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Even people who do not have asthma can experience respiratory symptoms when pollution levels are high. In some cases, repeated or prolonged exposure may also affect lung function and increase the risk of respiratory and other health problems.
The ranking was led by Bulandshahr, followed by Aligarh and Faridkot, as AQI readings crossed 600 in all 10 cities.
There is no single recovery time for everyone. It depends on how much pollution a person was exposed to and whether the exposure was brief or repeated.
The national capital's AQI was above 600, significantly higher than the readings recorded in Mumbai, Kolkata, Chennai, Hyderabad and Bengaluru.
Worse than Delhi, Loni is the world's most polluted city. Beyond Diwali, illegal kilns, dust, and toxic waste make every breath a daily battle.
Opinion | Delhi Has Every Pollution Control Policy - Except One That Works
Monday November 09, 2026Every November, Delhi performs the same ritual. We check the AQI before stepping outdoors, children are kept indoors, masks reappear, schools consider shutting, construction is restricted, and emergency meetings are convened. Politicians blame the weather, neighbouring states, farmers, or firecrackers. And then, as the season changes, the urgency d...
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Monday October 19, 2026The clearest sign that Delhi is on a path to cleaner air would be a decline in the amount of paddy grown nearby, and therefore the acreage liable to be burned each year.

