Monitoring Exposure of Passerines to Acephate, Dicrotophos, and Malathion Using Cholinesterase Reactivation J. D. Maul,* J. L. Farris Ecotoxicology Research Facility, Environmental Sciences Program, Post Office Box 847, Arkansas State University, State University, AR 72467, USA Received: 20 February 2004/Accepted: 30 July 2004 *Present address: Fisheries and Illinois Aquaculture Center and Department of Zoology, Southern Illinois University, Carbondale, IL 62901, USA Correspondence to: J. D. Maul Bull. Environ. Contam. Toxicol. (2004) 73:682– 689 © 2004 Springer Science+Business Media, Inc. DOI: 10.1007/s00128-004-0480-3 Bulletin of Environmental Contamination and Toxicology 682