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Table 2 Results from chemical bulk analysis. The mean values with standard deviations for mass percentages of TC and OC, and OC/TC ratio, as well as the Total PAH and Adjusted PAH (see text).

From: Physicochemical characterisation of combustion particles from vehicle exhaust and residential wood smoke

Sample TC (%) OC/TC (%) OC (%) Total PAH (ng/mg) Adjusted PAH (ng/mg)
Tunnel St+ 14.3 ± 0.1 65.1 ± 3.1 9.3 ± 0.4 73 510
Tunnel St- 51.0 ± 3.8 47.9 ± 0.3* 24.4 ± 2.0 381 747
Wood 82.6 ± 5.8* 42.7 ± 4.4* 35.4 ± 5.1 9745 11797
Dieselx 80.0 ± 5.1* 20.4 ± 1.1 16.3 ± 1.2 67 84
  1. x The PAH sums for Diesel are based on data from the Certificate of Analysis (see text).
  2. * Pairs of data where no significant differences were observed