First Report of a Chinese PFOS Alternative Overlooked for 30 Years: Its Toxicity, Persistence, and Presence in the Environment
First Report of a Chinese PFOS Alternative Overlooked for 30 Years: Its Toxicity, Persistence, and Presence in the Environment
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DOI：
10.1021/es401525n
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发表时间：
2013-09-17
影响因子：
11.4
通讯作者：
Harman, Christopher
中科院分区：
文献类型：
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作者：
Wang, Siwen;Huang, Jun;Harman, Christopher
这是关于氯化多氟醚磺酸盐（当地称为F-53 B，C8 ClF 16 O 4SK）在环境中出现的第一份报告。几十年来，它作为抑雾剂在中国的Chrome电镀工业中得到了广泛应用，但一直回避环境研究和法规的关注。在这项研究中，F-53 B被发现在高浓度（43-78和65-112 μ g/L的流出物和流入物，分别）在废水中的Chrome工业在温州市，中国。F-53 B没有被废水处理成功去除。因此，在接受经处理的废水的地表水中检测到的全氟辛烷磺酸含量与全氟辛烷磺酸相似（约100%）。污染物浓度随距排污点沿着距离的增加而降低。此处提供的初步数据表明，F-53 B具有中等毒性（斑马鱼的LC 50 -96 h为15.5毫克/升），并且与全氟辛烷磺酸一样具有抗降解性。虽然目前的使用仅限于Chrome电镀行业，但其他行业对全氟辛烷磺酸替代品的需求不断增加，可能会导致使用范围扩大。总的来说，这项工作的结果要求今后对这种被忽视的污染物的影响及其在环境中的存在和归宿进行评估。
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 (43-78 and 65-112 mu 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. 10-50 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.