Table 1 presents the temporal evolution of the PAHs levels during
the study period, taking into account the annual arithmetic means of
air concentrations by species of PAH andΣPAH, from 2004 to 2014.
The minimum and maximum values are also presented. Through the
comparison of the reference values for Europe and according to the Position
Paper of the European Commission (European Commission,
2001), the annual mean levels of the PAHs measured during 2004–
2014 are mostly framed in the ranges of values found in rural areas of
Europe.