NDLI: Does Living Near a Superfund Site Contribute to Higher PolychlorinatedBiphenyl (PCB) Exposure?

Content Provider	PubMed Central
Author	Choi, Anna L. Levy, Jonathan I. Dockery, Douglas W. Ryan, Louise M. Tolbert, Paige E. Altshul, Larisa M. Korrick, Susan A.
Copyright Year	2006
Abstract	We assessed determinants of cord serum polychlorinated biphenyl (PCB) levelsamong 720 infants born between 1993 and 1998 to mothers living neara PCB-contaminated Superfund site in Massachusetts, measuring thesum of 51 PCB congeners (∑PCB) and ascertaining maternal address, diet, sociodemographics, and exposure risk factors. Addresses weregeocoded to obtain distance to the Superfund site and neighborhood characteristics. Wemodeled log10(∑PCB) as a function of potential individual and neighborhood riskfactors, mapping model residuals to assess spatial correlates of PCBexposure. Similar analyses were performed for light (mono–tetra) andheavy (penta–deca) PCBs to assess potential differencesin exposure pathways as a function of relative volatility. PCB-118 (relativelyprevalent in site sediments and cord serum) was assessedseparately. The geometric mean of ∑PCB levels was 0.40 (range, 0.068–18.14) ng/gserum. Maternal age and birthplace were thestrongest predictors of ∑PCB levels. Maternal consumption oforgan meat and local dairy products was associated with higher and smokingand previous lactation with lower ∑PCB levels. Infants bornlater in the study had lower ∑PCB levels, likely due to temporaldeclines in exposure and site remediation in 1994–1995. Noassociation was found between ∑PCB levels and residential distancefrom the Superfund site. Similar results were found with lightand heavy PCBs and PCB-118. Previously reported demographic (age) andother (lactation, smoking, diet) correlates of PCB exposure, as wellas local factors (consumption of local dairy products and Superfund sitedredging) but not residential proximity to the site, were importantdeterminants of cord serum PCB levels in the study community.
Related Links	http://dx.doi.org/10.1289/ehp.8827
Starting Page	1092
File Format	PDF
ISSN	00916765
e-ISSN	15529924
Journal	Environmental Health Perspectives
Issue Number	7
Volume Number	114
Language	English
Publisher	National Institute of Environmental Health Sciences
Publisher Date	2006-01-01
Access Restriction	Open
Rights Holder	National Institute of Environmental Health Sciences
Subject Keyword	Public Health, Environmental and Occupational Health Health, Toxicology and Mutagenesis Research in Higher Education
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Public Health, Environmental and Occupational Health

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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