Why Science Can’t ‘Prove’ a Pesticide is Safe
Here is an article, albeit somewhat dated, that reviews why scientists can probably never definitively say that a given pesticide is safe when used as directed: http://web.ncf.ca/bf250/safe.html
And here is a jump ahead to the punchline, just in case you don’t have time to read the whole thing:
“To a real scientist, the conclusion is simple – the scientific method is, with present knowledge, inadequate to deal with the toxicity of pesticides to real people. We will need new models of toxicity before that will change. And, as long as the secrecy that pervades the pesticide industry and regulators is maintained, the required knowledge is unlikely to be developed using the scientific method.”