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. Author manuscript; available in PMC: 2013 Jun 4.
Published in final edited form as: Chemosphere. 2011 Jul 8;85(6):920–927. doi: 10.1016/j.chemosphere.2011.06.051

Table 2.

Cancer and non-cancer risk associated with consumption of fish estimated by PSDa,b

River location and Season N Non-cancer hazard quotient Consumption Excess cancer risk Consumption
Average High p-value Average High p-value
Upriver 37
Wet 13 2.0×10−4 1.3×10−3 3.8×10−6 3.1×10−5
Dry 24 4.0×10−4 3.3×10−3 0.07 5.6×10−6 4.6×10−5 0.31

Superfund Megasite 64
Wet 28 9.3×10−4 7.6×10−3 6.7×10−6 5.4×10−5
Dry 36 3.3×10−3 2.7×10−2 0.004 2.6×10−5 2.1×10−4 <0.001

Superfund No tar events 45
Wet 22 3.6×10−4 3.0×10−3 6.5×10−6 5.3×10−5
Dry 23 2.9×10−3 2.4×10−2 <0.001 2.2×10−5 1.8×10−4 <0.001

RMs 7W & 5W 28
no tar 19 1.1×10−3 8.5×10−3 1.5×10−5 1.2×10−4
tar 9 4.5×10−3 3.7×10−2 0.02 9.1×10−5 7.4×10−4 <0.001

Downriver 10
Wet 4 3.4×10−4 1.5×10−2 9.1×10−6 7.4×10−5
Dry 6 1.9×10−3 2.8×10−3 0.11 1.8×10−5 1.5×10−4 0.18
Threshold = 1 Threshold = 1.0 ×10−6
a

Mann-Whitney rank sum tests within location between seasons.

b

P-values are for comparisons between seasons

All test are at α = 0.05.