کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4424970 1619210 2012 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Investigating a high ozone episode in a rural mountain site
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم محیط زیست شیمی زیست محیطی
پیش نمایش صفحه اول مقاله
Investigating a high ozone episode in a rural mountain site
چکیده انگلیسی

A very high ozone episode with observed hourly values above 350 μg m−3 occurred in July 2005 at the Lamas d’Olo air quality monitoring station, located in a mountainous area in the north of Portugal. Aiming to identify the origin and formation of this ozone-rich episode, a statistical analysis and a modelling approach were applied. A cross-spectrum analysis in the frequency domain and a synoptic analysis of the meteorological and air quality time series were performed. In order to go further in this analysis, a numerical modelling approach was applied. The results indicate that the transport of ozone and its precursors is the main responsible for the high ozone concentrations. Together with the local mountain breeze and subsidence conditions, the sea-breeze circulation transporting pollutants from the coastal urban and industrialized areas that reach the site during late afternoon turn out to be the driving forces for the ozone peaks.


► A very high ozone episode occurred in a rural mountain site of Portugal in 2004.
► Data cross-spectrum analysis in the frequency domain was performed.
► A numerical modelling approach was also applied.
► The sea-breeze circulation transported pollutants from the urban and industrialized coast.
► The mountain breeze and subsidence conditions were also driving forces for ozone peaks.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Pollution - Volume 162, March 2012, Pages 176–189
نویسندگان
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