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| Air Pollution: PM10 levels off the charts as winds raising dust sweep Delhi | | | agencies
NEW DELHI, May 16: The PM10 pollution in Delhi soared to hazardous levels on Tuesday as strong winds swept the city, raising dust and leaving a thick blanket of haze over it.
The India Meteorological Department said dust-laden winds with speeds up to 50 kmph breezed through the capital between 3 am and 6 am, lowering visibility to a mere 700 metres at 10 am at the Palam Observatory, close to the Indira Gandhi International Airport, as compared to 4,000 metres at 9 am on Monday.
By 3 pm on Tuesday, the overall air quality index had worsened to 260, from 162 at 4 pm on Monday.
The Delhi Pollution Control Committee data showed PM10 levels soaring to 3,826 micrograms per cubic metre at Jahangirpuri and 2,565 micrograms per cubic metre at Sri Aurobindo Marg. According to the Central Pollution Control Board, PM10 levels up to 100 micrograms per cubic metre (for a 24-hour period) are considered safe.
The DPCC data showed PM10 levels rose to 1,542 micrograms per cubic metre at Vivek Vihar; 1,296 micrograms per cubic metre at RK Puram; 1,807 micrograms per cubic metre at Patparganj; 1,663 micrograms per cubic metre at Narela; 1,957 micrograms per cubic metre at Alipur; 1,661 micrograms per cubic metre at Dwarka Sector 8; 1,456 micrograms per cubic metre at Mundka; 1,662 micrograms per cubic metre at Major Dhyan Chand Stadium; 1,527 micrograms per cubic metre at Wazirpur; 1,580 micrograms per cubic metre at Ashok Vihar; and 1,881 micrograms per cubic metre at Okhla Phase 2 in the morning hours.
The Commission for Air Quality Management (CAQM) said it's an "exceptional episodic event" which has led to continual dispersion of dust over the entire Delhi-NCR.
It said the PM10 concentration rose from 141 microgram per cubic metre at 4 am to 796 microgram per cubic metre at 7 am. Strong winds are likely to continue on Wednesday.
The situation is likely to improve in one to two days with rain also expected on May 18.
Satellite pictures released by the meteorological office showed a thick layer of dust covering large parts of northwest India. |
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