Relationship of biomarkers of exposure to risk assessment and risk management / Curtis C. Dary, James J. Quackenboss, Charles H. Nauman, and Stephen C. Hern -- Proposed use of human exposure biomarkers in environmental legislation : Toxic Substances Control Act / Larry L. Needham -- The use of reference range concentrations in environmental health investigations / Robert H. Hill, Jr., Susan L. Head, Sam Baker, Carol Rubin, Emilio Esteban, Sandra L. Bailey, Dana B. Shealy, and Larry L. Needham -- Possible biomarkers for assessing health risks in susceptible individuals exposed to agrochemicals with emphasis on developing countries / Abdel Khalek H. El-Sebae, Zaher A. Mohamed, Fawzia Abdel Rahman, and Alaa Kamel -- Blood cholinesterase activity : inhibition as an indicator of adverse effect / S. Padilla, L. Lassiter, K. Crofton, and V.C. Moser -- Neurotoxic esterase inhibition : predictor of potential for organophosphorus-induced delayed neuropathy / Marion Ehrich -- Increased urinary excretion of xanthurenic acid as a biomarker of exposure to organophosphorus insecticides / Josef Seifert -- Serum protein profile : a possible biomarker for exposure to insecticides / Mahmoud Abbas Saleh, Mohamed Abou Zeid, Zaher A. Mohamed, and Fawzia Abdel Rahman -- Breast milk as a biomarker for monitoring human exposure to environmental pollutants / Mahmoud Abbas Saleh, Abdel Moneim Afify, Awad Ragab, Gamal El-Baroty, Alaa Kamel, and Abdel Khalek H. El-Sebae -- Carnitine and its esters as potential biomarkers of environmental-toxicological exposure to nongenotoxic tumorigens / John E. Garst -- L-carnitine as a detoxicant of nonmetabolizable acyl coenzyme A / L.L. Bieber, Z.H. Huang, and D.A. Gage -- The use of human 101L cells as a biomarker, P450 RGS, for assessing the potential risk of environmental samples / Jack W. Anderson, Kristen Bothner, David Edelman, Steven Vincent, Tien P. Vu, and Robert H. Tukey -- Field application of fluorescence-based catalytic assays for measuring cytochrome P450 induction in birds / J.A. Davis, D.M. Fry, and B.W. Wilson -- Initial results for the inductively coupled plasma-mass spectrometric determination of trace elements in organs of striped bass from Lake Mead, U.S.A. / Vernon Hodge, Klaus Stetzenbach, and Kevin Johannesson -- Aquatic toxicity of chemical agent simulants as determined by quantitative structure-activity relationships and acute bioassays / N.A. Chester, G.R. Famini, M.V. Haley, C.W. Kurnas, P.A. Sterling, and L.Y. Wilson -- Use of a multiple pathway and multiroute physiologically based pharmacokinetic model for predicting organophosphorus pesticide toxicity / James B. Knaak, Mohammed A. Al-Bayati, Otto G. Raabe, and Jerry N. Blancato -- Use of spot urine sample results in physiologically based pharmacokinetic modeling of absorbed malathion doses in humans / Michael H. Dong, John H. Ross, Thomas Thongsinthusak, and Robert I. Krieger -- Symbolic solutions of small linear physiologically based pharmacokinetic models useful in risk assessment and experimental design / Robert N. Brown -- Comparison of symbolic, numerical area under the concentration curves of small linear physiologically based pharmacokinetic models / Blaine L. Hagstrom, Robert N. Brown, and Jerry N. Blancato.