Air Pollution and Morbidity in New York City

Abstract
The relationship of air pollution to health was studied during a period in the month of November, 1953, when air pollution in New York City reached high levels. An analysis of clinic visits was employed as an index of morbidity at 4 major city hospitals. It disclosed an increase in clinic visits for upper respiratory infections and cardiac illnesses. The increase proved to be statistically significant at 3 of the 4 hospitals for "upper respiratory" visits and 2 of the 4 hospitals for "cardiac," visits. No increase was noted in the number of visits to the asthma clinic. The evidence indicates that morbidity during this air pollution incident was significantly increased.

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