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WSP04279
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Last modified
1/26/2010 12:54:40 PM
Creation date
10/12/2006 12:15:24 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8220.101.09
Description
Glen Canyon Dam/Lake Powell
State
AZ
Basin
Colorado Mainstem
Date
7/12/1993
Author
GC Vis. Trans. Comm.
Title
Western Vistas - Vol.1 No.3
Water Supply Pro - Doc Type
Publication
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<br />will pursue other fund raising options for both the <br />Commission and the P.AC.'s work. <br /> <br />The P.A. C. is continuing its review of the <br />Commission's Intemall/'ld external communication <br />plans. This review will insure that the plans meet <br />the Commission's need for openness and credibility. <br />The PAC. continues to examine technical aspects <br />of visibility science as well, including the proposed <br />'decivieW" measurement of haze described in this <br />issue. <br /> <br />I Publications Available <br /> <br />In the course of its work, the Grand Canyon Visibility <br />Transport CommiSSion will produce numerouS <br />documents. At present, these documents help <br />guide the Commission's work (e.g. bylaws, work <br />plan, and communications plans). Now, the work of <br />formulating, refining, and modelling visibility <br />management options has begun. Documents <br />involved in this process help clarify the <br />Commission's operation, options and concerns, as <br />wen as opportunities for involvement. John Leary, <br />the Project Manager, will provide interested persons <br />with copies of Commission documents (see page 4 <br />for the address). <br /> <br />Visibility Management: What's being Done <br />Now? <br /> <br />The Grand Canyon Visibility Transport <br />Commission's goal is to protect and improve <br />visibility in the Golden Circle of national parks and <br />wilderness areas. The Commission's 1995 <br />recommendations to the Administrator of the EPA <br />will be a product designed to assure reasonable <br />progress toward this goal. <br /> <br />Today, steps are 'already being taken throughout <br />the West to protect visibility. Some actions have <br />other goals, with visibility protection as a beneficial <br />by-product. Other measures are taken specifically <br />to protect visibility (such as the Navajo Generating <br />Station rule discussed in this issue). <br /> <br />Some actions reduce existing pollution. Installation <br />of scrubbers to remove sulfur diollide from industrial <br />stacks is a good example. Sulfur dioxide itself is a <br /> <br />corrosive gas. In the atmosphere sulfur dioxide is <br />transformed into other compounds, such as sulfuric <br />acid (a major component of 'acid rain'), or sulfate <br />particles (a major component Of haze in the Golden <br />Circle). Many copper smeUers use sulfur dioxide <br />removed from the waste stream to manufacture <br />sulfuric acid, which is then used in many industrial <br />processes. Modern scrubbers can remove over <br />90% of the sulfur dioxide gas in industrial exhaust. <br />reducing the adverse heaUh and visibility impacts of <br />these emissions. <br /> <br />~ <br />~ <br />~, <br />~ <br /> <br />~; <br />> <br />~ <br />i~ <br /> <br />~y <br /> <br />:.' <br /> <br />~r~ <br />" <br /> <br />Prevention is a fast-growing realm of pollution <br />control. A good example of prevention is 'demand- <br />side management.' Oemand-side management is a <br />modern application of the old axiom 'Waste not, <br />want nor. Many electric utilities have found it <br />cheaper to help their custome~ install energy- <br />efficient equipment than it is to generate more <br />electricity that is needed to operate older, less <br />efficient equipment. For example, consider compact <br />fluorescent lamps. While they produce the same <br />amount of light as old-style incandescent light <br />bulbs, they do so with 75% less electricity. The <br />consumer gets the same amount of light, and the <br />power savings allow tl'1e utility to burn less fossil fuel <br />and even eliminate the need to construct some new <br />power plants. Emissions of health and visibility <br />impairing pollutants are reduced or prevented. <br />Indeed, many projections show demand-side <br />management offsetting the need for increased <br />electricity production through the turn of the century <br />or beyond. <br /> <br />r <br />'" <br /> <br />.~, <br />t~ <br />:.t <br />"'",. <br />~ <br />~ <br />if.. <br /> <br />~. <br />:"'; <br /> <br />",'- <br />','" <br /> <br />:.:' <br /> <br />...,~ <br />~~j <br />~'". <br /> <br /> <br />Individual choices can also help protect visibility and <br />other air quality reiated values. A study by the <br />National Research Council estimated that 30% of <br />the haze particles in tl'1e Southwest come from gas <br />and diesel powered vehicles. Another 15% are <br />particles of 'fugitive dusr, much of that blown off <br />roadways by vehicles. And, 10% of the haze <br />particles come from petroleum and chemical <br />industries, including gasoline refineries. With so <br />much haze produced directly and indirectly by <br />transportation, personal transportation choices have <br />a major impact on air quality. <br /> <br />;,~:. <br />"'I <br />~I <br />:~~ <br /> <br />.,~-. <br /> <br />One individual, acting alone, may not have a <br />noticeable effect on air quality. But the cumulative <br />impact of many individuals has created the human- <br />caused hazes in the Goiden Circle. Now, acting <br />
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