It is studied, it’s not fine, it’s just not newsworthy at the moment. It’s barely newsworthy around here even when it exceeds legal limits.
>> In the UK, 8.39% of deaths were due to pollution
It always seems pretty high.
https://www.standard.co.uk/news/uk/uk-has-one-of-the-worst-p...
However, I cannot remember ever seeing a front page story on the topic when walking past the newspapers in the supermarket. (Not claiming there are zero front page headlines, but “Statins Do A Thing” and “Princesses Diana XYZ” swamp any about pollution).