Chemical symbols
CFCs chlorofluorocarbons
CH 4 methane
CO carbon monoxide
CO 2 carbon dioxide
H 2 molecular hydrogen
HCFCs hydrochlorofluorocarbons
H 2 O water
N 2 molecular nitrogen
N 2 O nitrous oxide
NO nitricoxide
NO 2 nitrogen dioxide
O 2 molecular oxygen
O 3 ozone
OH hydroxyl radical
SO 2 sulphur dioxide
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