Summer Ozone Concentrations in Zagreb Area

Ozone concentrations were measured at three sites in Zagreb (Croatia) in the summer of 2005. Two measuring sites were in urban areas, while the third site was in a rural area about 30 km to the south from the centre of Zagreb. Hourly ozone averages varied between 1 μg m-3 and 209 μg m-3. Average con...

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Veröffentlicht in:Arhiv za higijenu rada i toksikologiju 2009-03, Vol.60 (1), p.35-42
Hauptverfasser: Pehnec, Gordana, Vađić, Vladimira, Bešlić, Ivan, Žužul, Silva
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Sprache:eng
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Zusammenfassung:Ozone concentrations were measured at three sites in Zagreb (Croatia) in the summer of 2005. Two measuring sites were in urban areas, while the third site was in a rural area about 30 km to the south from the centre of Zagreb. Hourly ozone averages varied between 1 μg m-3 and 209 μg m-3. Average concentrations were the lowest in the rural area, even though elevated concentrations were recorded occasionally. However, the weather conditions during measurements were untypical for that time of the year; over the summer of 2005 there were many rainy and cloudy days. Ozone concentrations at all three sites were the highest on Saturdays and Sundays, and the lowest on Thursdays. All the results were analysed with regard to the meteorological conditions (wind velocity and direction, temperature, relative humidity). Koncentracije ozona mjerene su na tri mjesta u Zagrebu tijekom ljeta 2005. godine. Dva mjerna mjesta bila su smještena u urbanom području dok se treće mjerno mjesto nalazilo u ruralnom području udaljenom oko 30 km prema jugu od centra Zagreba. Satni prosjeci masenih koncentracija ozona kretali su se između 1 μg m-3 i 209 μg m-3. Prosječne koncentracije bile su najniže u ruralnom području, premda su povremeno zabilježene i povišene vrijednosti. Međutim, vremenski uvjeti tijekom mjerenja bili su netipični za to doba godine - tijekom ljeta 2005. bilo je mnogo kišnih i oblačnih dana. Na sva tri mjerna mjesta koncentracije ozona bile su najviše subotom i nedjeljom, a najniže četvrtkom. Svi rezultati analizirani su s obzirom na meteorološke uvjete.
ISSN:0004-1254
1848-6312
0004-1254
DOI:10.2478/10004-1254-60-2009-1889