Q. With reference to the National Ambient Air Quality Standards (NAAQS) in India, consider the following statements:
1.They are established by the Central Pollution Control Board (CPCB) under the Air (Prevention and Control of Pollution) Act.
2.PM₂.₅ and PM₁₀ are among the pollutants covered under NAAQS.
3.The National Air Monitoring Programme (NAMP) monitors only sulphur dioxide, nitrogen dioxide, and carbon monoxide levels.
How many of the statements given above are correct?
Answer: B
Notes:
Explanation:
- The CPCB is empowered under the Air (Prevention and Control of Pollution) Act to set air quality standards, including NAAQS.
- NAAQS covers particulate matter with a size less than 2.5 microns (PM₂.₅) and less than 10 microns (PM₁₀), along with other pollutants like SO₂, NO₂, CO, lead, arsenic, etc.
- The NAMP monitors a range of pollutants, including SO₂, NO₂, SPM, RSPM, and more — not just SO₂, NO₂, and CO.
Source: Environment (N.C.E.R.T)

