Recently released by the US Geological Survey USGS in cooperation with the US Environmental Protection Agency (EPA), this report summarizes regional and national information collected by the USGS between 1991 and 1995 for seven major-use herbicides. The report is offered in text or .pdf format and includes an abstract, a list of abbreviations and acronyms, and numerous charts and tables.

This Web site discusses current research findings surrounding the use of the weed killer, atrazine, and sex organ deformities in frogs exposed to it. The site is actual report authored by the scientists and published in the Proceedings of the National Academy of Sciences (PNAS) online journal. It can be viewed online or downloaded in Adobe Acrobat (.pdf) format for printing. The research finds...

This Web site discusses current research findings surrounding the use of the weed killer, atrazine, and sex organ deformities in frogs exposed to it. The article from the New York Times summarizes the recent research report; free registration is required to view it. This site reports focus on the potential impact of atrazine on humans, but they do raise it as an important question.