Protein Contents of Ozone- and Air-Fumigated Pinus Strobus Needles
Ozone (O3) is normally present within the earth’s troposphere at 20–30ppb concentration. However, as a result of increased industrialization and urbanization, e.g., automobile emissions (Elstner, 1984), O3 has become an undesirable atmospheric pollutant in many densely-populated areas of the United States. However, monitoring of atmospheric O3 at the Coweeta Hydrologic Laboratory (Otto, NC) during 1988 revealed April through September fluctuations of 40–70 ppb (Figure 1), and mean hourly concentrations sometimes exceed 90 ppb. Thus, even rural areas experience elevated atmospheric O3 levels, presumably as a result of long-range transport of ozone precursors (e.g., NOx).
KeywordsTotal Protein Content Ozone Precursor Hourly Concentration Automobile Emission Eastern White
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