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The influence of atmospheric circulation on the air pollution concentration and temperature inversion in Sosnowiec. Case study

100%
Widawski A.
Environmental & Socio-economic Studies
|
2015
|
vol. 3
|
issue 2
30-40
EN
Sosnowiec is located in the Katowice Region, which is the most urbanized and industrialized region in Poland. Urban areas of such character favor enhancement of pollution concentration in the atmosphere and the consequent emergence of smog. Local meteorological and circulation conditions significantly influence not only on the air pollution level but also change air temperature considerably in their centers and immediate vicinities. The synoptic situation also plays the major role in dispersal and concentration of air pollutants and changes in temperature profile. One of the most important are the near-ground (100 m) inversions of temperature revealed their highest values on clear winter days and sometimes stay still for the whole day and night. Air temperature inversions in Sosnowiec occur mainly during anticyclone stagnation (Ca-anticyclone centre and Ka-anticyclonic ridge) and in anticyclones with air advection from the south and southwest (Sa and SWa) which cause significantly increase of air pollution values. The detailed evaluation of the influence of circulation types on the appearance of a particular concentration of pollutants carried out in this work has confirmed the predominant influence of individual circulation types on the development of air pollution levels at the Katowice region. This paper presents research case study results of the thermal structure of the near-ground atmospheric layer (100 m) and air pollution parameters (PM10, SO2, NO, NO2) changes in selected days of 2005 year according to regional synoptic circulation types. The changes in urban environment must be taken into account in analyses of multiyear trends of air temperature and air conditions on the regional and global scales.
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Influence of circulation types on the SO2 concentration in the Silesian Upland

63%
Radomski J., Widawski A.
Prace Geograficzne
|
2011
|
issue 126
PL
It is well known that the area of investigation is the most densely populated region in Poland, and air is one of the most important environmental elements determining the quality of human life. In spite of the improvement in the aero-sanitary conditions in recent years, the situation in this region is still unfavorable. Although less frequent, there are cases of exceeded air pollution norms, daily norms in particular, which is especially visible in the winter season. The detailed evaluation of the influence of circulation types on the appearance of particular concentrations of pollutants carried out in this work confirmed the predominant influence of individual circulation types - synthetic measures of atmospheric circulation - on the development of air pollution levels in the Silesian Upland. Daily immission data and three calendars of circulation types allowed the authors to present mutual relations between the considered variables in detail.
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