Abstract
The concentrations of suspended particulate matter PM10 in two-month winter period, i.e. December–January in years 2009–2015, were analyzed in relation to the values of wind speed in that time. It was possible to analyze results of air pollution measurements performed in the measuring station from the perspective of their higher levels in winter seasons (so-called smog episodes). Results from 3 stations of the Regional Inspectorate for Environmental Protection in Poznań (WIOŚ Poznań) served for better presentation of smog episodes in the region (black smog) and aimed at verification of correctness of the measurements of pollution immission in the monitoring station in Piotrkowice which is situated in vicinity of large combustion plant. The analysis confirmed that with low speeds of wind higher values of particulate matter PM10 were observed. The results of the analysis also show the displacement of pollutants according to the current wind direction or their local persistence for a longer time over one area.
Highlights
Air quality and pollution levels are a problem in industrial and highly urbanized areas and in typical agricultural areas
Results for PM10 from air monitoring stations of the Voivodship Inspectorate for Environmental Protection in Poznan taken into account in the analysis, were used to compare the level of this pollution with the results obtained in the Piotrkowice station and helped us to determine its occurrence at the same time on a larger area
The results of PM10 suspended particulate concentrations from the monitoring station in Piotrkowice were marked as yellow columns with the term “Piotrkowice”, while the results from the station of the Regional Inspectorate for Environmental Protection were shown as dots in green, blue and purple, marked in the legend of “Poznań-Botanik”, “PoznańPolanka” and “Konin-Wyszyński”
Summary
Air quality and pollution levels are a problem in industrial and highly urbanized areas and in typical agricultural areas. High amounts of particulate matter are emitted from the chemical, mining, metallurgical and construction industries (cement production) and, above all, as a result of the activity of power plants For this reason both the concentration of particulate matter and its precipitation are important indicators of atmospheric pollution. In the winter season in Poland, especially in Polish towns, smog episodes i.e. extremely high mass concentrations of particulate matter PM10 and PM2.5 are observed in high-altitude weather, with negative temperatures, low wind and temperature inversion, at the inflow of cold air from the east. These are completely different atmospheric conditions from the conditions occurring during the so-called London-type smog
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