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The contribution of the paint industry to air pollution has been a matter of some concern for many years. Objectionable odors and, occasionally, emissions at a toxic level from the evaporation of solvents and from the high-temperature processing of oils and resins have infrequently given rise to complaints. These “nuisance” typesof pollution are a continuing problem but, in general, can be dealt with by dilution and dispersion of the objectionable materials to bring the concentration below a level that can be detected by the neighboring citizenry. Fortunately, most of the materials used by the paint industry are not toxic at concentrations significantly below the range at which they can be detected by the human nose, and sophisticated analytical procedures are rarely needed to deal with these “nuisance” problems.