quiz 1 reading material ESC202 MS 2024.PDF

Annexure – 2: National Ambient Air Quality Standard Revised National Ambient Air Quality Standards (NAAQS) [NAAQS Notification dated 18th November, 2009]...

Annexure – 2: National Ambient Air Quality Standard Revised National Ambient Air Quality Standards (NAAQS) [NAAQS Notification dated 18th November, 2009] Concentration in Ambient Air Pollutants Industrial, Ecologically Methods of Measurement S. Time Residential, Sensitive Area No. Weighted Rural and (notified by Average other Areas Central Government) 1 Sulphur Dioxide Annual* 50 20 1. Improved West and Gaeke (SO2), µg/m3 24 Hours** 80 80 2. Ultraviolet Fluorescence 2 Nitrogen Dioxide Annual* 40 30 1. Modified Jacob & Hochheiser (NO2 ), µg/m3 24 Hours** 80 80 2. Chemiluminescence 3 Particulate Matter Annual* 60 60 1. Gravimetric (Size