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ANALYSIS OF GASEOUS POLLUTANTS IN THE ATMOSPHERE OF BOTOSANI TOWN

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Author(s): Liviu Apostol | Nicoleta - Delia Vieru | Paul - Narcis Vieru

Journal: Present Environment and Sustainable Development
ISSN 1843-5971

Volume: 6;
Issue: 1;
Start page: 195;
Date: 2012;
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Keywords: pollutants | immissions | carbon monoxide | nitrogen oxides | sulphur dioxide | air quality .

ABSTRACT
Immissions of carbon monoxide (CO), sulphur dioxide (SO2) and nitrogenoxides (NOx) were measured in the central area of Botosani municipality, since January 2008 until December 2009 (Environmental Protection Agency, Mihai Eminescu Avenue, at the altitude of 160 m). The data represent hourly average of the three pollutants concentrations, the measurements being performed with the automatic station–urban background type, from the agency endowment. Thepurpose of this work is to present the air quality and the connection between concentrations and tendencies of gaseous pollutants in the climatic conditions and in anthropic activities specific in Botosani town. Yearly averages of carbon monoxide (CO), sulphur dioxide(SO2) and nitrogen oxides (NOx) for the years 2008 and 2009 were: 0.250 mg/m3 and 0.280 mg/m3; 7.26 μg/m3 and 8.29 μg/m3, respectively 37.71 μg/m3 and 30.53 μg/m3. Generally, the maximum values of the pollutantsimmissions are registered in the cold semester of the year, and the minimum values of the immissions, in the warm semester. The medium value of the ratio CO/ NOx=5,03 indicates the predominant contribution of the mobile sources in the atmosphere pollution process, and the value of the ratio SO2/NOx= 0.14 indicates the fact that the punctiform pollution sources are responsible of the pollution with SO2 in Botosani town.
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