Exposure to Emerging and Legacy Polyfluoroalkyl Substances in the Sixth Total Diet Study - China, 2016-2019

Yuxin Wang; Xueyan Gao; Jiaying Liu; Bing Lyu; Jingguang Li; Yunfeng Zhao; Yongning Wu

doi:10.46234/ccdcw2022.042

Exposure to Emerging and Legacy Polyfluoroalkyl Substances in the Sixth Total Diet Study - China, 2016-2019

China CDC Wkly. 2022 Mar 4;4(9):168-171. doi: 10.46234/ccdcw2022.042.

Authors

Yuxin Wang¹, Xueyan Gao², Jiaying Liu², Bing Lyu¹, Jingguang Li¹, Yunfeng Zhao¹, Yongning Wu¹

Affiliations

¹ NHC Key Laboratory of Food Safety Risk Assessment, Chinese Academy of Medical Science Research Unit (No. 2019RU014), China National Center for Food Safety Risk Assessment, Beijing, China.
² Key Laboratory of Precision Nutrition and Food Quality, Department of Nutrition and Health, China Agricultural University, Beijing, China.

Abstract

What is already known about this topic?: Perfluoroalkyl substances (PFASs) are persistent organic pollutants, which have multi-organ toxicity and potential health risk to humans.

What is added by this report?: The most commonly detected PFASs in the Sixth China Total Diet Study (TDS) samples were perfluorooctanesulfonate (PFOS), perfluorooctanoic acid (PFOA), perfluoroundecanoic acid (PFUdA), perfluorodecanoic acid (PFDA), perfluorononanoic acid (PFNA), and 9-chlorohexadecafluoro-3-oxanonane-1-sulfonate (6:2 Cl-PFESA). The mean estimated weekly intakes (EWIs) of PFOA, PFOS, and 6:2 Cl-PFESA in the Sixth TDS were 2.17, 2.72, and 2.75 ng/kg body weight per week, respectively.

What are the implications for public health practice?: The PFASs levels in some food category and dietary exposure still need to be continuously monitored, especially for 6:2 Cl-PFESA.

Keywords: Diet Study; Dietary Exposure; Polyfluoroalkyl Substances.

Copyright and License information: Editorial Office of CCDCW, Chinese Center for Disease Control and Prevention 2022.

Grants and funding

Supported by the National Key Research and Development Program of China (grant number 2017YFC1600500) and CAMS Innovation Fund for Medical Science (CIFMS 2019-I2M-5-024)