Sources and Types of Air Pollutants — Prelims Questions

Which of the following are considered secondary air pollutants? 1. Carbon Monoxide 2. Ground-level Ozone 3. Sulfur Dioxide 4. Peroxyacetyl Nitrates (PANs) Select the correct answer using the code given below:

Consider the following statements regarding Particulate Matter (PM) in India: 1. PM2.5 particles can penetrate deeper into the lungs than PM10 particles. 2. Agricultural stubble burning is a significant source of PM2.5, especially in North India. 3. The primary natural source of PM in arid regions is volcanic eruptions. Which of the statements given above is/are correct?

Which of the following anthropogenic activities is a significant source of both Nitrogen Oxides (NOx) and Particulate Matter (PM) in urban areas?

Consider the following pairs: Pollutant Source 1. Sulfur Dioxide (SO2) Coal-fired power plants 2. Carbon Monoxide (CO) Incomplete combustion of fuels 3. Ground-level Ozone (O3) Vehicular exhaust Which of the pairs given above is/are correctly matched?

Which of the following is NOT a natural source of air pollution?