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Comparison values and context for Cape Cod PCB levels. |
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| Indoor air (ng/m3) |
House dust (μg/g) |
Serum (ng/g lipid) |
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|
|
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| EPA health-based guidelinea |
3.4 |
0.22 |
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| Maximum for 16 MA homesb (PCB 52+105+153 only) |
7.3 |
0.6 |
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| Maximum for 16 MA homesb (sum of 65 PCB congeners) |
51 |
3.6 |
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| Maximum for 1046 U.S. homesc (sum of PCB 105+153) |
10 |
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| NHANES PCBsd |
median |
267 |
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| 75th percentile |
394 |
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| 95th percentile |
715 |
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| maximum |
1466 |
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| NHANES 4,4'-DDEe |
median |
692 |
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| 75th percentile |
1314 |
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| 95th percentile |
2569 |
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| maximum |
6510 |
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|
abbreviations: PCBs, polychlorinated biphenyls; NHANES, National Health and Nutrition Examination Survey aEPA Health-based guidance value for total PCBs – EPA Region 9 Preliminary Remediation Goals for ambient air and residential soil (2004). bMaximum concentration of the sum of PCB congeners tested in a study of 16 homes (15 homes for dust) intended to represent background PCB levels in Southeastern, MA (Vorhees et al. 1997 and 1999). On average PCBs 52+105+153 represent 9% of the 65 congeners in air samples from this study and 12% of the congeners in dust. cSum of the maximum concentrations of PCBs 105 and 153 in a non-hodgkin lymphoma case-control study of 1046 homes in the U.S. (Colt 2005). dNHANES 1999–2002 data for white women over age 59 (n = 319) – sum of 10 PCBs measured on Cape Cod; non-detects set to 0. The 95th percentile for white men over age 59 (n = 295) is 679 ng/g lipid. eNHANES 1999–2002 data for white women over age 59 (n = 319) – 4,4'-DDE included as an alternate bioaccumulative, persistent organochlorine | ||||
Rudel et al. Environmental Health 2008 7:2 doi:10.1186/1476-069X-7-2 |
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