Kovač-Andrić, Elvira; Šorgo, Glenda; Kezele, Nenad; Cvitaš, Tomislav; Klasinc, Leo
(2010)
Photochemical pollution indicators: an analysis of 12 European monitoring stations.
Environmental Monitoring and Assessment, 165
(1-4).
pp. 577-583.
ISSN 0167-6369
Abstract
Indicators were devised to classify air pollution monitoring sites according to the type of expected photochemical pollution. The indicators are based on measured ozone volume fractions, the most frequently monitored component of photochemical pollution, and in particular on two contributions: one due to the ratio of daily maximum-to-minimum ozone volume fractions and the other to observed peak values. The two contributions regarded as independent are logically connected by “ and” and therefore mathematically combined by multiplication. The criterion of classification is mainly described by the mentioned ratio and incidences of ozone volume fractions exceeding the limit of 80 ppb. Twelve monitoring stations within the European network (Cooperative programme for monitoring 1and evaluation of long-range transmission of air pollutants in Europe, EMEP) were classified according to this indicator predicting what ozone levels can be expected at the particular sites during the growth season (April through September) into three groups: clean, medium, and polluted, based on the data for the 7 years(1997 to 2003).
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