Abstract
Comparison of the results obtained from great numbers of samples using several different methods of measuring both ambient sulfur dioxide and particulate matter indicated that two different concurrent standard methods of measuring a single pollutant may give significantly different average results. In some communities, a fairly good to excellent correlation appears to exist between some of the different components of atmospheric particulate matter and also between these components and SO2, so that the concentration of one type of pollutant could be rather reliably predicted by measuring another type of pollutant.