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World population growth has prompted the exploration and habitation of geographical regions previously considered undesirable or unsuitable for human comfort. The impact of humans and their civilization on desert regions, where water and vegetation are scarce, is not well understood. The high plains desert of the southwestern United States is the fastest(More)
From 1969 through 1978 an extensive ambient air quality monitoring program, including the measurement of atmospheric concentrations of ozone, has been conducted in a remote section of the desert in the southwestern U.S. Using a Monitor Labs chemiluminescent ozone instrument, these levels were measured atop a small mountain 500 feet above the valley floor of(More)
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