A Programmable Exposure System for Kinetic Dose-Response Studies With Air Pollutants

Abstract

A programmable system for exposing plants to sulfur dioxide under controlled and reproducible concentration regimes is described. Because the system is capable of reproducing rapid changes in pollutant concentrations that occur in the field, it should provide more realistic information on dose-response relations than can be derived from conventional studies under steady state conditions. Although designed for investigating plant response to sulfur dioxide, the system should be readily adaptable to studies involving other test organisms as well as both individual and combined doses of other pollutants.