CAS Number
74-82-8
Properties
- simplest hydrocarbon
- colourless and odourless gas
Main sources
- cattle farming
- waste disposal sites (microbial degradation of organic matter in the absence of air)
Thresholds for the reporting requirement of facilities in accordance with Annex 2 PRTRO
(Ordinance on the Register relating to Pollutant Release and the Transfer of Waste and of Pollutants in Waste Water)
- Air 100,000 kg/year
- Water -
- Soil -
Impacts
- not toxic to humans and animals in normally occurring concentrations
- contributes to ozone formation in the free troposphere
- greenhouse gas (greenhouse potential 25 above that of carbon dioxide (CO2))