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Airborne particulate matter (APM), and in particular its fine fraction PM2.5, is well known as an important pollutant in the urban atmosphere worldwide. The health effects of APMs depend not only on their size but also on their chemical composition. Black carbon (BC), heavy metals and other constituents can impact human health and climate. The main sources of BC are the incomplete combustion of fossil fuels, biomass burning and other organic materials. Resuspension of soil and road materials, secondary aerosol for...

Fine particulate matter (PM2.5) is recognized as the most harmful air pollutant in Europe. The PM2.5 toxic effect is not only due to its size but also to its chemical composition. Black Carbon (BC) is one of the components of the PM2.5 that affects both human health and contributes to climate change [1-3]. It is emitted by the incomplete combustion of fossil fuels, biofuels, and biomass. There are no regular measurements of the BC concentrations in Bulgaria. This work presents new results from parallel field campa...

Black Carbon (BC) is one of the most significant ingredient of atmospheric fine particle matter which is a global climate, air quality and human health concern. A precise and accurate determination of both the concentration and source contribution of BC in air particulate samples is very important and can provide key information for environmental management regulators and researchers. BC is typically formed through the incomplete combustion of fossil fuels, biofuel, and biomass, and is emitted in anthropogenic and...