The National Ambient Air Quality Standard (NAAQS) for PM2.5 in India (24-hour mean) is:

• A 60 μg/m³ ✓
• B 15 μg/m³
• C 25 μg/m³
• D 100 μg/m³

Explanation

India's NAAQS (revised by CPCB/MoEF) sets the 24-hour mean standard for PM2.5 at 60 μg/m³ for residential, rural, and other areas. This is higher than the WHO guideline of 15 μg/m³ (2021 update) and reflects the prevailing baseline pollution load in Indian cities. Annual mean NAAQS for PM2.5 in India is 40 μg/m³.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.