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The incidence of water quality: A county level analysis
Author(s) -
Asch Peter,
Seneca Joseph J.
Publication year - 1980
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr016i002p00319
Subject(s) - environmental science , pollutant , distribution (mathematics) , incidence (geometry) , water quality , quality (philosophy) , population , geography , sample (material) , range (aeronautics) , statistics , demography , mathematics , ecology , biology , engineering , mathematical analysis , philosophy , geometry , epistemology , sociology , chemistry , chromatography , aerospace engineering
Relationships between nine quality characteristics of domestic water systems and the income and racial composition of the using populations are examined for a national sample of counties. Simple correlations suggest a regressive distribution for some but not all pollutants. More detailed analysis of two pollutants adjusts for variation in size of county population and shows a regressive distribution of fecal coliform but an income neutral distribution of cadminum. The findings are far from definitive but point to the type of analysis required to draw broader incidence conclusions.