Atrazine has already turned male frogs into females that can even produce eggs and offspring. Read more on the frog research.
Human exposure to atrazine is linked to a number of serious health effects. A potent endocrine disrupter, atrazine interferes with hormonal activity of animals and humans at extremely low doses.
The science on atrazine's effects on the hormone system continues to grow. It alters the levels of key hormones in rats and can delay puberty. In male frogs, exposure to atrazine causes a kind of "chemical castration," causing them to develop female sex characteristics. Researchers hypothesize that atrazine singnals the conversion of testosterone to estrogen, demasculinizing the frogs.
Because atrazine disrupts hormones, it's not surprising that epidemiological studies find associations between exposure to the herbicide and reproductive effects including increased risk of miscarriage, reduced male fertility, low birth weight, increased chance of any birth defect, and higher incidence of abdominal defects.
Evidence for the carcinogenic potential of atrazine is growing — exposure has been linked to elevated risk of breast and prostate cancer. The recent President's Cancel Panel Report notes that atrazine has possible carcinogenic properties. In response to concerns, U.S. EPA is currently re-evaluating atrazine's carcinogenic potential.
Synergystic effects between atrazine and other pesticides may also render health harms more severe.
Atrazine in drinking water
Atrazine is one of the most widely used herbicides in the U.S., and is found in 94% of U.S drinking water tested by the USDA — more often than any other pesticide. An estimated 7 million people were exposed to atrazine in their drinking water between 1998 and 2003. Read entire article ...
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