Accumulation of polychlorinated biphenyls and brominated flame retardants in breast milk from women living in Vietnamese e-waste recycling sites.
نویسندگان
چکیده
This study investigated the contamination status of PCBs, PBDEs and HBCDs in human and possible exposure pathways in three Vietnamese e-waste recycling sites: Trang Minh (suburb of Hai Phong city), Dong Mai and Bui Dau (Hung Yen province), and one reference site (capital city Hanoi) by analysing human breast milk samples and examining the relationships between contaminant levels and lifestyle factors. Levels of PBDEs, but not PCBs and HBCDs, were significantly higher in Trang Minh and Bui Dau than in the reference site. The recyclers from Bui Dau had the highest levels of PBDEs (20-250 ng g(-1) lipid wt.), higher than in the reference group by two orders of magnitude and more abundant than PCBs (28-59 ng g(-1) lipid wt.), and were also the only group with significant exposure to HBCDs (1.4-7.6 ng g(-1) lipid wt.). A specific accumulation, unrelated to diet, of low-chlorinated PCBs and high-brominated PBDEs was observed in e-waste recyclers, suggesting extensive exposure to these compounds during e-waste recycling activities, possibly through inhalation and ingestion of dust. The estimated infant intake dose of PBDEs from breast milk of some mothers occupationally involved in e-waste recycling were close to or higher than the reference doses issued by the U.S. EPA.
منابع مشابه
Contamination of Brominated Flame Retardants (BFRs) in Human Hair from E-waste Recycling Site in Vietnam
In this study, polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDs) and polychlorinated biphenyls (PCBs) were determined in human scalp hair from Vietnam. Levels of PBDEs and HBCDs were significantly higher in hair of e-waste recycling workers in Bui Dau (e-waste recycling site), an e-waste recycling site than those in general residents in Bui Dau, Dong Mai (lead battery recy...
متن کاملPolychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs), polychlorinated biphenyls (PCBs), chlorinated pesticides and brominated flame retardants in mother ́s milk from primiparae women in Uppsala County, Sweden – Levels and trends 1996-2006
متن کامل
Brominated flame retardants--safety at what cost?
A population-based study of human immunodefi ciency virus in south India reveals major diff erences from sentinel surveillance-based estimates. Study Group. Declining HIV infection rates among recently married primigravid women in Pune, India. Polybrominated diphenyl ethers (PBDEs) are a group of brominated compounds (209 congeners) that are typically used as fl ame retardants in the manufactur...
متن کاملBrominated Flame Retardants (BFRs) in China: Wastewater Sources and Treatment Methods
China is one of the largest producers and users of brominated flame retardants (BFRs) in the world. This has led to ubiquitous environmental occurrence of the main BFRs commercially available in China, namely polybrominated diphenyl ethers (PBDEs), hexabromocyclododecanes (HBCDs), and tetrabromobisphenol A (TBBPA). Wastewater from BFR manufacturing, manufacturing of BFR-based products, and e-wa...
متن کاملBreast cancer among women in Michigan following exposure to brominated flame retardants.
In this updated follow-up, we investigated the breast cancer experience among women in Michigan exposed to brominated flame retardants, some 30 years following exposure. Michigan residents were enrolled in a study cohort after exposure to polybrominated biphenyls (PBBs) through the consumption of contaminated food products. PBB concentrations were measured in serum at the time of enrolment. Can...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- The Science of the total environment
دوره 408 9 شماره
صفحات -
تاریخ انتشار 2010