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Comment by throwaway2037 | Hacker News Reader

throwaway2037

    > We’ve had a lot of PFOA/PFAS contamination and public health advise says to not eat eggs from backyard chickens

Where?

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Everywhere that is never tested. How do you know for sure you are on good soil, and that no contaminated soil was used under your house and garden, which no doubt were levelled before construction started?

This includes feed. Commercial animal foods literally contains waste, such as plastic, due to waste food recycling not being required to be unpacked.

Sure, you _can_ control these things, but more often than not, people don't. Semi commercial hobbyists don't have the money.

Purportedly the Netherlands, but the research was badly performed.

KNOWN PFAS contamination was around heavy industry, and yeah, if you live near those regions, maybe don't. Otherwise proceed with scepticism and/or some testing.

Netherlands indeed. We live downriver from known contamination in Dordrecht and around heavy industry in Rotterdam area

Fairly recent research claims that hobby (backyard) chickens tend to have higher PFAS contamination than factory farmed chickens because hobby chickens get the chance to eat (a lot of) rain worms whereas the factory farmed chickens only get commercial food, no live worms. I do agree that location is almost undoubtedly key to PFAS contamination rates.

Dutch source for the thing about rain worms: https://nos.nl/artikel/2539934-hoge-concentraties-pfas-via-r...

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