |
| Nitric acid — atmospheric (low) pressure plants | 5 | kg N2O per tonne nitric acid (100% pure) | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.3 | — | chemicals.nitric_acid.atmospheric_pressure |
| Nitric acid — high pressure plants | 9 | kg N2O per tonne nitric acid (100% pure) | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.3 | — | chemicals.nitric_acid.high_pressure |
| Nitric acid — medium pressure combustion plants | 7 | kg N2O per tonne nitric acid (100% pure) | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.3 | — | chemicals.nitric_acid.medium_pressure |
| Nitric acid — plants with NSCR abatement | 2 | kg N2O per tonne nitric acid (100% pure) | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.3 | — | chemicals.nitric_acid.nscr_equipped |
| Nitric acid — plants with process-integrated or tailgas N2O destruction | 2.5 | kg N2O per tonne nitric acid (100% pure) | N₂O | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.3 | — | chemicals.nitric_acid.process_integrated_destruction |
| Natural soda ash — CO2 per tonne natural soda ash produced (output basis) | 0.138 | tonne CO2 per tonne natural soda ash produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Eq 3.14 | — | chemicals.soda_ash.natural_per_product |
| Natural soda ash — CO2 per tonne Trona consumed (input basis) | 0.097 | tonne CO2 per tonne Trona | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Eq 3.14 | — | chemicals.soda_ash.natural_per_trona |
| Titanium dioxide — rutile via chloride route | 1.34 | tonne CO2 per tonne rutile TiO2 produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.9 | — | chemicals.tio2.rutile_chloride |
| Titanium dioxide — synthetic rutile production | 1.43 | tonne CO2 per tonne synthetic rutile produced | CO₂ | IPCC_2006_VOL3Vol 3 Ch 3 Table 3.9 | — | chemicals.tio2.synthetic_rutile |
| Aluminium PFC — HSS HVAE-C2F6 Tier 1 EF, 2019 Refinement | 0.033 | kg C2F6 per tonne aluminium | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — HSS HVAE-C2F6 | — | industrial_processes_refinement.aluminium_pfc.hss.hvae_c2f6 |
| Aluminium PFC — HSS HVAE-CF4 Tier 1 EF, 2019 Refinement | 0.477 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — HSS HVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.hss.hvae_cf4 |
| Aluminium PFC — HSS LVAE-CF4 Tier 1 EF, 2019 Refinement | 0.026 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — HSS LVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.hss.lvae_cf4 |
| Aluminium PFC — PFPBL HVAE-C2F6 Tier 1 EF, 2019 Refinement | 0.001 | kg C2F6 per tonne aluminium | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBL HVAE-C2F6 | — | industrial_processes_refinement.aluminium_pfc.pfpbl.hvae_c2f6 |
| Aluminium PFC — PFPBL HVAE-CF4 Tier 1 EF, 2019 Refinement | 0.016 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBL HVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.pfpbl.hvae_cf4 |
| Aluminium PFC — PFPBL LVAE-CF4 Tier 1 EF, 2019 Refinement | 0.009 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBL LVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.pfpbl.lvae_cf4 |
| Aluminium PFC — PFPBM HVAE-C2F6 Tier 1 EF, 2019 Refinement | 0.001 | kg C2F6 per tonne aluminium | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBM HVAE-C2F6 | — | industrial_processes_refinement.aluminium_pfc.pfpbm.hvae_c2f6 |
| Aluminium PFC — PFPBM HVAE-CF4 Tier 1 EF, 2019 Refinement | 0.011 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBM HVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.pfpbm.hvae_cf4 |
| Aluminium PFC — PFPBM LVAE-CF4 Tier 1 EF, 2019 Refinement | 0.018 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBM LVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.pfpbm.lvae_cf4 |
| Aluminium PFC — PFPBMW HVAE-C2F6 Tier 1 EF, 2019 Refinement | 0.013 | kg C2F6 per tonne aluminium | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBMW HVAE-C2F6 | — | industrial_processes_refinement.aluminium_pfc.pfpbmw.hvae_c2f6 |
| Aluminium PFC — PFPBMW HVAE-CF4 Tier 1 EF, 2019 Refinement | 0.161 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — PFPBMW HVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.pfpbmw.hvae_cf4 |
| Aluminium PFC — SWPB HVAE-C2F6 Tier 1 EF, 2019 Refinement | 0.093 | kg C2F6 per tonne aluminium | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — SWPB HVAE-C2F6 | — | industrial_processes_refinement.aluminium_pfc.swpb.hvae_c2f6 |
| Aluminium PFC — SWPB HVAE-CF4 Tier 1 EF, 2019 Refinement | 0.354 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — SWPB HVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.swpb.hvae_cf4 |
| Aluminium PFC — SWPB LVAE-CF4 Tier 1 EF, 2019 Refinement | 0.01 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — SWPB LVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.swpb.lvae_cf4 |
| Aluminium PFC — VSS HVAE-C2F6 Tier 1 EF, 2019 Refinement | 0.009 | kg C2F6 per tonne aluminium | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — VSS HVAE-C2F6 | — | industrial_processes_refinement.aluminium_pfc.vss.hvae_c2f6 |
| Aluminium PFC — VSS HVAE-CF4 Tier 1 EF, 2019 Refinement | 0.159 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — VSS HVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.vss.hvae_cf4 |
| Aluminium PFC — VSS LVAE-CF4 Tier 1 EF, 2019 Refinement | 0.001 | kg CF4 per tonne aluminium | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.15 (UPDATED) — VSS LVAE-CF4 | — | industrial_processes_refinement.aluminium_pfc.vss.lvae_cf4 |
| All other fluorochemicals — Tier 1 default EF (total mass), 2019 Refinement | 0.04 | kg fluorinated GHG per kg fluorochemical produced | mixed_fluorinated_gases | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28A (NEW) + Table 3.28B composition | — | industrial_processes_refinement.fluorochemical.all_other_total_mass |
| NF3 production EF — CF4 by-product (Tier 1), 2019 Refinement | 0.01 | kg CF4 per kg NF3 produced | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28A (NEW) | — | industrial_processes_refinement.fluorochemical.nf3_cf4_byproduct |
| NF3 production EF — NF3 emission (Tier 1), 2019 Refinement | 0.02 | kg NF3 per kg NF3 produced | NF₃ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28A (NEW) | — | industrial_processes_refinement.fluorochemical.nf3_main |
| NF3 production EF — N2O by-product (Tier 1), 2019 Refinement | 0.03 | kg N2O per kg NF3 produced | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28A (NEW) | — | industrial_processes_refinement.fluorochemical.nf3_n2o_byproduct |
| SF6 production EF — Tier 1 default (O'Connell 2002), 2019 Refinement | 0.03 | kg SF6 per kg SF6 produced | SF₆ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28A (NEW) | — | industrial_processes_refinement.fluorochemical.sf6_oconnell |
| SF6 production EF — Tier 1 alternative (Suizu 1999), 2019 Refinement | 0.08 | kg SF6 per kg SF6 produced | SF₆ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28A (NEW) | — | industrial_processes_refinement.fluorochemical.sf6_suizu |
| HFC-23 emission from HCFC-22 production — global average 1978-1995, 2019 Refinement | 0.02 | kg HFC-23 per kg HCFC-22 produced | HFC-₂₃ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28 (UPDATED) | — | industrial_processes_refinement.hfc23_hcfc22.global_average |
| HFC-23 emission from HCFC-22 production — old unoptimised plants, 2019 Refinement | 0.04 | kg HFC-23 per kg HCFC-22 produced | HFC-₂₃ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28 (UPDATED) | — | industrial_processes_refinement.hfc23_hcfc22.old_unoptimised |
| HFC-23 emission from HCFC-22 production — recent design plants (not specifically optimised), 2019 Refinement | 0.03 | kg HFC-23 per kg HCFC-22 produced | HFC-₂₃ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.28 (UPDATED) | — | industrial_processes_refinement.hfc23_hcfc22.recent_design |
| Hydrogen — biosteam reforming of bioethanol (Tier 1 CCF), 2019 Refinement | 0.0217 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.biosteam_reforming_bioethanol |
| Hydrogen — gasification of black liquor (Tier 1 CCF), 2019 Refinement | 0.026 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.gasification_black_liquor |
| Hydrogen — gasification of coking coal (Tier 1 CCF), 2019 Refinement | 0.0258 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.gasification_coal_coking |
| Hydrogen — gasification of mixed waste (non-biomass fraction) (Tier 1 CCF), 2019 Refinement | 0.025 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.gasification_mixed_waste_nonbio |
| Hydrogen — gasification of mixed plastic (Tier 1 CCF), 2019 Refinement | 0.02 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.gasification_plastic |
| Hydrogen — gasification of wood sludge (Tier 1 CCF), 2019 Refinement | 0.0305 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.gasification_wood_sludge |
| Hydrogen — gasification of wood waste (Tier 1 CCF), 2019 Refinement | 0.0305 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.gasification_wood_waste |
| Hydrogen — general default (mixed-feedstock global average) (Tier 1 CCF), 2019 Refinement | 0.0183 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.general_default |
| Hydrogen — steam reforming of LPG (Tier 1 CCF), 2019 Refinement | 0.0172 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.steam_reforming_lpg |
| Hydrogen — steam reforming of methanol (Tier 1 CCF), 2019 Refinement | 0.0188 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.steam_reforming_methanol |
| Hydrogen — steam reforming of naphtha (Tier 1 CCF), 2019 Refinement | 0.02 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.steam_reforming_naphtha |
| Hydrogen — steam reforming of natural gas (Tier 1 CCF), 2019 Refinement | 0.0153 | tonne C per GJ feedstock | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.30 (NEW) | — | industrial_processes_refinement.hydrogen.steam_reforming_natural_gas |
| Nitric acid — dual L/M pressure with N2O abatement, 2019 Refinement | 1.5 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) | — | industrial_processes_refinement.nitric_acid.dual_lm_with_abatement |
| Nitric acid — dual low/medium pressure (L/M), 2019 Refinement | 7 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) + 3.3A plant types | — | industrial_processes_refinement.nitric_acid.dual_low_medium_pressure |
| Nitric acid — dual medium/high pressure (M/H), 2019 Refinement | 9 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) + 3.3A plant types | — | industrial_processes_refinement.nitric_acid.dual_medium_high_pressure |
| Nitric acid — dual M/H pressure with N2O abatement, 2019 Refinement | 2.5 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) | — | industrial_processes_refinement.nitric_acid.dual_mh_with_abatement |
| Nitric acid — old (pre-1975) plants (all processes), 2019 Refinement | 14.5 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) | — | industrial_processes_refinement.nitric_acid.old_pre_1975 |
| Nitric acid — single high pressure plants (H/H), 2019 Refinement | 9 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) + 3.3A plant types | — | industrial_processes_refinement.nitric_acid.single_high_pressure |
| Nitric acid — single low pressure plants (L/L), 2019 Refinement | 5 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) + 3.3A plant types | — | industrial_processes_refinement.nitric_acid.single_low_pressure |
| Nitric acid — single medium pressure plants (M/M), 2019 Refinement | 8 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) + 3.3A plant types | — | industrial_processes_refinement.nitric_acid.single_medium_pressure |
| Nitric acid — single pressure plants with N2O abatement, 2019 Refinement | 2.5 | kg N2O per tonne 100% nitric acid | N₂O | IPCC_2019_REFINEMENTVol 3 Ch 3 Table 3.3 (UPDATED) | — | industrial_processes_refinement.nitric_acid.single_pressure_with_abatement |
| Rare earth metal production — CO2 from anode consumption (Tier 1), 2019 Refinement (NEW) | 0.56 | tonne CO2 per tonne RE metal | CO₂ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.26 (NEW) | — | industrial_processes_refinement.rare_earths.metal_co2 |
| Rare earth — Other rare earth metals/alloys C2F6 Tier 1 EF, 2019 Refinement (NEW) | 5.2 | g C2F6 per tonne RE metal | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.28 (NEW) | — | industrial_processes_refinement.rare_earths.other_re.c2f6 |
| Rare earth — Other rare earth metals/alloys C3F8 Tier 1 EF, 2019 Refinement (NEW) | 0.21 | g C3F8 per tonne RE metal | C₃F₈ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.28 (NEW) | — | industrial_processes_refinement.rare_earths.other_re.c3f8 |
| Rare earth — Other rare earth metals/alloys CF4 Tier 1 EF, 2019 Refinement (NEW) | 35.8 | g CF4 per tonne RE metal | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.28 (NEW) | — | industrial_processes_refinement.rare_earths.other_re.cf4 |
| Rare earth — Rare-earth-iron C2F6 Tier 1 EF, 2019 Refinement (NEW) | 14.6 | g C2F6 per tonne RE metal | C₂F₆ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.28 (NEW) | — | industrial_processes_refinement.rare_earths.refe_alloy.c2f6 |
| Rare earth — Rare-earth-iron C3F8 Tier 1 EF, 2019 Refinement (NEW) | 0.05 | g C3F8 per tonne RE metal | C₃F₈ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.28 (NEW) | — | industrial_processes_refinement.rare_earths.refe_alloy.c3f8 |
| Rare earth — Rare-earth-iron CF4 Tier 1 EF, 2019 Refinement (NEW) | 146.1 | g CF4 per tonne RE metal | CF₄ | IPCC_2019_REFINEMENTVol 3 Ch 4 Table 4.28 (NEW) | — | industrial_processes_refinement.rare_earths.refe_alloy.cf4 |
| Primary aluminium — CO2 (Prebake cells) | 1.6 | tonne CO2 per tonne Al | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.10 | — | metals.aluminium.co2_prebake |
| Primary aluminium — CO2 (Søderberg cells) | 1.7 | tonne CO2 per tonne Al | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.10 | — | metals.aluminium.co2_soderberg |
| Primary aluminium PFC — C2F6 (CWPB) | 0.04 | kg C2F6 per tonne Al | C₂F₆ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_c2f6_cwpb |
| Primary aluminium PFC — C2F6 (HSS) | 0.03 | kg C2F6 per tonne Al | C₂F₆ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_c2f6_hss |
| Primary aluminium PFC — C2F6 (SWPB) | 0.4 | kg C2F6 per tonne Al | C₂F₆ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_c2f6_swpb |
| Primary aluminium PFC — C2F6 (VSS) | 0.04 | kg C2F6 per tonne Al | C₂F₆ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_c2f6_vss |
| Primary aluminium PFC — CF4 (CWPB) | 0.4 | kg CF4 per tonne Al | CF₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_cf4_cwpb |
| Primary aluminium PFC — CF4 (HSS) | 0.4 | kg CF4 per tonne Al | CF₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_cf4_hss |
| Primary aluminium PFC — CF4 (SWPB) | 1.6 | kg CF4 per tonne Al | CF₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_cf4_swpb |
| Primary aluminium PFC — CF4 (VSS) | 0.8 | kg CF4 per tonne Al | CF₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.15 | — | metals.aluminium.pfc_cf4_vss |
| Ferrosilicon 65% Si — CH4 | 1 | kg CH4 per tonne product | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.7 | — | metals.ferroalloys.ch4_fesi_65 |
| Ferrosilicon 75% Si — CH4 | 1 | kg CH4 per tonne product | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.7 | — | metals.ferroalloys.ch4_fesi_75 |
| Ferrosilicon 90% Si — CH4 | 1.1 | kg CH4 per tonne product | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.7 | — | metals.ferroalloys.ch4_fesi_90 |
| Silicon metal — CH4 | 1.2 | kg CH4 per tonne product | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.7 | — | metals.ferroalloys.ch4_si_metal |
| Ferrochromium — CO2 (without sinter plant) | 1.3 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.fecr_no_sinter |
| Ferrochromium — CO2 (with sinter plant) | 1.6 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.fecr_with_sinter |
| Ferromanganese (1% C) — CO2 | 1.5 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.femn_1c |
| Ferromanganese (7% C) — CO2 | 1.3 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.femn_7c |
| Ferrosilicon 45% Si — CO2 | 2.5 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.fesi_45 |
| Ferrosilicon 65% Si — CO2 | 3.6 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.fesi_65 |
| Ferrosilicon 75% Si — CO2 | 4 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.fesi_75 |
| Ferrosilicon 90% Si — CO2 | 4.8 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.fesi_90 |
| Silicon metal — CO2 | 5 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.si_metal |
| Silicomanganese — CO2 | 1.4 | tonne CO2 per tonne product | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.5 | — | metals.ferroalloys.simn |
| Blast furnace iron production — CO2 | 1.35 | tonne CO2 per tonne pig iron | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.blast_furnace_pig_iron |
| Basic oxygen furnace steel — CO2 | 1.46 | tonne CO2 per tonne steel | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.bof |
| Coke production — CH4 | 0.1 | g CH4 per tonne coke | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.2 | — | metals.iron_steel.ch4_coke |
| Direct reduced iron production — CH4 | 1 | kg CH4 per TJ | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.2 | — | metals.iron_steel.ch4_dri |
| Sinter production — CH4 | 0.07 | kg CH4 per tonne sinter | CH₄ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.2 | — | metals.iron_steel.ch4_sinter |
| Coke oven production — CO2 | 0.56 | tonne CO2 per tonne coke | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.coke_oven |
| Direct reduced iron production — CO2 | 0.7 | tonne CO2 per tonne DRI | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.dri |
| Electric arc furnace steel — CO2 | 0.08 | tonne CO2 per tonne steel | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.eaf |
| Global average steel (65% BOF / 30% EAF / 5% OHF) — CO2 | 1.06 | tonne CO2 per tonne steel | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.global_average_steel |
| Open hearth furnace steel — CO2 | 1.72 | tonne CO2 per tonne steel | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.ohf |
| Iron ore pellet production — CO2 | 0.03 | tonne CO2 per tonne pellet | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.pellet |
| Sinter production — CO2 | 0.2 | tonne CO2 per tonne sinter | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.1 | — | metals.iron_steel.sinter |
| Lead production — CO2 (weighted default) | 0.52 | tonne CO2 per tonne Pb | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.21 | — | metals.lead.co2_default_weighted |
| Lead production — CO2 (direct smelting) | 0.25 | tonne CO2 per tonne Pb | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.21 | — | metals.lead.co2_direct_smelting |
| Lead production — CO2 (Imperial Smelting Furnace) | 0.59 | tonne CO2 per tonne Pb | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.21 | — | metals.lead.co2_isf |
| Lead production — CO2 (secondary / recycled) | 0.2 | tonne CO2 per tonne Pb | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.21 | — | metals.lead.co2_secondary |
| Primary magnesium — CO2 (from dolomite) | 5.13 | tonne CO2 per tonne Mg | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.19 | — | metals.magnesium.co2_from_dolomite |
| Primary magnesium — CO2 (from magnesite) | 2.83 | tonne CO2 per tonne Mg | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.19 | — | metals.magnesium.co2_from_magnesite |
| Magnesium casting — SF6 cover gas | 1 | kg SF6 per tonne Mg cast | SF₆ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.20 | — | metals.magnesium.sf6_casting |
| Zinc production — CO2 (weighted default) | 1.72 | tonne CO2 per tonne Zn | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.24 | — | metals.zinc.co2_default_weighted |
| Zinc production — CO2 (Imperial Smelting Furnace) | 0.43 | tonne CO2 per tonne Zn | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.24 | — | metals.zinc.co2_imperial_smelt |
| Zinc production — CO2 (Waelz Kiln) | 3.66 | tonne CO2 per tonne Zn | CO₂ | IPCC_2006_VOL3Vol 3 Ch 4 Table 4.24 | — | metals.zinc.co2_waelz_kiln |
| Other process uses of carbonates — Tier 1 default limestone/dolomite blend | 0.44535 | tonne CO2 per tonne carbonate (85/15 blend) | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Eq 2.14 | — | minerals.carbonate_other.tier1_blend_default |
| Cement clinker — default CaO content fraction | 0.65 | tonne CaO per tonne clinker | CaO | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.2.1.2 | — | minerals.cement.cao_default_fraction |
| Cement kiln dust (CKD) — default correction factor | 1.02 | dimensionless multiplier | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.2.1.2 | — | minerals.cement.ckd_correction_default |
| Cement clinker — Tier 1 default emission factor (CKD-corrected) | 0.52 | tonne CO2 per tonne clinker | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Eq 2.4 | — | minerals.cement.clinker_default |
| Cement clinker fraction — Masonry cement default | 0.64 | tonne clinker per tonne cement | clinker | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.2 | — | minerals.cement.clinker_fraction_masonry |
| Cement clinker fraction — Portland cement default | 0.95 | tonne clinker per tonne cement | clinker | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.2 | — | minerals.cement.clinker_fraction_portland_default |
| Cement clinker — base emission factor (uncorrected for CKD) | 0.51 | tonne CO2 per tonne clinker | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Eq 2.4 | — | minerals.cement.clinker_pre_ckd |
| Cement clinker — MgO carbonate-source correction (per 1% MgO) | 0.011 | tonne CO2 per tonne clinker per 1% MgO from carbonate | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.2.1.2 | — | minerals.cement.mgo_per_pct_correction |
| Ceramics — default carbonate content of clay | 0.1 | tonne carbonate per tonne clay | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.5.1.3 | — | minerals.ceramics.clay_carbonate_content_default |
| Ceramics — default clay-loss multiplier (Tier 1) | 1.1 | dimensionless multiplier | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.5.1.3 | — | minerals.ceramics.clay_loss_factor_default |
| Glass production — Container (Amber/Green) (Tier 2) | 0.21 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.container_amber_green |
| Glass production — Container (Flint) (Tier 2) | 0.21 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.container_flint |
| Glass production — Tier 1 default cullet ratio | 0.5 | fraction (cullet mass / total furnace charge) | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.4.1.3 | — | minerals.glass.cullet_ratio_tier1_default |
| Glass production — Fiberglass (E-glass) (Tier 2) | 0.19 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.fiberglass_e |
| Glass production — Fiberglass (Insulation) (Tier 2) | 0.25 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.fiberglass_insulation |
| Glass production — Float glass (Tier 2) | 0.21 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.float |
| Glass production — Specialty (Lab/Pharma) (Tier 2) | 0.03 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.specialty_lab_pharma |
| Glass production — Specialty (Lighting) (Tier 2) | 0.2 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.specialty_lighting |
| Glass production — Specialty (Tableware) (Tier 2) | 0.1 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.specialty_tableware |
| Glass production — Specialty (TV Funnel) (Tier 2) | 0.13 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.specialty_tv_funnel |
| Glass production — Specialty (TV Panel) (Tier 2) | 0.18 | tonne CO2 per tonne glass melted | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.6 | — | minerals.glass.specialty_tv_panel |
| Glass production — Tier 1 default emission factor | 0.2 | tonne CO2 per tonne glass | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Eq 2.13 | — | minerals.glass.tier1_default |
| Lime production — Tier 1 composite default (85% high-calcium + 15% dolomitic) | 0.75 | tonne CO2 per tonne lime | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Eq 2.8 | — | minerals.lime.composite_default |
| Lime production — Dolomitic lime (developed-country technology) | 0.86 | tonne CO2 per tonne lime | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.4 | — | minerals.lime.dolomitic_developed |
| Lime production — Dolomitic lime (developing-country technology) | 0.77 | tonne CO2 per tonne lime | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.4 | — | minerals.lime.dolomitic_developing |
| Lime production — High-calcium lime (Tier 1) | 0.75 | tonne CO2 per tonne lime | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.4 | — | minerals.lime.high_calcium |
| Lime production — hydrated lime correction factor (default) | 0.97 | dimensionless multiplier | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Section 2.3.1.3 | — | minerals.lime.hydrated_correction_default |
| Lime production — Hydraulic lime (Tier 1) | 0.59 | tonne CO2 per tonne lime | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.4 | — | minerals.lime.hydraulic |
| Lime — stoichiometric ratio CO2 per CaO | 0.785 | tonne CO2 per tonne CaO | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.4 | — | minerals.lime.sr_cao |
| Lime — stoichiometric ratio CO2 per CaO·MgO | 0.913 | tonne CO2 per tonne CaO·MgO | CO₂ | IPCC_2006_VOL3Vol 3 Ch 2 Table 2.4 | — | minerals.lime.sr_cao_mgo |
| Lubricants — default mass fraction of grease in total lubricants | 0.1 | dimensionless mass fraction | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Table 5.2 | — | non_energy_products.lubricants.fraction_grease_default |
| Lubricants — default mass fraction of lubricating oil in total lubricants | 0.9 | dimensionless mass fraction | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Table 5.2 | — | non_energy_products.lubricants.fraction_lubricating_oil_default |
| Lubricants — IPCC default ODU factor for total lubricants | 0.2 | dimensionless ODU fraction | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Table 5.2 / Eq 5.3 | — | non_energy_products.lubricants.odu_default_total |
| Lubricants — ODU factor for grease | 0.05 | dimensionless ODU fraction | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Table 5.2 | — | non_energy_products.lubricants.odu_grease |
| Lubricants — ODU factor for lubricating oil (motor / industrial) | 0.2 | dimensionless ODU fraction | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Table 5.2 | — | non_energy_products.lubricants.odu_lubricating_oil |
| Paraffin wax — default carbon content | 20 | kg C per GJ (Lower Heating Value basis) | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Section 5.3.2.2 | — | non_energy_products.paraffin_wax.carbon_content_default |
| Paraffin wax — default combustion emission factor (full oxidation) | 73.3 | kg CO2 per GJ (NCV basis) | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Section 5.3.2.2 (citing API 2004) | — | non_energy_products.paraffin_wax.combustion_ef_default |
| Paraffin wax — IPCC default ODU factor | 0.2 | dimensionless ODU fraction | CO₂ | IPCC_2006_VOL3Vol 3 Ch 5 Section 5.3.2.2 | — | non_energy_products.paraffin_wax.odu_default |
| Factor | Value | Unit | Gas | Source | Last changed | Canonical key |
|---|---|---|---|---|---|---|
| Electronics heat transfer fluids — aggregate FC (C6F14 proxy, Tier 1) | 0.3 | kg C6F14-equivalent per m2 silicon | C₆F₁₄ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | heat_transfer_fluids.tier1.c6f14_proxy |
| PV-cell manufacturing — C2F6 (Tier 1) | 0.2 | g C2F6 per m2 silicon | C₂F₆ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | pv_cells.tier1.c2f6 |
| PV-cell manufacturing — CF4 (Tier 1) | 5 | g CF4 per m2 silicon | CF₄ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | pv_cells.tier1.cf4 |
| Semiconductor manufacturing — C2F6 (Tier 1) | 1 | kg C2F6 per m2 silicon | C₂F₆ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | semiconductors.tier1.c2f6 |
| Semiconductor manufacturing — C3F8 (Tier 1) | 0.05 | kg C3F8 per m2 silicon | C₃F₈ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | semiconductors.tier1.c3f8 |
| Semiconductor manufacturing — CF4 (Tier 1) | 0.9 | kg CF4 per m2 silicon | CF₄ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | semiconductors.tier1.cf4 |
| Semiconductor manufacturing — CHF3 (Tier 1) | 0.04 | kg CHF3 per m2 silicon | CHF₃ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | semiconductors.tier1.chf3 |
| Semiconductor manufacturing — NF3 (Tier 1) | 0.04 | kg NF3 per m2 silicon | NF₃ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | semiconductors.tier1.nf3 |
| Semiconductor manufacturing — SF6 (Tier 1) | 0.2 | kg SF6 per m2 silicon | SF₆ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | semiconductors.tier1.sf6 |
| TFT-FPD manufacturing — CF4 (Tier 1) | 0.5 | g CF4 per m2 glass | CF₄ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | tft_fpd.tier1.cf4 |
| TFT-FPD manufacturing — NF3 (Tier 1) | 0.9 | g NF3 per m2 glass | NF₃ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | tft_fpd.tier1.nf3 |
| TFT-FPD manufacturing — SF6 (Tier 1) | 4 | g SF6 per m2 glass | SF₆ | IPCC_2006_VOL3Vol 3 Ch 6 Table 6.2 | — | tft_fpd.tier1.sf6 |
Last changed names the data-layer edition in which a factor last took a new value, reconstructed from every released edition since v2025.13. A dash means the value has not moved since tracking began, which is the answer to "is the figure I used last year still current?".
Common questions
236 factors. They are read live from the GreenCalculus data layer on every page build rather than re-typed, so the figures here are the same ones the calculators use. They come from 2 named sources, each listed with its publisher and licence in the Sources section above.
Not without checking the unit first. This group spans 105 different units of measurement, the most common being tonne C per GJ feedstock. A factor is only meaningful against the activity data its unit describes, which is why the spread on this page is reported per unit and never blended into a single average.
None of the 236 factors here has changed value since tracking began. The Last-changed column shows a dash against every row for that reason. Change history is reconstructed from every released edition of the data layer, so a revaluation would appear there.
Every row has its own link. Click the canonical key in the last column and the address bar will hold an anchor for that one factor, so a citation resolves to the number itself rather than to a table someone has to search. Quote the data-layer edition alongside it (currently v2026.284) — values change between editions, and the version is what lets a reader resolve the exact figure you used.
Yes. This group is readable from 2 open endpoints, one for each section of the data it draws on, with no key and no signup: https://greencalculus.com/wp-json/greencalculus/v1/factors/industrial_processes and https://greencalculus.com/wp-json/greencalculus/v1/factors/semiconductor_gases. Responses carry an X-GC-Version header so a consumer can detect a new edition without diffing the payload. Cite the upstream publisher for the values themselves.
Yes — these rows are drawn from IPCC Industrial-Process (IPPU) Emission Factors — Complete Reference, which is deposited with a DOI. Cite the dataset when you are referencing the collection; use the per-row link above when you are referencing a single figure.