Sediment-Pollutant Relationships in Runoff from Selected Agricultural, Suburban, and Urban Watersheds. A Statistical Correlation Study

摘要

Data from agricultural, suburban, and urban watersheds were subjected to statistical correlation analysis to estimate potency factors. These factors are coefficients that, when multiplied by sediment mass emission rates (transported in runoff), provide estimates of mass emission rates for other pollutants. The potency factors are required input for such lumped-parameter runoff models as the Nonpoint Source (NPS) Model and the Storm-Water Management Model (SWMM). The data were also subjected to multiple regression analysis to examine the effect of storm parameters on runoff water quality and the interrelationship among runoff water quality constituent concentrations themselves (other than sediment load).