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*Fertilising arable land with human waste leaves array of toxins that could re-enter food chain, study finds.* This practice was effectively used for millennia, so I wonder whether the waste contained toxins back then or not. Perhaps it was chemically safe back then because these toxic substances had not been invented yet. Or perhaps some were present but nobody was

the Guardian
More than 520 chemicals found in English soil, including long-banned medical substances
Fertilising arable land with human waste leaves array of toxins that could re-enter food chain, study finds







