Long-term chemical characterization of aerosols at CVAO from 2012 to 2013

The sampling regime has been changed several times. All changes are described by Fomba et al. (2014). The PM10 filter were stored in a freezer at Mindelo and transported frozen from Minelo to Germany to TROPOS. The sampling height was 32 m above ground (42 m above sea level).Organic and elemental carbon were analyzed by a two-step thermographic method (C-mat 5500, Ströhlein, Germany) with nondispersive infrared sensor (NDIR) detection as described in Neusüss et al. (2002, doi:10.1029/2001JD000514), Gnauk et al. (2008, doi:10.1016/j.atmosenv.2008.05.001) and Carpenter et al. (2010, doi:10.1007/s10874-011-9206-1). The detection limits for quartz fiber filter analysis were 30 ng/m**3 for EC and 100 ng/m**3 for OC.