Environment & Ecology · Secondary Air Pollutants
Ground-level tropospheric ozone (O3) is formed through photochemical reactions involving which combination of precursor pollutants in the presence of sunlight?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Methane (CH4) and particulate matter (PM2.5)
- 2Carbon dioxide (CO2) and water vapor
- 3Nitrogen oxides (NOx) and Volatile Organic Compounds (VOCs)✓
- 4Sulphur dioxide (SO2) and carbon monoxide (CO)
Correct answer
Nitrogen oxides (NOx) and Volatile Organic Compounds (VOCs)
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