Design of the Clean Air Act deposition monitoring network. (Chapter 7)
The Clean Air Act Amendments (CAAA) of 1990 will have far-reaching effects on the monitoring of the deposition of atmospherically transported chemicals. The CAAA incorporate significant new regulatory requirements for emission reductions designed to reduce risks to public health and protect the natural environment. This paper presents the preliminary monitoring plan for a comprehensive network designed to provide adequate spatial coverage and reasonable temporal trend resolution for chemical deposition variables. While much of this network is regional or national in scope, it also includes a focus on increased monitoring in sensitive ecosystems areas such as high elevation sites and watersheds. The design process involved an evaluation of the uncertainty in the spatial prediction of unknown deposition levels at non-monitored sites and the ability of existing networks to detect and quantify temporal changes in precipitation sulfate. To meet the challenge posed by the CAAA, the Environmental Protection Agency (EPA) initiated the development of the Clean Air Act Status and Trends Monitoring Network (CASTNET) which is structured to provide an integrated, interagency approach to large-scale rural monitoring and assessment.
- Research Organization:
- Environmental Protection Agency, Research Triangle Park, NC (United States). Atmospheric Research and Exposure Assessment Lab.
- OSTI ID:
- 48192
- Report Number(s):
- PB-95-190492/XAB; EPA-600/A-95/035; TRN: 51171745
- Resource Relation:
- Other Information: PBD: 1995
- Country of Publication:
- United States
- Language:
- English
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