[mdrew]

I'm not exactly sure.

My levels of PFOS was the highest, that's "Scotchgard". The house I live in has a very expensive reverse osmosis water filter on the tap so I don't think it's that.

I eat a ton of fish (like everyday) and recently read they are a significant source of PFOS exposure: https://pubmed.ncbi.nlm.nih.gov/36584847/

Some of the limitations of the test are you can't tell if this is past or ongoing exposure. Hence my desire to investigate phlebotomy.

PFOS has a half life of ~2.7 years so it could have been there for a while. Source: https://oem.bmj.com/content/75/1/46

[haskellandchill]

Oh yea fish, did you also have above average mercury?

[mdrew]

I'm not eating fish at the top of the food chain. Mostly sardines, lake trout, mackerel.