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Table 5 Calculation of Risk Quotients for individual PCB congeners

From: Systematic review of associations of polychlorinated biphenyl (PCB) exposure with declining semen quality in support of the derivation of reference doses for mixture risk assessments

PCB congener

RfD

Average consumption

High consumption

Exposure

(ng/kg/d)

Risk Quotient

average

Exposure

(ng/kg/d)

Risk Quotient

high

PCB-118

2.9

0.576

0.2

1.7

0.59

PCB-126

0.073

0.0035

0.05

0.01

0.14

PCB-153

5.86

1.7

0.29

5.1

0.87

PCB-169

5.33

0.00079

0.00015

0.0024

0.00045

  1. RfD Reference dose