Citations from the scientific literature on the environmental behavior and occurrence of synthetic pyrethroid insecticides were obtained from three computerized bibliographic databases: Agricola, Chemical Abstracts, and Selected Water Resources Abstracts. Approximately 10,000 citations were found but more than half were eliminated because they were directed strictly toward agricultural or industrial uses. The remaining 4,000 were categorized by environmental process, occurrence, analysis, toxicity, or physical/chemical property. The information is available in ASCII files on 3 1/2-inch diskette.