Which of the following particulate matters (size based) are notified pollutants in National Ambient Air Quality Standards (NAAQS)?

Question

Vimal Swarnkar · Accepted Answer

(c) PM 10 and PM 2.5. NAAQS (2009) notify PM₁₀ (particles ≤ 10 µm) and PM₂.₅ (≤ 2.5 µm) along with SO₂, NO₂, O₃, CO, NH₃, Pb, benzene, benzo(a)pyrene, As and Ni — 12 pollutants in all.

Answer

(a) PM 10 and PM 3.5

Answer

(b) PM 9 and PM 2.5

Answer

(d) PM 5 and PM 3.5

Geo-Scientist Prelims 2020 General Studies Q14: Which of the following particulate matters (size based) are…

QuestionEnvironment / air quality