Air Quality Deteriorates in Delhi as Weak Winds Trap Pollutants

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New Delhi: Delhi’s air quality worsened sharply on Sunday, with the overall Air Quality Index (AQI) rising to 366 from 303 the previous day, according to data from the Central Pollution Control Board (CPCB). Several surrounding cities also recorded alarming levels, including Ghaziabad (351), Gurugram (357), Noida (348), and Greater Noida (340), while Faridabad reported a “poor” AQI of 215.

The Air Quality Early Warning System (AQEWS) attributed the deterioration to weak winds, with speeds dropping below 8 kmph from the northwest during evening and night hours, reducing the dispersion of pollutants. A ventilation index below 6,0

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