CONTENTS 



Page 



SUMMARY iii 



TABLES vi 



ACKNOWLEDGMENTS vii 



INTRODUCTION 1 



ENVIRONMENTAL CHEMISTRY 3 



BACKGROUND CONCENTRATIONS 8 



TOXIC AND SUBLETHAL EFFECTS 17 



General 17 



Terrestrial Invertebrates 17 



Aquatic Organisms 17 



Birds 23 



Mammals 23 



CURRENT RECOMMENDATIONS 28 



LITERATURE CITED 31 



