I was watching how India was dealing with Covid early on and one observation that popped out at me was how culturally people handle the deceased. Not to be ins

I was watching how India was dealing with Covid early on and one observation that popped out at me was how culturally people handle the deceased. Not to be insensitive, but I saw a lot of outdoor burning of bodies. This produces a lot of smoke. Smoke causes inflammation in the lungs. The downstream effects of Covid can be highly exacerbated by lung inflammation. Maybe this is not the differential factor but as I understand it, India already has a serious pollution problem at least in the industrial areas. Are there parts of India where the air is free of pollution that stats are also gathered from?