Question raised in Lok Sabha on Pollutants in Air, 26/07/2016
Question raised in Lok Sabha on Pollutants in Air, 26/07/2016. The total Suspended Particulate Matter (SPM) in ambient air is comprised of PM10 (particulate matter less than 10 micron), PM2.5 (particulate matter less than 2.5 micron) and PM1 (particulate matter less than 1 micron). The least visible particulate matter i.e. PM1 is significantly smaller than PM2.5 is not monitored by Central Pollution Control Board (CPCB) as the same is not regulated. CPCB is in the process of planning to undertake monitoring of PM1 initially with certain locations in Delhi and other major cities of the country and for this purpose CPCB is studying all aspects of Monitoring of PM 1 including technology and international monitoring protocols.