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On Photochemical Air Pollution Potential in Southern California Derived from Ozone Data from 16 Monitoring Stations

Matasović, Brunislav; Cvitaš, Tomislav; Klasinc, Leo (2012) On Photochemical Air Pollution Potential in Southern California Derived from Ozone Data from 16 Monitoring Stations. Croatica Chemica Acta, 85 (1). pp. 71-76. ISSN 0011-1643

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Average hourly ozone volume fractions from ten automatic monitoring stations in the Los Angeles and six in the Riverside area for the April through September season in the years 2000 to 2005 have been analysed on the basis of recently introduced photochemical pollution (PP) indicators. Although considerably high indicator values were found for almost all the stations, surprisingly, some (e.g. Palm Springs) exhibit low daily maximum-to-minimum ratios of hourly ozone values which is crucial for assessment of a low PP by the given indicator method, despite the overall high ozone concentrations recorded. At such stations, in contrast to elsewhere, a characteristic quasi normal distribution of all ozone hourly volume fractions exists which could be a consequence of poor vegetation or some special meteorological conditions there. Compared with a similar assessment in central Europe and the Mediterranean region, the present analysis shows that PP problems in California are significant.

Item Type: Article
Uncontrolled Keywords: photochemical pollution; pollution indicators; ambient ozone; average hourly ozone data; ozone precursors; growth season; sites; UK
Subjects: NATURAL SCIENCES > Chemistry
Divisions: Division of Physical Chemistry
Project titleProject leaderProject codeProject type
Mjerenje i djelovanje atmosferskih oksidansa[21130] Leo Klasinc098-0982915-2947MZOS
Površinski aktivne tvari, procesi u otopinama i na međupovršinama[231293] Maja Dutour Sikirić098-0982915-2949MZOS
Depositing User: Leo Klasinc
Date Deposited: 14 Oct 2013 12:22
DOI: 10.5562/cca2008

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