Quantitative Assessment of PM Sources and Their Seasonal Variation in Krakow.

In industry areas of Poland such as Silesia or urban sites like Krakow and some other cities, the levels of pollutants frequently breach air quality standards. Particulate matter (PM) is the most important constituent of atmospheric pollution. Beginning on 1st February 2014 until 31st January 2015, the samples of fine particulate matter PM (aerodynamic diameter of particles less than or equal to 2.