engleski

Determination and statistical analysis of PM2.5 and PM10 as an indicator of air pollution in Split region, Croatia

The study presents statistical analysis of air quality parameters, including PM2.5 and PM10 concentrations (measured at three stations in Split region), along with NO, NOx, NO2, SO2 and black smoke (BS) data, for a 5-year period. Average concentrations of PM2.5, at three different stations were found to be 28.2, 19.9 and 14.3 μg m-3, while those founded for PM10 were 17.8, 25.8 and 15.2 μg m-3. High correlations between PM2.5 and PM10 (0.62 and 0.54, respectively) were determined between industrial (A2) and residential (A3) stations, while lower correlation (between PM2.5 and PM10 was 0.22) was noticed at station placed in traffic and industrial (A1). At A1 station for 2009, A2 2010 and A3 2006 year the values of PM2.5 exceed the allowable limits by Croatian and EU Directive (25 μg m-3). Annual mean concentration levels of PM10 were below allowable limit (40 μg m-3) at all stations except for A3 in 2006 year. Contributions of different sources were determined using multivariate receptor modelling (Principal Component Analysis, Cluster Analysis) and it is found that major source of pollution are in accordance with stations position. Comparison of particle mass concentrations with those reported for different European cities indicate lower loading with PM in Split Region.

PM10; PM2.5; urban air pollution; Principal Component Analysis; Cluster Analysis

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