Stumbled on this article while doing a bit of research on PFAS testing labs in the US.
https://www.barrons.com/articles/forever-chemicals-pfas-aecom-montrose-republic-services-xylem-stock-0eafef73
Not sure why the US does not have any lab testing like ALS and SGS (Swiss firm), but they have all these technology firms that sell lab testing equipment to them.
Anyway it is a large market in the US, but then the US has nearly zero tolerance on forever chemicals compared to Australia.
Seems the stricter regulations is benefiting the US players more than anyone else.
Also there is mention of a private listed company Aclarity that has a technology that uses low energy electricity to break down the chemicals
I do hold Xylem in my Moomoo papertrade account