| Abstrakt: |
The high levels of all air pollutants are of great importance for human health. Especially dangerous are particulate matter (PM) contaminants. PM is a mixture of solid particles and liquid droplets found in the air. Particle pollution includes: PM10: inhalable particles, with diameters that are between 2.5 and 10 micrometers; and PM2.5: fine particles, with diameters that are generally 2.5 micrometers and smaller. These particles are emitted in air directly from a source, such as construction sites, unpaved roads, fields, smokestacks, volcanos or fires. Most particles form in the atmosphere as a result of complex reactions of chemicals such as sulphur dioxide and nitrogen oxides, which are pollutants emitted from power plants, industries and automobiles. For all European countries there are many regulations aimed against the air contamination and for the monitoring of pollution. Bulgaria, as a part of EU has to follow all these regulations. Still in Bulgaria there are many places and periods of time during the years with PM10 contamination, bigger than the daily norm of 50µg/m3. This study is to investigate the PM10 air pollution in the city of Svishtov, Bulgaria for the period 2012–2021. Svishtov is located in northern Bulgaria, on the bank of the river Danube – the north Bulgarian border with Romania. For the study we use official data from the monitoring of PM10 air contamination in Svishtov region, Bulgaria. We apply statistic methods to study data and to predict future PM10 pollution in the city of Svishtov. All results of the study are graphically presented and commented. [ABSTRACT FROM AUTHOR] |
