Content: Benefits of triazine herbicides / Leonard P. Gianessi -- The role of triazines in managing weeds resistant to other herbicides / H.M. LeBaron -- A simulation analysis of the use and benefits of triazine herbicides / David C. Bridges -- Costs impacts if atrazine or triazines were not available to growers / Gerald A. Carlson -- The role of best management practices in reducing triazine runoff / R.S. Fawcett -- The metabolism of atrazine and related 2-chloro-4,6-bis(alkylamino)-s-triazines in plants / Gerald L. Lamoureux, Bruce Simoneaux, and John Larson -- Atrazine hydrolysis by a bacterial enzyme / Lawrence P. Wackett, Michael J. Sadowsky, Mervyn de Souza, and Raphi T. Mandelbaum -- Genetics of atrazine degradation in Pseudomonas sp. strain ADP / M.J. Sadowsky, L.P. Wackett, M.L. de Souza, K.L. Boundy-Mills, and R.T. Mandelbaum -- Metabolism of selected (s)-triazines in animals / Jinn Wu, Robert A. Robinson, and Bruce Simoneaux -- Magnitude and nature of (s)-triazine residues in foodstuffs as predicted from radiolabeled studies on selected animals and plants / Bruce J. Simoneaux, Dennis S. Hackett, Leslie D. Bray, and Fred Thalaker -- Pesticide residues in processed foods : not a food safety concern / E.R. Elkins, R.S. Lyon, and R. Jarman -- Use of a multiresidue method for the determination of triazine herbicides and their metabolites in agricultural products / John R. Pardue and Rodney Bong -- An immunochemical approach to estimating worker exposure to atrazine / James F. Brady, JoLyn Turner, Max W. Cheung, John D. Vargo, Jennifer G. Kelly, Denise W. King, and Andrea C. Alemanni -- The assessment of worker exposure to atrazine and simazine : a tiered approach / Curt Lunchick and Frank Selman -- Atmospheric transport and deposition, an additional input pathway for atrazine to surface waters / Dorothea F. Rawn, Thor H.J. Halldorson, and Derek C.G. Muir -- Integrated chemical and biological remediation of atrazine-contaminated aqueous wastes / S.M. Arnold, W.J. Hickey, R.F. Harris, and R.E. Talaat -- Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States / E.M. Thurman, D.W. Kolpin, D.A. Goolsby, and M.T. Meyer -- Temporal and spatial trends of atrazine, desethylatrazine, and desisopropylatrazine in the Great Lakes / S.P. Schottler, S.J. Eisenreich, N.A. Hines, and G. Warren -- Summary of Ciba crop protection groundwater monitoring study for atrazine and its degradation products in the United States / K. Balu, P.W. Holden, L.C. Johnson, and M.W. Cheung -- Pesticide movement to groundwater : application of areal vulnerability assessments and well monitoring to mitigation measures / J. Troiano, C. Nordmark, T. Barry, B. Johnson, and F. Spurlock -- Exposure to the herbicides atrazine and simazine in drinking water / D.P. Tierney, J.R. Clarkson, B.R. Christensen, K.A. Golden, and N.A. Hines -- Impact of Midwest farming practices on surface and groundwater equally / J.L. Hatfield and D.B. Jaynes -- The role of groundwater surveys in regulating atrazine in Wisconsin / Gary S. LeMasters -- Herbicides in drinking water : a challenge for risk communication / David B. Baker -- Estimated ecological effects of atrazine use on surface waters / Steven D. Mercurio -- Triazines in waters of the Midwest : exposure patterns / R. Peter Richards and David B. Baker -- The aquatic ecotoxicology of triazine herbicides / Jeffrey M. Giddings and Lenwood W. Hall, Jr. -- Triazine herbicides : ecological risk assessment in surface waters / Keith R. Solomon and Mark J. Chappel -- Toxicity characteristics of the 2-chlorotriazines atrazine and simazine / J.W. Hauswirth and L.T. Wetzel -- Results of a two-year oncogenicity study in Fischer 344 rats with atrazine / Ajit K. Thakur, Lawrence T. Wetzel, Richard W. Voelker, and Amy E. Wakefield -- Role of strain-specific reproductive patterns in the appearance of mammary tumors in atrazine-treated rats / James W. Simpkins, J. Charles Eldridge, and Lawrence T. Wetzel -- Appearance of mammary tumors in atrazine-treated female rats : probable mode of action involving strain-related control of ovulation and estrous cycling / J. Charles Eldridge, Robert F. McConnell, Lawrence T. Wetzel, and Merrill O. Tisdel -- Failure of chloro-s-triazine-derived compounds to induce estrogenic responses in vivo and in vitro / K. Connor, J. Howell, S. Safe, I. Chen, H. Liu, K. Berhane, C. Sciarretta, and T. Zacharewski -- A pharmacodynamic model of atrazine effects on estrous cycle characteristics in the Sprague-Dawley rat / Melvin E. Andersen, Harvey J. Clewell, III, and Hugh A. Barton -- Probabilistic risk assessment for atrazine and simazine / Robert L. Sielken, Jr., Robert S. Bretzlaff, and Ciriaco Valdez-Flores.