Preliminary analysis of variability in concentration of fine particulate matter - PM_1.0, PM_2.5 and PM₁₀ in area of Poznań city

Abstract

Abstract.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 (PM1.0, PM2.5 and PM10) 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: PM10 -8.7-69.6 µg/m 3 , PM2.5 -2.2-88.5 µg/m 3 , PM1.0 -2.5-22.9 µg/m 3 in the winter season and 1.0-42.8 µg/m 3 (PM10), 1.2-40.3 µg/m 3 (PM2.5) and 2.7-10.4 (PM1.0) 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 PM10: -0.59 and -0.55 (Jana Pawła II Street), -0.53 and -0.53 (Szymanowskiego Street), for PM2.5: -0.60 and -0.53 (Jana Pawła II Street) and for PM1.0 -0.40 and -0.59 (Jana Pawła II Street).

Archives of Environmental Protection

“…Also, meteorological conditions in the winter season (frequent windless periods, temperature inversion) are not favorable to dispersion of PM in the atmosphere. The analysis performed by Sówka et al (2018) 2014,2016). In contrast, the cities located in Northern Europe (Helsinki, Copenhagen, Stockholm, London) are characterized by a lack of variability in concentrations of PM during the year; in Wesernt Europe the seasonal variation of PM concentration is not so clear like in Poland (Błaszczak et al 2016, Cusack et al 2012, Rogula-Kozłowska et al 2014, Rouïl and Meleux 2016.…”