Bioaccumulation and human exposure of perfluoroalkyl acids (PFAAs) in vegetables from the largest vegetable production base of China

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Bioaccumulation and human exposure of perfluoroalkyl acids (PFAAs) in vegetables from the largest vegetable production base of China
	Zhang, Meng; Wang, Pei; Lu, Yonglong; Lu, Xiaotian; Zhang, Anqi; Liu, Zhaoyang; Zhang, Yueqing; Khan, Kifayatullah; Sarvajayakesavalu, Suriyanarayanan
刊名	ENVIRONMENT INTERNATIONAL
	2020-02
卷号	135 页码:1-11
关键词	Perfluoroalkyl acids Vegetable production Greenhouse planting Bioaccumulation Food safety Health risk evaluation
ISSN号	0160-4120
英文摘要	This study investigated perfluoroalkyl acids (PFAAs) in edible parts of vegetables, soils, and irrigation water in greenhouse and open filed, for the first time, in Shouguang city, the largest vegetable production base in China, which is located nearby a fluorochemical industrial park (FIP). The bioaccumulation factors (BAFs) were calculated, and the human exposures of PFAAs via consumption of the vegetables for different age groups assuming the maximum levels detected in each vegetable and average consumption rates were also estimated. The Sigma PFAA levels ranged from 1.67 to 33.5 ng/g dry weight (dw) in the edible parts of all the vegetables, with perfluorobutanoic acid (PFBA) being the dominant compound with an average contribution of 49% to the Sigma PFAA level. The leafy vegetables showed higher Sigma PFAA levels (average 8.76 ng/g dw) than the fruit and root vegetables. For all the vegetables, the log io BAF values of perfluorinated carboxylic acids showed a decreasing trend with increasing chain length, with PFBA having the highest log in BAF values (average 0.98). Cabbage had higher bioaccumulation of PFBA (log(10) BAF 1.24) than other vegetables. For the greenhouse soils and vegetables, the average contribution of perfluorooctanoic acid (PFOA) to Sigma PFAA was lower than that in the open field samples, while the contributions of PFBA, PFHxA, PFPeA to Sigma PFAA were higher. Irrigation water may be an important source of PFAAs in greenhouse, while for open field vegetables and soils, atmospheric deposition may be an additional contamination pathway. The estimated maximum exposure to PFOA through vegetable consumption for urban preschool children (aged 2-5 years) was 63% of the reference dose set by the European Food Safety Authority. Suggestions are also provided for mitigating the health risks of human exposure to PFAAs.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/44228]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Meng,Wang, Pei,Lu, Yonglong,et al. Bioaccumulation and human exposure of perfluoroalkyl acids (PFAAs) in vegetables from the largest vegetable production base of China[J]. ENVIRONMENT INTERNATIONAL,2020,135:1-11.
APA	Zhang, Meng.,Wang, Pei.,Lu, Yonglong.,Lu, Xiaotian.,Zhang, Anqi.,...&Sarvajayakesavalu, Suriyanarayanan.(2020).Bioaccumulation and human exposure of perfluoroalkyl acids (PFAAs) in vegetables from the largest vegetable production base of China.ENVIRONMENT INTERNATIONAL,135,1-11.
MLA	Zhang, Meng,et al."Bioaccumulation and human exposure of perfluoroalkyl acids (PFAAs) in vegetables from the largest vegetable production base of China".ENVIRONMENT INTERNATIONAL 135(2020):1-11.