Background concentrations of benzene, potential long range transport influences and corresponding cancer risk in four cities of central Europe, in relation to air mass origination.

摘要: Abstract Benzene concentrations covering the three year period 2015–2017, were derived from four background monitoring stations located in Berlin (Germany), Budapest (Hungary), Mons (Belgium) and Torino (Italy), order to calculate corresponding Incremental Lifetime Cancer Risk (ILCR) of an average adult, associated with inhalation benzene. In addition, a cluster analysis backward air mass trajectories was coupled Potential Source Contribution Function (PSCF) model aiming identify possible exogenous source regions benzene affecting cities also allocate ILCR atmospheric circulation patterns. A potential health risk (ILCR>10−6) exposure estimated all cities. Mons, enhanced fraction Southeast short range slow moving masses, which related extreme long transport episodes. Furthermore, increased observed during prevalence Southwest airflows, whilst PSCF isolated transboundary emission sources industrialized North Italy. Long fast marine masses Atlantic, not influenced by anthropogenic emissions, improved quality due dispersion. No effects confirmed Torino.