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An analysis of studies on sulfate and nitrate mass concentration data in comparison with visibility and meteorological observations at airports in Los Angeles, St. Louis, New York, and New Haven supports the contention that prevailing airport visibility observation in the absence of local pollutant sources, precipitation, or fog is strongly associated with local atmospheric sulfate mass concentration. Airport visibility observations may be used to estimate atmospheric sulfate concentrations in the present and in the past. (HLW)
Leaderer et al. (Thu,) studied this question.