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Comment by subygan | Hacker News Reader

completely anecdotal. my earliest childhood memories in india were of asthma, sinusitis and constant cold. this was consistent until i was 26 and since then I've moved to the US and lived in New York with 0 days of sinusitis or breathing trouble. and i fallback to trouble breathing when i go home again.

even New York is so much more better than Bangalore or my small village in the middle of coffee farms

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Bangalore has historically (over decades) been known to have a high incidence of asthma due to the high pollen in the air. It's been made worse in recent years due to pollution. The pollen is present for a significant portion of the year while other pollen regions in the world tend to have it for a smaller duration.

I just made a comment about having good air quality but with summer fires we were getting smoke for weeks at a time so I got an air purifier. My kid wasn't struggling horribly but I did notice right away after putting one in his room that he slept better and his breathing seemed so much more relaxed at night and it just felt like it made a noticeable improvement to me.

During my childhood, I lived across the street from a brewery. I suffered from chronic sinusitis for years, and no one understood the cause. When I moved to a different part of town, the problem immediately stopped. The same thing happened to one of my classmates who lived in the apartments next to me.

Yes, pollution has both acute and chronic effects. What you describe here is an acute effect.

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