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2015 | 22 | 3 | 363-378
Tytuł artykułu

Concentration Changes Of PM10Under Liquid Precipitation Conditions

Treść / Zawartość
Warianty tytułu
PL
ZMIANY STĘŻENIA PM10W WARUNKACH WYSTĘPOWANIA OPADÓW CIEKŁYCH
Języki publikacji
EN
Abstrakty
EN
This study reports the results of field research into variability of the scavenging coefficient (Λ) of suspended dust comprising particles with aerodynamic diameters less than 10 mm. Registration of PM10 over 7 years in conditions of the occurrence of rainfall (convective light showers, large-scale precipitation and storms) was undertaken in an undeveloped rural area. The analysis involved 806 observations taken at constant time intervals of 0.5 hour. The measurements of the concentration of PM10 were performed by means of a reference method accompanied by concurrent registration of basic meteorological parameters. It was found that, for PM10, the scavenging efficiency is considerably influenced by rainfall intensity R and the type of precipitation. In the case of convective precipitation, data on Λ are only partially related to “classical approach” of rain scavenging. Within the range of comparable values of rainfall intensity, the type of wet deposition (except for storms) does not influence the effectiveness of scavenging PM10 from the ground-level zone. The large number of observations conducted in real-time conditions yielded a proposal of simple regression model, which can be deemed suitable for the description of variability Λ (DPM10), but only to a limited extent for large-scale precipitation. The collected results can be applied in air pollution dispersion models and deposition and were found to be generally representative for areas with similar climatic characteristics.
Wydawca

Rocznik
Tom
22
Numer
3
Strony
363-378
Opis fizyczny
Daty
wydano
2015-09-01
online
2015-10-05
Twórcy
  • Department of Thermal Engineering and Industrial Facilities, Faculty of Mechanical Engineering, Opole University of Technology, ul. S. Mikołajczyka 5, 45-271 Opole, Poland, phone +48 77 449 84 57, fax +48 77 449 99 24, t.olszowski@po.opole.pl
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_1515_eces-2015-0019
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