Statistical Study of the Influence of Some Atmospheric Characteristics upon the Particulate Matter (PM10) Air Pollutant in the City of Ruse, Bulgaria

Air pollution by particle matter (PM10 - particulate matter with a diameter between 2.5 and 10 mu m) is going up recently in Ruse region, Bulgaria [1,2]. It becomes clear also recently that the mean values of the temperature in Ruse region arc slightly goes up for the last 40 years and they are bigger than the mean temperature for Bulgaria. This could be a proof for climate change and warming in Ruse region. The presence of PM10 maybe affects the main atmospheric characteristics - temperature, atmospheric pressure and humidity. In our work [3] we examined in more details the influence of the temperature on the PM10 contamination during January months. This paper is one continuation of [3] and is devoted to examine the PM10 pollution in Ruse region during winter and its relationship with some other atmospheric characteristics (atmospheric pressure and humidity). It presents a statistical analysis of the level of PM10 air pollution in Ruse using data from the monitoring stations in the city [4]. The measurements cover the period since 2011 up to now. Descriptive statistics of PM10 as well as linear regression modeling are also presented and commented in the Paper.