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Table 2 Quantitative determinants of internal exposure and relative contribution of main congeners for dioxins, dl-PCBs, ndl-PCBs, OCPs, BFRs and PFAS in dogs

From: Pollutants in pet dogs: a model for environmental links to breast cancer

Chemical family

n

Minimum

Maximum

25-75%

Median

Main congeners

Dioxins

115

3.57 pg/g

278.29 pg/g

10-27 pg/g

15.59 pg/g

OCDD 63%

1234678-HpCDD 24%

123678-HxCDD 5%

2378-TCDD 0.5%

13 others 7.5%

dl-PCBs

115

201.07 pg/g

15776.67 pg/g

515-1545 pg/g

829.90 pg/g

PCB-118 36%

PCB-156 26%

PCB-189 22%

PCB-105 7%

PCB-157 5%

PCB-167 2%

PCB-114 1.5%

5 others 0.5%

ndl-PCBs

115

0.78 ng/g

99.52 ng/g

2-9 ng/g

4.28 ng/g

PCB-180 61%

PCB-153 31%

PCB-138 6%

3 others 2%

OCPs

94

0.50 ng/g

63.92 ng/g

6-15 ng/g

5.30 ng/g

HCHs 67%

Oxychlordane 13%

Dieldrin 10%

HCB 5%

Pentachlorobenzene 3%

Cis-heptachlor epox. 2%

BFRs

115

1.63 ng/g

272.95 ng/g

9-24 ng/g

16.93 ng/g

PBDE-209 85%

HBCD-α 9%

PBDE-153 3%

9 others 3%

PFAs

62

0.50 ng/ml

30.81 ng/ml

3-8 ng/ml

4.91 ng/ml

PFOS 49%

PFHxS 25%

PFNA 12%

PFOA 10%

12 others 4%