Included are the proceedings of the first Congress on Environmental Health. Topics related to air pollution include the extent of human exposure, its relation to disease, evaluating effects clinically, community control and the physician's role. Topics related to pesticides include treatment of poisonings, occurrence of poisonings, safe usage, and regulation of distribution. Radiological topics include biological effects of radiation, food contamination, radiation standards and protection guides. Topics related to water pollution include the nature of water pollution, its relation to health, control programs, and present and future problems. (PR)