Title: Screening procedure to evaluate effects of air pollution on Eastern Region wildernesses cited as Class I air quality areas.
Author: Adams, Mary Beth; Nichols, Dale S.; Federer, Anthony C.; Jensen, Keith F.; Parrott, Harry
Source: Gen. Tech. Rep. NE-151. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 33 p.
Description: The USDA Forest Service's Eastern Region manages eight wilderness areas that have been designated as Class I air quality areas by the Federal Clean Air Act. As part of this legislation, Federal land managers are required to consult with air pollution regulators on the potential impacts of proposed air pollution emissions--including phytotoxic gases and acidic materials--on the air quality-related values (AQRVs) of these wildernesses. Applications for Prevention of Significant Deterioration (PSD) permits must be reviewed and commented on by the Federal land manager. This publication provides the manager with a procedure to rapidly screen these applications to determine which should have detailed review. The screening approach is a regional modification of a national model developed by the Forest Service in 1988. In 1990, the Eastern Region, Northeastern and North Central Forest Experiment Stations, and the Northeastern Area, State and Private Forestry sponsored a workshop of scientists and land managers to obtain advice on regionalizing this screening procedure. Two loading levels for various pollutants were established. The "red line" is the loading level above which AORVs are expected to be adversely affected. The "green line" is the loading level below which no adverse impacts are expected. Within the intermediate "yellow zone" effects are uncertain. The publication describes the criteria used to establish red and green line values, the AORVs for each wilderness, and the relation between the two.
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Adams, Mary Beth; Nichols, Dale S.; Federer, Anthony C.; Jensen, Keith F.; Parrott, Harry 1991. Screening procedure to evaluate effects of air pollution on Eastern Region wildernesses cited as Class I air quality areas. Gen. Tech. Rep. NE-151. Radnor, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 33 p.
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