A discussion of photochemical air pollution by University of North Carolina at Chapel Hill Professor Harvey Jeffries, states, “Since 1987 it has been recognized that 03 (ozone) and its precursors (mostly VOCs and NOx) are being transported between urban areas and that local controls alone are incapable of attaining NAAQS (national air quality standards) for ozone,” in making reference to a report published by the U.S. Environmental Protection Agency in 1991. This discussion is brought to ...

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