Environment & Ecology · Environment
Consider the following statements regarding PM2.5 pollution and secondary aerosol formation: I. Secondary particulate matter, such as ammonium sulfate, forms in the atmosphere via chemical reactions of precursor gases rather than being directly emitted. II. Ammonium sulfate formation primarily requires sulfur dioxide from fossil fuel combustion and ammonia largely from agricultural activities. III. Flue Gas Desulphurisation (FGD) systems in thermal power plants control only nitrogen oxides and have no effect on sulfate aerosol precursors. IV. High relative humidity and low ambient temperatures accelerate the conversion of gaseous pollutants into secondary particulates. How many of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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Only three
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