LINKING AIR ISSUES WITH DOSE-RESPONSE AND BIOGEOCHEMICAL-CYCLE MODELS

This paper describes the roles that dose-response and biogeochemical-c ycle models play in the comparative and integrated assessment of sever al atmospheric issues. The two approaches are described briefly, as th ey are commonly used, and as they might be applied when multiple stres sors and receptors, and when interacting cycles, respectively, are inv olved. Examples are drawn from the carbon and sulfur cycles to demonst rate how knowledge of a cycle provides a useful link among various cur rent pollution issues. Possible interactions and some shortcomings of the two approaches are given, leading to suggestions for the appropria te use of the two tools for scientific analysis and policy development for the various air issues.