ABSTRACT
Across 117 SMSAs in the United States we have established a statistical association between the 1960 total mortality rate and sulfates and suspended particulates. We have elaborated this relationship by consideration of infant, age-sex-race-adjusted, age-sex-race-specific, and disease-specific mortality rates. The association between the two air pollutants and mortality was subjected to a number of tests, but the possibility remains that another factor, or a set of factors, was the cause of the observed association.
