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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Environ Int. 2013 Dec 4;63:173–181. doi: 10.1016/j.envint.2013.11.007

Table 3.

Distribution of indoor concentrations of PAHs (ng/m3) from indoor and outdoor sources using Chrysene I/O ratio as a tracer.

Summer (N=18) Transition (N=41) winter (N=16) Total (N=75)
Indoor Indoor Indoor Indoor
Concentration Concentration Concentration Concentration
from from from from from from from from
Outdoor Indoor Outdoor Indoor Outdoor Indoor Outdoor Indoor
Sources Sources Sources Sources Sources Sources Sources Sources
(ng/m3)
Mean SE Mean SE Mean SE Mean SE Mean SE Mean SE Mean SE Mean SE
B[a]A 0.51 0.07 0.12 0.02 2.77 0.63 0.33 0.09 10.12 1.91 0.56 0.51 3.80 0.66 0.33 0.12
B[b]F 1.06 0.15 0.11 0.06 3.72 0.51 0.95 0.18 11.25 2.07 3.34 0.65 4.69 0.66 1.26 0.21
B[k]F 0.36 0.05 0.06 0.03 1.07 0.16 0.38 0.06 3.50 0.66 0.91 0.37 1.42 0.21 0.41 0.09
B[ghi]P 0.60 0.06 0.16 0.03 1.96 0.34 1.11 0.20 4.78 0.98 2.23 0.34 2.24 0.32 1.12 0.15
B[a]P 0.46 0.07 0.10 0.02 2.04 0.36 1.37 0.26 7.16 1.46 3.30 0.59 2.75 0.46 1.48 0.23
D[ah]A 0.14 0.02 0.03 0.02 0.47 0.09 0.26 0.06 1.22 0.25 0.57 0.09 0.55 0.09 0.27 0.04
IP 0.70 0.08 0.16 0.04 2.47 0.40 1.62 0.46 6.23 1.25 2.72 0.38 2.85 0.40 1.50 0.28
pyrene 1.99 0.19 −0.03 0.13 4.92 0.90 −0.32 0.22 15.70 3.33 −3.05 1.22 6.52 1.02 −0.83 0.31