Table 1.

Sample characteristics in terms of provenance and aerosol mass concentration in the PM₁₀ and coarse (PM₁₀-PM_2.5) fractions. Provenance classification is based on BTs analysis (see Fig. S1 in the Supporting Information).

Sample code	Provenance	PM10 [μg m−3]	PMcoarse [μg m−3]
SH_20140220	Northern Africa – Algeria	19.3	11.7
SH_20140404	Northern Africa – Tunisia – Libya	27.5	13.4
SH_20140522	Northern Africa – Algeria	18.7	7.2
SH_20140624	Northern Africa – Tunisia – Mediterranean	12.7	3.9
SH_20141015	Northern Africa – Algeria – Tunisia – Libya	28.4	15.7
SH_20141107	Northern Africa – Libya	8.4	0.9
SH_20141130	Northern Africa – Tunisia – Libya	83.9	51.6
SH_20141201	Northern Africa – Tunisia – Algeria	86.9	55.7
SH_20150506	Northern Africa – Morocco – Algeria	30.1	17.5
NE_20140310	North East – Eastern Europe	17.5	6.8
RG_20140424	Regional – NE	7.1	0.9
NW_20141022	North West – France	6.1	1.7
NE_20141029	North East – Eastern Europe	11.5	2.1
NW_20141212	North-North West – France	6.3	1.1
RG_20150315	West-Tyrrhenian – Regional	19.6	4.8
RG_20150526	Regional – NE	5.2	0.3
RG_20150601	Regional – NW	15.3	5.0
RG_20150607	Regional – NE	13.3	2.3
NW_20150615	West – Iberian Peninsula	9.5	4.2