1. US Department of Agriculture, Agricultural Chemical Usage: Field Crops Summary. National Agicultural Statistics Service, US Department of Agriculture, 1990–1994
2. US Environmental Protection Agency, Revised environmental fate and effects assessment of atrazine, 2001. Available from
3. Benefits of triazine herbicides;Gianessi,1998
4. Ecological risk assessment of atrazine in North American surface waters;Solomon;Environ. Toxicol. Chem.,1996
5. US Environmental Protection Agency, Pesticides industry sales and usage, 1992 and 1993 market estimates, EPA-733-K-94-001, Office of Prevention, Pesticides, and Toxic Substances, Duluth, 1994