Northwest winds, sunshine improve Delhi air quality

Northwest winds, sunshine improve Delhi air quality



NEW DELHI: Air pollution in most parts of Delhi has fallen sharply to moderate levels and the air is much cleaner than most areas of Mumbai after strong winds from the northwest along with sunshine cleaned up the capital. 
The concentration of PM-2.5, the thin breathable particulates, which had risen to 'severe' levels has improved in eight of the 10 stations where the National Institute of Tropical Meteorology (IITM) monitors air quality in the capital. The concentration of the large PM-10 particulates is moderate across the capital region and close to 'good' in a southern locality. 
Air is much cleaner in central, southern, and western parts of the Delhi but remains 'very poor' in the city's north, particularly in regions near the Grand Truck road, a busy transit route of trucks, official data shows. Among neighbouring towns, Gurgaon also had moderately clean air although Noida in the east remained heavily polluted. 
In Mumbai, Colaba, Worli and Malad had moderate air quality, while six other stations, including Chembur and Navi Mumbai, had 'very poor' level of pollution. The city's air quality is expected to remain the same on Wednesday also. 
Delhi's air has been swept with wind from the northwest blowing at 20 km an hour. This is expected to continue, possibly intensify, for at least another day, which should further clean up Delhi's air. 
The forecast of IITM's System of Air Quality and Weather Forecasting And Research says most parts of the capital region are likely to have moderate levels of PM-2.5 on Wednesday. 
Scientists say the level of pollution is influenced by weather conditions. 

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