This vocabulary covering the field of environmental pollution was compiled by the staff of the Science Information Exchange, Smithsonian Institution. The view of the approach is to include an outline-classification all physical, life, and social science aspects of environmental pollution, trying to achieve a balance in the representation of each subject area, so that an equivalent depth of entry or detail is included. Emphasis in terminology is placed on subject areas receiving heavy attention in current research. Major categories for terms are environment, pollutants, sources of pollution, effects of pollution and/or pollutants, paths of pollutants, pollution management, societal involvement with pollution, future projections, and related concepts to pollution. Three hundred and ten terms appear, but this includes duplication of specific topics under more than one classification heading, as appropriate to the context of each section of the vocabulary. (BL)