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UNIVERSITY OF BUCHAREST
FACULTY OF PHYSICS Guest
2024-11-22 2:22 |
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Conference: Bucharest University Faculty of Physics 2012 Meeting
Section: Atmosphere and Earth Science; Environment Protection
Title:
Temporal variability of atmospheric aerosols (PM 10) in Magurele during 2006 and 2007
Authors:
Florica TOANCA (1,2), Sabina STEFAN(2)
Affiliation:
(1)National Institute of R&D for Optoelectronics, PO BOX MG-5, Magurele, Bucharest, Romania
(2) University of Bucharest, Faculty of Physics, PO BOX MG-11, Magurele, Bucharest, Romania
E-mail
flori@inoe.inoe.ro
Keywords:
PM10, aerosols, mass concentration, meteorological observations
Abstract:
This paper presents the trends and variability of PM10 mass concentrations between 2006 and 2007at a suburban station in Magurele (latitude: 44.348N, longitude 26.029E) near Bucharest. Meteorological observations were used in order to highlight factors influencing PM10 variability.
The meteorological variables analyzed are: wind speed, wind direction, temperature and number of consecutive days with synoptic weather patterns that favor high PM concentrations. The study shows that PM10 concentrations slightly increase during increasing temperature periods almost throughout the temperature range and concentrations decrease when wind speed increases. It was also noticed that the frequency of higher winds direction was NE in 2006 and NNE in 2007.Seasonal averages indicate that on DJF (December; January; February) period for both years, mass concentration has a higher value than the average for the other seasons. PM10 minima were identified during April-May period and maxima on January, corresponding to sources variability. The study has shown that 25% of measurements in 2006 and about 12% in 2007 were above the European standard limit of 50 µg/m³.
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