Preliminary analysis of variability in concentration of fine particulate matter - PM _1.0, PM _2.5 and PM ₁₀ in area of Poznań city

摘要

It is commonly known, that suspended particulate matter pose a threat to human life and health, negatively influence the flora, climate and also materials. Especially dangerous is the presence of high concentration of particulate matter in the area of cities, where density of population is high. The research aimed at determining the variability of suspended particulate matter concentration (PM_(1.0), PM_(2.5)and PM_(10)) in two different thermal seasons, in the area of Poznań city. As a part of carried out work we analyzed the variability of concentrations and also performed a preliminary analysis of their correlation. Measured concentrations of particulate matter were contained within following ranges: PM_(10)– 8.7-69.6 μg/m~(3), PM_(2.5)– 2.2-88.5 μg/m~(3), PM_(1.0)– 2.5-22.9 μg/m~(3)in the winter season and 1.0-42.8 μg/m~(3)(PM_(10)), 1.2-40.3 μg/m~(3)(PM_(2.5)) and 2.7-10.4 (PM_(1.0)) in the summer season. Preliminary correlative analysis indicated interdependence between the temperature of air, the speed of wind and concentration of particulate matter in selected measurement points. The values of correlation coefficients between the air temperature, speed of wind and concentrations of particulate matter were respectively equal to: for PM_(10): -0.59 and -0.55 (Jana Paw?a II Street), -0.53 and -0.53 (Szymanowskiego Street), for PM_(2.5): -0.60 and -0.53 (Jana Paw?a II Street) and for PM_(1.0)-0.40 and -0.59 (Jana Paw?a II Street).