Perfluorooctane sulfonate(PFOS) and related fluorochemicals in chicken egg in China  

作　　者：WANG Yuan YEUNG Leo Wai Yin YAMASHITA Nobuyoshi TANIYASU Sachi SO Man Ka Margaret B. MURPHY LAM Paul Kwan Sing 

机构地区：[1]Centre for Coastal Pollution and Conservation, Department of Biology and Chemistry, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon Tong, HKSAR, China [2]National Institute of Advanced Industrial Science and Technology (AIST), 16-10nogawa, Tsukuba, Ibaraki 305-8569, Japan

出　　处：《Chinese Science Bulletin》2008年第4期501-507,共7页

基　　金：Supported by the Strategic Research Grant at City University of Hong Kong (Grant No. 7001990)

摘　　要：The ubiquitous occurrence of perfluorinated compounds(PFCs) in environmental samples has drawn much attention.Recent human exposure studies found relatively high perfluorooctane sulfonate(PFOS) concentrations in blood samples from several cities in China when compared with other countries.The objectives of the present study were:(1) to measure PFC concentrations and compositions in chicken egg samples from local markets in China;and(2) to conduct a preliminary human health risk assessment of egg consumption.Eight pooled egg samples from eight locations were analyzed for 11 PFCs.The results showed that close to 100% of the PFOS in the egg was distributed in egg yolk and PFOS was not detected in egg white(<0.08 ng/g wet weight,w/w).Of the perfluoroalkylsulfonates,only PFOS was detected in all egg samples,while of the perfluoroalkylcarboxylates,perfluoroundecanoic acid(PFUnDA) was detected in all samples,followed by perfluorooctanoate(PFOA)(75% occurrence) and perfluorodecanoic acid(PFDA)(50% occurrence).PFOS concentrations in egg ranged from 45.0 to 86.9 ng/g w/w.The results suggested that current concentrations of PFOS in domestic chicken eggs are unlikely to cause immediate harm to Chinese populations.The ubiquitous occurrence of perfluorinated compounds （PFCs） in environmental samples has drawn much attention. Recent human exposure studies found relatively high perfluorooctane sulfonate （PFOS） concentrations in blood samples from several cities in China when compared with other countries. The objectives of the present study were： （1） to measure PFC concentrations and compositions in chicken egg samples from local markets in China; and （2） to conduct a preliminary human health risk assessment of egg consumption. Eight pooled egg samples from eight locations were analyzed for 11 PFCs. The results showed that close to 100% of the PFOS in the egg was distributed in egg yolk and PFOS was not detected in egg white （〈0.08 ng/g wet weight, w/w）. Of the perfluoroalkylsulfonates, only PFOS was detected in all egg samples, while of the perfluoroalkylcarboxylates, perfluoroundecanoic acid （PFUnDA） was detected in all samples, followed by perfluorooctanoate （PFOA） （75% occurrence） and perfluorodecanoic acid （PFDA） （50% occurrence）. PFOS concentrations in egg ranged from 45.0 to 86.9 ng/g w/w. The results suggested that current concentrations of PFOS in domestic chicken eggs are unlikely to cause immediate harm to Chinese populations.

关 键 词：中国 鸡蛋 人体健康风险评估 污染物 含氟化合物 全氟辛烷磺酸 

分 类 号：X503.22[环境科学与工程—环境工程]