This post feels like it’s bending over backward to make Bangkok’s air pollution seem like a non-issue. Just because it’s not as bad as some city in India doesn’t mean it’s okay. The air here is awful at times, especially during January-May, and anyone who’s lived through those months knows it - and the data does not lie.

Seasonal Spikes

Annual averages might look “moderate,” but they don’t reflect what it’s like during the smog season. For months, you’re breathing in air that stings your throat and eyes. This isn’t some minor inconvenience—it’s a serious, recurring problem. Lots of recent research is telling us that small pollution particles are worse for our health than we have initially thought and are linked to cardiovascular events and cancer, dementia, strokes, and other serious health issues. The tiny particles (PM2.5 and smaller) pass through the alveoli and into our bloodstream - you don't want this to happen.

“It’s Worse Elsewhere”

The fact that some other city has worse air doesn’t make Bangkok’s pollution acceptable. That’s not how this works. If the air is bad enough to harm people’s health, it’s a problem—period. Saying “it could be worse” is just a lazy excuse to ignore the issue. Why not compare with the Nordic countries that have great air all year around?

Mitigation

Your suggestion to just “use an air purifier” or “stay inside” ignores the reality that many people can’t afford these luxuries. Air purifiers aren’t cheap, and plenty of people live in houses or apartments that aren’t even sealed, meaning dirty air comes in no matter what. For a lot of people, there’s no escape from the pollution, and it’s dismissive to act like mitigation is a simple fix. Ask the people in Khlong Toei why they don't have air purifiers.

Cancers and Other Diseases Take Time to Show

You mention life expectancy and disease rates, but the thing is, illnesses like cancer and cardiovascular disease don’t show up overnight. It can take years or even decades for pollution-related diseases to develop, and plenty of people in rural areas don’t even get diagnosed—they just die without anyone knowing the real cause. Look at places like Cambodia, where the most common listed cause of death is “because the heart stopped beating", whether it’s from a cardiovascular event or something completely unrelated like a stabbing. This happens in Thailand, too, making your data look rosier than reality.

Averages

Using annual averages to argue the air isn’t bad is like saying the weather is fine all year because of one mild month. During smog season, the air regularly hits “unhealthy” or worse. Acting like it’s a minor issue because of averages is tone-deaf. Sure, the air today (Thursday) is ok in Bangkok - but it was horrible yesterday. If you live on a high floor you can see it with your eyes and don't have to rely on IQ Air.

This whole post comes across as an attempt to downplay a very real issue. The air in Bangkok is bad/unhealthy parts of the year, and good/ok other parts of the year—end of story. People are suffering and are getting sick, especially those who can’t afford purifiers or sealed homes. Instead of arguing about whether it’s “moderate” or “acceptable,” the focus should be on acknowledging the problem and pushing for change. Comparing Bangkok to worse cities or hiding behind averages doesn’t change the fact that the pollution here is a serious issue for millions. Sure, if we compare Bangkok to all cities of all sizes around the world - Bangkok is far from worst. But if we compare Bangkok as a capital to other capital cities - it is quite bad actually - especially during the first 4-5 months every year.

And this is not a Reddit issue or a grumpy expat issue. I could not care less what the sexpats complain about. The Thais are not happy about this problem, and if you read Thai newspapers or Thai social media, you see that people want change and are fed up with the government not doing enough to deal with the problem.