In this paper ozone measurements carried out at six alpine and prealpine sites, located in the Italian region of Central Alps are shown. The stations are placed at altitudes between 800 and 1900 m a.s.l., far away from local sources of pollution. Ozone concentrations appear to be quite uniform, with summer mean values varying from 40 to 47 ppb and winter ones from 19 to 35 ppb. The number of hours exceeding the 75 and 100 ppb WHO thresholds and the AOT40 (Average Over Threshold 40 ppb of ozone) are evaluated for the growing season. The temporal variability of weekly ozone cycle at alpine stations provides useful informations to assess an emission control strategy.

Ozone assessment in the Southern part of the Alps / R. Vecchi, G. Valli. - In: ATMOSPHERIC ENVIRONMENT. - ISSN 1352-2310. - 33:1(1999), pp. 97-109.

Ozone assessment in the Southern part of the Alps

R. Vecchi
Primo
;
G. Valli
Ultimo
1999

Abstract

In this paper ozone measurements carried out at six alpine and prealpine sites, located in the Italian region of Central Alps are shown. The stations are placed at altitudes between 800 and 1900 m a.s.l., far away from local sources of pollution. Ozone concentrations appear to be quite uniform, with summer mean values varying from 40 to 47 ppb and winter ones from 19 to 35 ppb. The number of hours exceeding the 75 and 100 ppb WHO thresholds and the AOT40 (Average Over Threshold 40 ppb of ozone) are evaluated for the growing season. The temporal variability of weekly ozone cycle at alpine stations provides useful informations to assess an emission control strategy.
Alpine region; Exceedances; Hebdomadal cycle; Surface ozone
Settore FIS/07 - Fisica Applicata(Beni Culturali, Ambientali, Biol.e Medicin)
Settore FIS/06 - Fisica per il Sistema Terra e Il Mezzo Circumterrestre
1999
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2434/68129
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