1. Bioaccumulation and Ecological Risk of Perfluorinated Compounds in Aquatic Plants of Nansi Lake, China.
- Author
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Zhang, Guizhai, Pan, Zhaoke, Li, Jing, Zhou, Xiaoyan, Jing, Pei, Li, Xia, and Chen, Yan
- Subjects
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AQUATIC plants , *BIOACCUMULATION , *LAKES , *WATER sampling , *SEDIMENTS , *RISK assessment - Abstract
The work investigated the concentration of perfluorinated compounds (PFCs) in surface water, sediments and aquatic plants of Nansi Lake, China. The total concentration of 12 PFCs was in the range of 34.07–153.39 ng/L in surface water. The short-chain PFCs were dominant PFC homologs, and the concentration of PFOA was higher than that of PFOS in water samples. The total concentration of 12 PFCs was in the range of 0.63–1.62 ng/g (dry weight, DW) in the sediments. There were more long-chain PFCs (PFOA and PFOS) than short-chain PFCs in sediments, with no apparent connection according to the concentration of PFCs in water and sediments. Moreover, the bioaccumulation factors (BAF) indicated the aquatic plants had significant absorption for long-chain PFCs (PFOA and PFOS), especially PFOS. The log BAF value of Ceratophyllum demersum Linn for PFOS was the highest in all aquatic plants. Risk assessment indicated that the water environment of Nansi Lake was at a safe level. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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