First Report of a Chinese PFOS Alternative Overlooked for 30 Years: Its Toxicity, Persistence, and Presence in the Environment

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• 作者：Siwen Wang ; Jun Huang ; Yang Yang ; Yamei Hui ; Yuxi Ge ; Thorj酶rn Larssen ; Gang Yu ; Shubo Deng ; Bin Wang ; Christopher Harman
• 刊名：Environmental Science & Technology
• 出版年：2013
• 出版时间：September 17, 2013
• 年：2013
• 卷：47
• 期：18
• 页码：10163-10170
• 全文大小：385K
• 年卷期：v.47,no.18(September 17, 2013)
• ISSN：1520-5851

文摘

This is the first report on the environmental occurrence of a chlorinated polyfluorinated ether sulfonate (locally called F-53B, C₈ClF₁₆O₄SK). It has been widely applied as a mist suppressant by the chrome plating industry in China for decades but has evaded the attention of environmental research and regulation. In this study, F-53B was found in high concentrations (43鈥?8 and 65鈥?12 渭g/L for the effluent and influent, respectively) in wastewater from the chrome plating industry in the city of Wenzhou, China. F-53B was not successfully removed by the wastewater treatments in place. Consequently, it was detected in surface water that receives the treated wastewater at similar levels to PFOS (ca. 10鈥?0 ng/L) and the concentration decreased with the increasing distance from the wastewater discharge point along the river. Initial data presented here suggest that F-53B is moderately toxic (Zebrafish LC₅₀-96 h 15.5 mg/L) and is as resistant to degradation as PFOS. While current usage is limited to the chrome plating industry, the increasing demand for PFOS alternatives in other sectors may result in expanded usage. Collectively, the results of this work call for future assessments on the effects of this overlooked contaminant and its presence and fate in the environment.