Surface ozone comparison conducted in two rural areas in central-southern Spain
2012
Notario, Alberto | Díaz-de-Mera, Yolanda | Aranda, Alfonso | Adame, José Antonio | Parra, Alfonso | Romero, Eugenio | Parra, Jesús | Muñoz, Fernando
PURPOSE: The purpose of this work is to contribute to the understanding of the photochemical air pollution analysing the levels and temporal variations of surface ozone in two rural areas situated in central-southern Spain. METHOD: The study is based on ozone hourly data recorded during the overall period between January 2008 and November 2009. The seasonal and daily ozone cycles as well as the number of exceedances of the threshold established in the European Ozone Directive have been calculated and analysed. RESULTS: This study presents the first ozone data registered at these two rural sites in the Iberian Peninsula plateau. Ozone shows a clear seasonal variation with the lowest values in January and November. High ozone concentrations are interrelated with high radiation intensities, temperature and wind directions. The information threshold defined in the European Ozone Directives was exceeded six times, while the limit for protection of human health was exceeded more than 40 times. The limits to protect the vegetation were also exceeded. CONCLUSIONS: Porzuna (near Cabañeros National Park) presents higher ozone levels than Argamasilla during the night-time and during the daytime of the summer months. Ozone levels are lower in Argamasilla probably due to fresh emissions from the close industrial area of Puertollano. The ozone exceedances of the limits defined in the Ozone Directive point out an ozone problem in this rural region.
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