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Article: The effects of scrubber installation at the Navajo Generating Station on particulate sulfur and visibility levels in the Grand Canyon.(TECHNICAL PAPER)
- Article from:
- Journal of the Air & Waste Management Association
- Article date:
- November 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 Air and Waste Management Association. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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ABSTRACT
Grand Canyon National Park (GCNP) is a mandatory Class I federal area that is afforded visibility protection under the Federal Clean Air Act. In this paper, we have examined the effects on visibility and particulate sulfur (Sp) at GCNP as a result of reducing sulfur dioxide (S[O.sub.2]) emissions by 90% from the Navajo Generating Station (NGS). Scrubbers were retrofitted to each of the three units at NGS during 1997, 1998, and 1999. The Interagency Monitoring of Protected Visual Environments aerosol network database affords us an opportunity to examine trends in Sp and extinction both prescrubber and postscrubber. The NGS impacts GCNP primarily during ...