Post Diwali, there’s poison in the air
25 Oct 2014 5:36 AM IST
The Respirable Suspended Particulate Matter, which directly affects our breathing, has gone up five times more than the air quality standard. ‘The 24-hours average of PM10 was recorded at 427 mg per cubic metre and PM2.5 was at 278 mpcm, almost five times higher than the set standard of 100 mpcm and 60 mpcm respectively,’ said a Delhi administration official. The pollution report prepared by Delhi Pollution Control Committee stated that after 10 pm, an upward trend was witnessed at all six air quality monitoring stations in Delhi.
Ambient Air Quality Monitoring was done for the particulate matters levels of PM10 and PM2.5 and for Gaseous Pollutants like Sulphur Dioxide, Oxides of Nitrogen ( NO, NO2 and NOx) and Carbon Monoxide. Since the last one week, PM2.5 and PM10 have shown higher values than prescribed standards and on the night of Diwali it increased tremendously.
According to real time ambient air quality data, PM2.5 was at its peak at 5.30 am and recorded 724 microgram per cubic meter (mpcm) in RK Puram.
In Punjabi Bagh, the PM2.5 was at its peak at 1 am and was recorded at 755 mpcm, while PM10 was recorded as 1,490 mpcm highest at 3.30 am.
At Mandir Marg, the particulate matter PM2.5 was at its peak at 2.30 am and recorded 984 mpcm while PM10 was recorded as 1,200 mpcm highest at 2 am. In Civil Lines the PM2.5 at 999.85 mpcm from 11 pm to 2.30 am and the PM10 was 1,000 mpcm from 9 pm to 3 am. PM2.5 was at its highest at IGI airport at 347.41 mpcm around 11.30 PM and PM10 was recorded the highest at 404.98 mpcm during the same time.
Particulate matters in the atmosphere less than 10 microns in size are classified as PM10 and particles that are less than 2.5 microns in size are PM2.5. While particles that are larger in size are filtered out in the upper layers of the respiratory track but quite larger part of PM10 particles can enter the lungs.
Last year particulate matter levels had shown an increasing trend at all the locations as compared to 2012. RSPM values ranged between 796 and 1138 g/m3as in 2013 compared to 748 and 951 g/m3g/m3 during Diwali in 2012.
Ambient Air Quality Monitoring was done for the particulate matters levels of PM10 and PM2.5 and for Gaseous Pollutants like Sulphur Dioxide, Oxides of Nitrogen ( NO, NO2 and NOx) and Carbon Monoxide. Since the last one week, PM2.5 and PM10 have shown higher values than prescribed standards and on the night of Diwali it increased tremendously.
According to real time ambient air quality data, PM2.5 was at its peak at 5.30 am and recorded 724 microgram per cubic meter (mpcm) in RK Puram.
In Punjabi Bagh, the PM2.5 was at its peak at 1 am and was recorded at 755 mpcm, while PM10 was recorded as 1,490 mpcm highest at 3.30 am.
At Mandir Marg, the particulate matter PM2.5 was at its peak at 2.30 am and recorded 984 mpcm while PM10 was recorded as 1,200 mpcm highest at 2 am. In Civil Lines the PM2.5 at 999.85 mpcm from 11 pm to 2.30 am and the PM10 was 1,000 mpcm from 9 pm to 3 am. PM2.5 was at its highest at IGI airport at 347.41 mpcm around 11.30 PM and PM10 was recorded the highest at 404.98 mpcm during the same time.
Particulate matters in the atmosphere less than 10 microns in size are classified as PM10 and particles that are less than 2.5 microns in size are PM2.5. While particles that are larger in size are filtered out in the upper layers of the respiratory track but quite larger part of PM10 particles can enter the lungs.
Last year particulate matter levels had shown an increasing trend at all the locations as compared to 2012. RSPM values ranged between 796 and 1138 g/m3as in 2013 compared to 748 and 951 g/m3g/m3 during Diwali in 2012.
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