Domestic Duck Eggs: An Important Pathway of Human Exposure to PBDEs around E-Waste and Scrap Metal Processing Areas in Eastern China
- 18 July 2013
- journal article
- Published by American Chemical Society (ACS) in Environmental Science & Technology
- Vol. 47 (16), 9258-9266
- https://doi.org/10.1021/es402300m
Abstract
Although consumption of local foods is recognized as an important pathway of human exposure to PBDEs in areas of China involved in rudimentary recycling of electronic waste (e-waste), dietary intake studies to date have not considered the contribution from consumption of duck eggs, despite being a common dietary component. Fresh duck eggs (n = 11) were collected from each of five farms located within 500 m of e-waste recycling workshops in the Wenling and Luqiao districts of Taizhou City, Eastern China, in November 2011, along with eggs from a control site located 90 km to the northeast. Average ΣPBDE yolk concentrations in eggs from the Taizhou farms ranged from 52.7 to 1778 ng/g lipid weight (8 ng/g lipid weight at the control site), at the high end of values previously reported for PBDEs in chicken eggs from the same locations and with BDE-209 predominant in over 60% of samples. Estimated typical adult daily ΣPBDE intakes due to consumption of duck eggs were in the range of 159–5124 ng/person per day. For the pentabrominated BDE-99 congener, estimated intakes from duck eggs alone were substantially above the no adverse effect level (NAEL) for impaired human spermatogenesis proposed by Netherlands researchers.Keywords
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