Fugitive emissions and refrigerants: emission factors
Fugitive releases of gas to atmosphere, whether or not a refrigerant: refrigerant leakage from cooling equipment, and unintended or vented releases from fuel extraction, processing and distribution. From 8 libraries, filed in one model so one publisher's factor compares with another's.
What the 9 factor pages say
One chart per unit, since a kilogram and a kWh do not compare. Colour is the boundary, what the factor counts; every row also names it.
Per kg · 9 factor pages
Log scale: each gridline is 10 times the last- Blends - R410BFugitive releases2,050
DESNZ · United Kingdom · 2026
- R-442A - R-32/125/134a/152a/227ea (31/31/30/3/5)Fugitive releases2,040
MITECO · Spain · 2026
- R407cFugitive releases1,910
CO2emissiefactoren.nl · Netherlands · 2026
- R-407C - R-32/125/134a (23/25/52)Fugitive releases1,910
MITECO · Spain · 2026
- HFC-236ea - CHF2CHFCF3Fugitive releases1,500
MITECO · Spain · 2026
- HFC-236cbFugitive releases1,350
ADEME · World · 2023
- Refrigerant Use - Refrigerants - Nitrous oxide (R-744a) - N₂OFugitive releases265
MfE · New Zealand · 2024
- Refrigerant Use - Hydroflurocarbons - HFC-152 - CH₂FCH₂FFugitive releases16
MfE · New Zealand · 2024
- R744 - CO2Fugitive releases1
CO2emissiefactoren.be · Belgium · 2025
Source: the published factor pages, catalogue version 591.
Who publishes these factors
8 libraries publish them. Each name opens the library's page.
IPCC (279) and ADEME (260) hold 54% of them; the other 6 publish the rest (455).
- IPCC279
- ADEME260
- DESNZ166
- MfE111
- MITECO54
- GLEC44
- CO2emissiefactoren.be41
- CO2emissiefactoren.nl39
Source: open-climate.ai catalogue, version 591, coverage summed over libraries.
Every factor page
Sorted by library. Each factor is also on its library's page.
| Activity | Library | Region | Boundary | Value | Year |
|---|---|---|---|---|---|
| HFC-236cb | ADEME | World | Fugitive releases | 1,350 kgCO₂e/kg | 2023 |
| R744 - CO2 | CO2emissiefactoren.be | Belgium | Fugitive releases | 1 kgCO₂e/kg | 2025 |
| R407c | CO2emissiefactoren.nl | Netherlands | Fugitive releases | 1,910 kgCO₂e/kg | 2026 |
| Blends - R410B | DESNZ | United Kingdom | Fugitive releases | 2,050 kgCO₂e/kg | 2026 |
| Refrigerant Use - Hydroflurocarbons - HFC-152 - CH₂FCH₂F | MfE | New Zealand | Fugitive releases | 16 kgCO₂e/kg | 2024 |
| Refrigerant Use - Refrigerants - Nitrous oxide (R-744a) - N₂O | MfE | New Zealand | Fugitive releases | 265 kgCO₂e/kg | 2024 |
| HFC-236ea - CHF2CHFCF3 | MITECO | Spain | Fugitive releases | 1,500 kgCO₂e/kg | 2026 |
| R-407C - R-32/125/134a (23/25/52) | MITECO | Spain | Fugitive releases | 1,910 kgCO₂e/kg | 2026 |
| R-442A - R-32/125/134a/152a/227ea (31/31/30/3/5) | MITECO | Spain | Fugitive releases | 2,040 kgCO₂e/kg | 2026 |
Other subcategories
- Agricultural process emissions67 factors · 2 pages
- Industrial process emissions25 factors · 1 page
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