Pesticide approvals misleading – and Roundup most toxic of 9 pesticides tested

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Pesticide evaluations dishonest and misleading, new study shows

GMWatch, 31 January 2014

•Pesticide formulations as sold and used are up to 1000 times more toxic than the isolated substance that is tested and evaluated for safety

•Roundup the most toxic of herbicides and insecticides tested

•Flawed safety evaluations put public health at risk

Does the fact that a pesticide is approved by regulators mean it is safe? A new study suggests not – and casts into question the assumptions on which all regulatory authorizations of pesticides are based.

Pesticides are authorized for use based on medium- or long-term tests on laboratory animals. These are carried out with a single chemical ingredient, which is known as the active ingredient because it is assumed to be responsible for giving the pesticide its pest- or weedkilling action.

However, the complete pesticide formulations as sold and used also contain additives (adjuvants), which increase the pest- or weedkilling activity of the pesticide. These complete formulations do not have to be tested in medium- and long-term tests – even though they are the substances to which farmers and citizens are exposed.

Read More  Pesticide approvals misleading – and Roundup most toxic of 9 pesticides tested.