A Cooperative Extension-Based System of Detecting and Evaluating Air Pollution Damage to Vegetation

摘要

A statewide survey of vegetation damage caused by air pollution was initiated to determine the impact of the problem in Pennsylvania. The body of information presented in this paper is directed to those individuals concerned with economic assessment of vegetation damage. Extension Service personnel, nursery inspectors, and service foresters were enlisted to provide the specialized manpower needed for complete coverage of the State. A 3-day short course was held to acquaint participants with sources of air pollution, dispersion, diagnosis, recognition of symptoms, and methods of assessing damage. Illustrated lectures were presented by authorities on the specific topics. A handbook containing several color illustrations of typical damage and guidelines in diagnosing injury was prepared and distributed to all participants. A reporting form was printed on a self-addressed, postage-paid post card and several copies were provided to each participant.