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Environmental information systems
List of Source Sub-Sectors (Snap Level 2) with Percentage of European Total Emission
| SNAP | Source sub-sectors | SO 2 | NO X | NM-VOC | CH 4 | CO | CO 2 | N 2 O | NH 3 | |
| level 1 | level 2 | |||||||||
| 1 | 1 | PUBLIC POWER AND COGENERATION PLANTS | 51% | 20% | 26% | 5% | ||||
| 2 | DISTRICT HEATING PLANTS | 3% | 2% | |||||||
| 2 | 0 | COMMERCIAL, INSTITUTIONAL AND RESIDENTIAL COMBUSTION PLANTS | 11% | 4% | 5% | 14% | 18% | 2% | ||
| 3 | 1 | INDUS. COMBUS. IN BOILERS, GAS TURBINES AND STATION. ENGINES | 19% | 8% | 2% | 16% | ||||
| 2 | INDUSTRIAL COMBUSTION - PROCESS FURNACES WITHOUT CONTACT | 2% | 2% | 3% | ||||||
| 3 | INDUSTRIAL COMBUSTION - PROCESSES WITH CONTACT | 4% | 5% | 8% | 5% | |||||
| 4 | 1 | PRODUCTION PROCESSES - PETROLEUM INDUSTRIES | 1% | |||||||
| 2 | PRODUCTION PROC. - IRON AND STEEL INDUSTRIES AND COLLIERIES | 4% | ||||||||
| 3 | PRODUCTION PROC. - NON FERROUS METAL INDUSTRY | |||||||||
| 4 | PRODUCTION PROC. - INORGANIC CHEMICAL INDUSTRY | 1% | 6% | 3% | ||||||
| 5 | PRODUCTION PROC. - ORGANIC CHEMICAL INDUSTRY | 12% | ||||||||
| 6 | PRODUCTION PROC. - WOOD,PAPER PULP,FOOD,DRINK & OTHER IND. | 2% | ||||||||
| 7 | PRODUCTION PROC. - COOLING PLANTS | |||||||||
| 5 | 1 | EXTRACTION AND 1ST TREATMENT OF SOLID FUELS | 17% | |||||||
| 2 | EXTRACTION, 1ST TREATMENT AND LOADING OF LIQUID FUELS | |||||||||
| 3 | EXTRACTION, 1ST TREATMENT AND LOADING OF GASEOUS FUELS | |||||||||
| 4 | LIQUID FUEL DISTRIBUTION (except gasoline) | |||||||||
| 5 | GASOLINE DISTRIBUTION | 3% | ||||||||
| 6 | GAS DISTRIBUTION NETWORKS | 6% | ||||||||
| 6 | 1 | SOLVENT USE - PAINT APPLICATION | 9% | |||||||
| 2 | SOLVENT USE - DEGREASING AND DRY CLEANING | |||||||||
| 3 | SOLVENT USE - CHEMICALS PRODUCTS MANUFACTURING OR PROCESSING | 3% | ||||||||
| 4 | SOLVENT USE - OTHER USE OF SOLVENTS AND RELATED ACTIVITIES | 8% | ||||||||
| 7 | 1 | ROAD TRANSPORT - PASSENGER CARS | 23% | 16% | 45% | 8% | ||||
| 2 | ROAD TRANSPORT - LIGHT DUTY VEHICLES < 3,5 t | 3% | 5% | |||||||
| 3 | ROAD TRANSPORT - HEAVY DUTY VEHICLES > 3,5 t AND BUSES | 1% | 18% | 3% | 4% | 4% | ||||
| 4 | ROAD TRANSPORT - MOPEDS AND MOTORCYCLES < 50 CM 3 | |||||||||
| 5 | ROAD TRANSPORT - MOTORCYCLES > 50 CM 3 | |||||||||
| 6 | ROAD TRANSPORT - GASOLINE EVAPORATION FROM VEHICLES | 7% | ||||||||
| 8 | 1 | OTHER MOB. SOURCES - OFF ROAD VEHICLES AND MACHINES | 6% | 2% | ||||||
| 2 | OTHER MOB. SOURCES - RAILWAYS | |||||||||
| 3 | OTHER MOB. SOURCES - INLAND WATERWAYS | |||||||||
| 4 | OTHER MOB. SOURCES - MARINE ACTIVITIES | 1% | 4% | |||||||
| 5 | OTHER MOB. SOURCES - AIRPORTS (LTO cycles and ground act.) | |||||||||
| 9 | 1 | WASTE TREATMENT AND DISPOSAL - WASTE WATER TREATMENT | ||||||||
| 2 | WASTE TREATMENT AND DISPOSAL - WASTE INCINERATION | |||||||||
| 3 | WASTE TREATMENT AND DISPOSAL - SLUDGE SPREADING | |||||||||
| 4 | WASTE TREATMENT AND DISPOSAL - LAND FILLING | 17% | 1% | |||||||
| 5 | WASTE TREATMENT AND DISPOSAL - COMPOST PRODUCTION FROM WASTE | |||||||||
| 6 | WASTE TREATMENT AND DISPOSAL - BIOGAS PRODUCTION | |||||||||
| 7 | OPEN BURNING OF AGRICULTURAL WASTES | 6% | ||||||||
| 8 | WASTE TREATMENT AND DISPOSAL - LATRINES | 1% | ||||||||
| 10 | 1 | AGRICULTURE - CULTURES WITH FERTILIZERS except animal manure | 2% | 34% | 19% | |||||
| 2 | AGRICULTURE - CULTURES WITHOUT FERTILIZERS | 4% | ||||||||
| 3 | AGRICULTURE - STUBBLE BURNING | |||||||||
| 4 | AGRICULTURE - ANIMAL BREEDING (enteric fermentation) | 21% | 1% | |||||||
| 5 | AGRICULTURE - ANIMAL BREEDING (excretions) | 9% | 73% | |||||||
| 11 | 1 | NATURE - DECIDUOUS FORESTS | 2% | 4% | 0% | |||||
| 2 | NATURE - CONIFEROUS FORESTS | 11% | 3% | 10% | 0% | |||||
| 3 | NATURE - FOREST FIRES | |||||||||
| 4 | NATURE - NATURAL GRASSLAND | 3% | ||||||||
| 5 | NATURE - HUMID ZONES | 6% | ||||||||
| 6 | NATURE - WATERS | 11% | 11% | |||||||
| 7 | NATURE - ANIMALS | 4% | 0% | |||||||
| 8 | NATURE - VOLCANOES | 2% | ||||||||
| 9 | NATURE - NEAR SURFACE DEPOSITS | |||||||||
| 10 | NATURE - HUMANS | 1% | ||||||||
| Percentage contribution of top ten sub-sectors to the European total | 95% | 92% | 72% | 94% | 91% | 89% | 92% | 99% | ||
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