ABSTRACT
This chapter discusses wet deposition in the United States and Canada and provides spatial and temporal analyses. It aims to identify the locations of maximum deposition of pollutants and to determine if the spatial and temporal patterns have changed substantially during the period 1979-1987. The chapter describes the locations of maximum deposition of pollutants in the United States and Canada and aims to determine if the spatial and temporal patterns have changed substantially for the period 1979-1987. Sites are selected for temporal pattern analyses on the basis of relaxed criteria that are a compromise between ensuring that each summary is based on very complete data and increasing the number of sites available for temporal pattern analysis. The intent of the temporal pattern methodology was to determine the year-to- year characteristics of mean precipitation-weighted concentration and the deposition temporal patterns from 1979 to 1987.
