Occupational and Environmental Health 2026 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

Which pollutants are formed by photochemical reactions involving hydrocarbons and oxides of nitrogen?

Oxidant pollutants, primarily ozone

Explanation Pollutants formed by photochemical reactions involving hydrocarbons and oxides of nitrogen are primarily ozone, known as oxidant pollutants. As such, options B, C, and D are incorrect because they do not pertain to the formation of these specific pollutants. Option B references primary acidic aerosols, which are not formed through photochemical reactions. Option C mentions natural gas emissions, which can contribute to air pollution but are not directly formed through photochemical reactions. Option D mentions water vapor clouds, which are not pollutants formed by photochemical reactions. Therefore, option A is the only correct choice.

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Primary acidic aerosols

Natural gas emissions

Water vapor clouds

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