Just a Tad Is Too Much: Less is worse for tadpoles exposed to chemicals

By Ben Harder, 15:50 PM April 15, 2008

The herbicide atrazine is more likely to kill developing amphibians when it is highly diluted than when it's much more concentrated in aquatic environments, a new study suggests. Although counterintuitive, the finding is consistent with some controversial past research on atrazine and studies showing that other hormonally active compounds are most damaging at trace concentrations.

Atrazine, the most commonly used weed killer in the United States, shows up across the environment. Typically app...

Source URL: https://www.sciencenews.org/article/just-tad-too-much-less-worse-tadpoles-exposed-chemicals