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Primary and secondary organic aerosol origin by combined gas-particle phase source apportionment

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Table 1. Relative source contribution to each PTR-MS m/z (winter campaign). Bold numbers refer to the sources with the highest contribu- contribu-tion to each PTR-MS mass.
Table 2. Relative source contribution to each PTR-MS m/z (summer campaign). The average contribution of the two separated marine factors is reported here
Fig. 1. 1E values as function of the number of PMF factors (col- (col-ors) and C PTR for the winter and summer campaigns
Fig. 2. Wintertime AMS and PTR-MS source mass spectra sep- sep-arated with the combined PMF approach
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