That is 5.8kg per 1000km!!! An article that makes such ridiculous claims can be dismissed as trash. A small car tire weighs about 7kg[1], so absolutely no tyres or brakes left after less than 10000km.
Also note the the vast majority of tyre particles are larger than 50um.
By weight, I would guess less than 1% of wear by weight was < PM10 - see graph[2] from the first paper I found that measured tyre wear[3].
Edit: I'm not saying tyre and brake particulate doesn't matter, but I am saying that link looks to be solidly in the stupid camp.
[1] https://www.oponeo.co.uk/blog/how-much-does-a-tyre-weigh
[2] https://ars.els-cdn.com/content/image/1-s2.0-S0301679X203019...
[3] https://www.sciencedirect.com/science/article/abs/pii/S03016...
https://uk-air.defra.gov.uk/assets/documents/reports/cat09/1...
And your article is only talking about local particulate pollution, let’s not forget the bigger issue of CO2
https://www.emissionsanalytics.com/news/pollution-tyre-wear-...