It's still worthwhile to look at 10x and 100x concentrations since these things bioaccumulate. Whatever negative effects are happening at 1x should be studied a

It's still worthwhile to look at 10x and 100x concentrations since these things bioaccumulate. Whatever negative effects are happening at 1x should be studied as we crank that concentration up. Might be fine now, but in 100 years? We should probably have an idea how the harm/effects scale