Toxic air reduced by 54% in 5 cities during lockdown – Times of India
NEW DELHI: The Covid-19 lockdown reduced dangerous air pollutants in five Indian cities — Chennai, Delhi, Hyderabad, Kolkata, and Mumbai — by up to 54 per cent saving 630 people…
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NEW DELHI: The Covid-19 lockdown reduced dangerous air pollutants in five Indian cities — Chennai, Delhi, Hyderabad, Kolkata, and Mumbai — by up to 54 per cent saving 630 people…