Pesticides

March 2008
What:Amphibians, How Pesticides Impact Them, and Why Humans Should Be Concerned
Who: Professor Tyrone Hayes, Professor of Integrative Biology, UC Berkeley
The Deets:
Just this week, front page news of aerial spraying of pesticides has infected the Bay Area. The question of pesticide impact has risen again. This month, we will focus on a very special pesticide, atrazine.

Atrazine is a potent endocrine disrupter that chemically castrates and feminizes exposed male amphibians. Further, atrazine exposure results in neural damage, hyperactivity, and leads to possible retarded growth and development.

Pesticides like atrazine are persistent contaminants, though more pronounced in amphibians, the effects occur in all vertebrate classes (fish, amphibians, reptiles, and mammals) examined. These observations demonstrate the critical impact that pesticides have on environmental health. Many of these mechanisms are being revealed only now in the scientific literature. Many agencies (US EPA) are ill-equipped to deal with this emergent science and translate it efficiently into health-protective policies.

Given the importance of this science and relevance to public health, there is a strong need to translate this information and provide public access to this knowledge.

The Presentation
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