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AP® Environmental Science

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Moderate

Photochemical Smog Composition

APES-EXSOLY

Which of the following is NOT a secondary pollutant and a known component of photochemical smog?

A

PANs (peroxyacyl​ nitrates).

B

Nitrogen oxides.

C

Tropospheric​ ozone.

D

Carbon monoxide.

E

Particulates.