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Air Pollution

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New Delhi: On Saturday, amid the Diwali celebrations, the firecracker ban in Delhi went up in smoke with people flouting it with impunity. According to a report published by a Delhi-based news organisation Times of India, the sound of crackers could be heard during the day and its intensity rose after 6: 00 pm and continued throughout the night at some locations. The report said that average hourly PM 2.5 concentration in Delhi touched 910…