Papers presented at an American Chemical Society symposium in the Division of Environmental Chemistry, held Aug. 22-24, 1999 during the 218th annual meeting in New Orleans, Louisiana. Includes bibliographical references and index.

The problem and perversity of perchlorate / James H. Espenson -- The chemistry of perchloric acid and perchlorate salts: realizing the benefits / John R. Long -- Toxicology of perchlorate / James J.J. Clark -- Regulating perchlorate in drinking water / Frederick W. Pontius, Paul Damian, and Andrew D. Eaton -- Recent developments in the analysis of perchlorate using ion chromatography / Peter E. Jackson, Swati Gokhale, and Jeff S. Rohrer -- Analysis of trace level perchlorate in drinking water and ground water by electrospray mass spectrometry / Rebecca A. Clewell [and others] -- Perchlorate analysis with the AS16 separation column / David T. Tsui [and others] -- Sensitivity and selectivity enhancement in perchlorate anion quantitation using complexation-electrospray ionization-mass spectrometry / Edward T. Urbansky and Matthew L. Magnuson -- Reduction of perchlorate ion by titanous ions in ethanolic solution / Joseph E. Earley Sr., Daniel C. Tofan, and Giulio A. Amadei -- Investigation of perchlorate removal in drinking water sources by chemical methods / Mirat D. Gurol and Kyehee Kim -- Modeling the formation of ion pairs in ion exchange resins and effects on perchlorate treatment chemistry / Gerald A. Guter -- The treatability of perchlorate in groundwater using ion-exchange technology / Anthony R. Tripp and Dennis A. Clifford -- The removal of perchlorate from waters using ion-exchange resins / Jacimaria R. Batista, Frank X. McGarvey, and Adriano R. Vieira. Removal and destruction of perchlorate and other anions from ground water using the ISEP+ system / K. Ramon Venkatesh [and others] -- The design of selective resins for the removal of pertechnetate and perchlorate from groundwater / Gilbert M. Brown [and others] -- Efficient treatment of perchlorate (CIOb4s- )-contaminated groundwater with bifunctional anion exchange resins / Baohua Gu [and others] -- Long-term release of perchlorate as a potential source of groundwater contamination / Tracey C. Flowers and James R. Hunt -- Evaluation of biological reactors to degrade perchlorate to levels suitable for drinking water / Bruce E. Logan -- An autotrophic system for the bioremediation of perchlorate from groundwater / Tara L. Giblin, David C. Herman, and William T. Frankenberger Jr. -- Risk assessment of perchlorate in biota, soil, and groundwater at agricultural site in southern California / Heriberto Robles -- Influences on phytoremediation of perchlorate-contaminated water / Valentine A. Nzengung and Chuhua Wang -- In situ bioremediation of perchlorate in groundwater / Evan E. Cox, Elizabeth Edwards, and Scott Neville -- Treatment of groundwater containing perchlorate using biological fluidized bed reactors with GAC or sand media / Mark R. Greene and Michael P. Pitre -- The diverse microbiology of (per)chlorate reduction / John D. Coates [and others] -- Isolation and characterization of two novel per(chlorate)-reducing bacteria from swine waste lagoons / Urania Michaelidou, Laurie A. Achenbach, and John D. Coates.