SOURCE APPORTIONMENT OF EQUIVALENT BLACK CARBON (EBC) AT A REGIONAL BACKGROUND SITE IN CENTRAL EUROPE
Abstrakt
Black carbon (BC) is a primary carbonaceous aerosol playing an important role on public health and the Earth's climate system (Bond et al., 2013). It is the most efficient light-absorbing aerosol species in the visible spectrum.
The wavelength dependence of light absorption has been widely used to investigate the influence of fossil fuel (traffic emissions) and biomass burning (Sandradewi et al., 2008; Vaishya et al., 2017). There are relatively scarce studies reported in Eastern Central Europe using real-time BC measurements.
This study focuses on a 5-year measurement of equivalent BC (EBC) at a regional background site in Central Europe. Our aim is to identify the potential sources of EBC, especially fossil fuel (ff) and biomass burning (bb).
The campaign was conducted from September 2012 to December 2017 at NAOK (National Atmospheric Observatory Košetice, 49°35ʹ N, 15°05ʹ E), central Czech Republic. The measurements of EBC in PM10 were performed at 4 m above the ground with a 7-wavelength aethalometer (AE31, Magee Scientific).