Low Dose Exposure and the Naysayers
BPA plastic bottles

That sounds like the name of a rock band, I know, but the headline actually refers to an important scientific struggle over the health effects of exposures to even relatively small amounts of dangerous chemicals.

BPA (found in plastics). Dioxin (highly toxic byproduct of various industrial processes). Atrazine (a widely used herbicide).

Dangerous chemicals, right? One would think that it would be easy and obvious to associate these well-known chemicals with harmful consequences to human health and also to wildlife. When there is a well-funded, highly motivated lobby resisting the weight of scientific findings, then that lobby can create a scientific debate.

Who could possibly be interested in resisting that highly toxic chemicals, even at lower doses, can have adverse health effects? Why, the chemical industry, of course.

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