Atmospheric nitrogen is converted to nitrogen oxides (a) when fossil fuels are burned at high combustion temperatures.
Atmospheric nitrogen is converted to nitrogen oxides
(a) when fossil fuels are burned at high combustion temperatures.
(b) if the sun is shining brightly and there is a temperature inversion.
(c) on cloudy days when carbon and soot levels are unusually high.
(d) if radon gas is present when gasoline is burned in automobiles.
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