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Pergamon .4mmsphm Enr~wonmenrVol. 28. No. IO. pp. 1781~1790. 1994 Copyright c 1994 Elsewcr Sncna Ltd
 

Summary: Pergamon .4mmsphm Enr~wonmenrVol. 28. No. IO. pp. 1781~1790. 1994
Copyright c 1994 Elsewcr Sncna Ltd
Prmcd m Great Brimin. All nghlr reserved
1X.2-2310/94 S7.lN+O.O0
1352-2310(94)EOOl3-A
TRENDS, SEASONAL VARIATIONS, AND ANALYSIS OF
HIGH-ELEVATION SURFACE NITRIC ACID, OZONE, AND
HYDROGEN PEROXIDE
VINEY P. ANEJA, CANDB S. CLAIBORN,* ZHENG LI and ANURADHAMURTHY
Department of Marine. Earth and Atmospheric Sciences, North Carolina State University.
Raleigh. NC 27695-8208. U.S.A.
(Firsr rereiwd 6 Ju/y 1993 and in jinol jorm 11 Notlemher 1993)
Abstract-Atmospheric photochemical oxidants nitric acid, ozone, and hydrogen peroxide were monitored
in ambient air at Mt Mitchell State Park, North Carolina. Ozone measurements made from May to
September during 1986-1990 are reported for two high-elevation sites (Site I on Mt Gibbs, approximately
2006 m; and Site 2 on Commissary Ridge, approximately 1760 m). These measurements are also compared
to those from a nearby, low-elevation site (Fairview, approximately 830 m). Average ozone concentrations
increased from lower to higher elevations. Meteorological analysis shows an association between periods of
high ozone concentrations and synoptic-scale patterns. No discernible diurnal cycle in the ozone concen-
trations was observed at Site 2; however, a reversed diurnal cycle (nighttime maximum) was evident at

  

Source: Aneja, Viney P. - Department of Marine, Earth and Atmospheric Sciences, North Carolina State University

 

Collections: Environmental Sciences and Ecology; Geosciences