Sunday and Workday Variations in Photochemical Air Pollutants in New Jersey and New York

Science  13 Dec 1974:
Vol. 186, Issue 4168, pp. 1037-1038
DOI: 10.1126/science.186.4168.1037


Concentration distributions of air contaminants and meteorological variables in New Jersey and New York for workdays (Mondays through Fridays, omitting holidays) and Sundays are compared by means of quantile-quantile plots. The ozone distributions are slightly higher on Sundays, and the primary pollutant distributions are lower. These results raise serious questions about the validity of current concepts underlying ozone reduction in urban atmospheres.