摘要

This paper presents a study of the levels of PM2.5 and PM10 in 6 locations affected by different local emissions in the province of Castello (Spain). Province of Castello is situated in the Western Mediterranean Basin. The aim of this study was to assess the influence of natural and anthropogenic emission sources on PM2.5 and PM 10 levels at these sampling sites. The PM2.5 levels obtained ranged between 9 and 19 mu g/m(3), while PM10 values ranged between 15 and 37 mu g/m(3). The recorded concentrations were generally lower than those detected in other areas of the Mediterranean Basin. In addition, the annual and weekly variations in concentration levels were also evaluated. The annual concentration profiles of PM2.5 and PM10 varied according to location. The weekly variation in the levels of both pollutants showed a decrease on non-working days that was associated with anthropogenic sources. PM2.5/PM10 ratios were calculated to assess the contribution of fine and coarse particles at each location. The values obtained for this ratio ranged between 0.34 and 0.71. This variation is due to the different emission sources at each sampling point. Finally, a statistical analysis (the Kruskal-Wallis test) was applied to PM data and showed significant differences among populations for both PM10 and PM2.5.

  • 出版日期2012