In my first post in an incredibly long time, I thought I'd forward this interesting article from India.
https://theprint.in/...-makers/142746/
Of particular interest, this bit:
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As India is a very heavily populated place and fireworks are ignited in great quantity during Diwali, it's perfectly understandable they would take the initiative to try and reduce air pollution where perhaps those of us in less densely populated countries would take our air for granted.