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. Author manuscript; available in PMC: 2017 Aug 1.
Published in final edited form as: J Occup Environ Med. 2016 Aug;58(8):S22–S30. doi: 10.1097/JOM.0000000000000771

Figure 2.

Figure 2

Distributions of analytical results as box-plots (top) and average relative fractions of homologues and congeners (bottom). Box-plots: boxes represent inter-quartile ranges, black lines are medians, whiskers are quartiles ± (1.5*inter-quartile ranges), red crosses are arithmetical means. NAP is partially hidden on the PAH fraction plot because it represents about 70-78% of total mass concentration of PAHs. 2,3,7,8-TCDD-TEQ are computed according to TEQs proposed by Van den Berg et al.;48 BaP-TEQ are computed on TEFs according to Nisbet and LaGoy49 and Larsen and Larsen.51