Reactive Organic Gasses
- Reactive organic gases
(ROG) undergo a series of reactions to form
radicals.
- The alkylperoxy radical
(RO2*)
reacts with and oxidizes NO to form NO2
faster than NO reacts with O3
to produce the same result.
- Thus, when ROGs are
present, it is likely that O3
will not be destroyed to produce NO2,
and the null cycle is broken.
- Note that each time an NO2
molecule is formed (by whatever method), it very
quickly results in the production of O3
(via photo dissociation and a recombination).
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 recall the null
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