Neutral polyfluoroalkyl and perfluoroalkyl substances in surface water and sediment from the Haihe River and Dagu Drainage Canal deserve more attention
- 19 Downloads
Neutral polyfluoroalkyl and perfluoroalkyl substances (nPFASs) were detected in the surface water and sediment from the Haihe River (HR) and Dagu Drainage Canal (DDC), Tianjin, China. N-methyl perfluorooctane sulfonamide ethanol (MeFOSE) and N-ethyl perfluorooctane sulfonamide ethanol (EtFOSE) were the predominant nPFASs in surface water and sediment, which was different from the composition in air. The concentrations of ΣnPFASs in water from the HR (1.88–8.21 ng/L) were lower than those from the DDC (3.72–11.32 ng/L). Concentrations of ΣnPFASs were higher in the middle of the HR in the Dongli District due to industrial activity, whereas at lower reaches of the DDC, high ΣnPFAS concentrations might be due to effluent from wastewater treatment plants (WWTPs). The detection frequency in sediment (13.5%) was less than that in water (83%). The concentrations in sediment from the DDC (below limit of qualification (LOQ) to 5.58 ng/g) were higher than those from the HR (below LOQ to 2.46 ng/g). The distribution coefficient (log KD) between water and sediment was calculated, and they were highly related to the compound structures. The contribution of nPFASs to nPFASs+PFAAs was up to 52% in sediment in the DDC, suggesting the importance of nPFASs in aquatic systems.
KeywordsNeutral polyfluoroalkyl and perfluoroalkyl substances Surface water and sediment Haihe River Dagu Drainage Canal
This study was funded by the National Natural Science Foundation of China (No. 41603101 and No.41573097).
- Li J, Del Vento S, Schuster J, Zhang G, Chakraborty P, Kobara Y, Jones KC (2011a) Perfluorinated Compounds in the Asian Atmosphere. Environmental Sci Technol 45:7241-7248.Google Scholar
- Lu ZB, Lu R, Zheng HY, Yan J, Song LN, Wang J, Yang HZ, Cai MH (2018) Risk exposure assessment of per- and polyfluoroalkyl substances (PFASs) in drinking water and atmosphere in central eastern China. Environ Sci Pollut Res 25:1–1Google Scholar
- Tianjin Environmental Protection Bureau. 2001. Environmental quality report of Tianjin in 1996–2000 Tianjin, China.Google Scholar
- Tianjin Binhai New Area Government. (2016) In 2016, the total value of the Binhai New Area was broken by trillions, http://bhxq.mofcom.gov.cn/article/dongtai/201702/20170202519704.shtml
- UNEP. Stockholm convention on persistent organic pollutants, http://chm.pops.int/.
- Yao Y, Chang S, Zhao YY, Tang JH, Sun HW, Xie ZY (2017) Per- and poly-fluoroalkyl substances (PFASs) in the urban, industrial, and background atmosphere of Northeastern China coast around the Bohai Sea: occurrence, partitioning, and seasonal variation. Atmos Environ 167:150–158CrossRefGoogle Scholar