Fig 1.
Geographical locality of the sample collection site.
Table 1.
Characteristics of sampling locations.
Table 2.
Linear regression data, LOD and LOQ of investigated compounds.
Table 3.
Parameters used in the incremental lifetime cancer risk assessment.
Table 4.
Summary of measured PAHs in indoor dust of Guizhou (μg·g−1).
Fig 2.
HPLC chromatograms and structures of 18 PAHs, 1–18: NAP, ANY, ANA, FLU, PHE, ANT, FLT, PYR, BaA, CHR, BbF, BkF, BjF, BeP, BaP, IPY, BEA and BPE.
Table 5.
Effect of functional type on individual PAH concentrations in dust samples of Guizhou (μg·g−1).
Table 6.
Comparison of measured mean PAHs in dust samples of Guizhou (μg·g−1).
Table 7.
Isomeric ratios for indoor dust samples.
Fig 3.
Plot with PC1 and PC2 from principal component analysis.
(a) Factor loadings of 18 PAHs on two components, and (b) factor scores of sampling locations on the PC1 and PC2.
Fig 4.
Clustering analysis diagram.
Table 8.
The potential cancer risk for each sampling zone and exposure pathway.