高分辨率质谱法可疑筛选AFFFs和AFFF污染的地下水中的烃类表面活性剂,Environmental Science & Technology

当前位置： X-MOL 学术 › Environ. Sci. Technol. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

高分辨率质谱法可疑筛选AFFFs和AFFF污染的地下水中的烃类表面活性剂
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2019-07-03 , DOI: 10.1021/acs.est.9b01895
Raymmah Aleyda García , Aurea C. Chiaia-Hernández ₁ , Pablo A. Lara-Martin ₂ , Martin Loos ₃ , Juliane Hollender _{4,

5} , Karl Oetjen ₆ , Christopher P. Higgins ₆ , Jennifer A. Field

Affiliation

水性成膜泡沫（AFFF）是专有混合物，包含烃表面活性剂以及用于扑灭烃基燃料燃烧的全氟烷基物质和多氟烷基物质（PFAS）。尽管AFFFs中的氟烃表面活性剂比PFAS（0.9–1.5％w / w）更丰富（5–10％w / w），但AFFFs和受AFFF污染的地下水中的烃表面活性剂的信息有限。通过液相色谱四极杆飞行时间质谱分析法，分析了从1988年至2012年生产的八种商用AFFF和从消防员训练区附近水源区收集的10种受AFFF污染的地下水中可疑的烃类表面活性剂。将可疑清单和同源序列检测计算工具enviMass组合在一起，以筛选烃类表面活性剂。在AFFF中检测到九种烃类表面活性剂，包括辛基酚聚乙氧基化物，线性醇乙氧基化物，乙氧基化可可胺，烷基醚硫酸盐，烷基酰胺基二丙酸酯，线性烷基苯磺酸盐，烷基硫酸盐和聚乙二醇。其中，还有六种与二乙醇胺和烷基酰胺甜菜碱一起发现于地下水中，而在八种已归档的AFFF中均未发现。这表明尽管有氧生物可降解，但由于厌氧含水层条件，烃类表面活性剂可能会在地下水中持续存在。据我们所知，这是首次对AFFFs和受AFFF污染的地下水中的烃类表面活性剂进行筛选。烷基酰胺基二丙酸酯，直链烷基苯磺酸盐，烷基硫酸盐和聚乙二醇。其中，还有六种与二乙醇胺和烷基酰胺甜菜碱一起发现于地下水中，而在八种已归档的AFFF中均未发现。这表明尽管有氧生物可降解，但由于厌氧含水层条件，烃类表面活性剂可能会在地下水中持续存在。据我们所知，这是首次对AFFFs和受AFFF污染的地下水中的烃类表面活性剂进行筛选。烷基酰胺基二丙酸酯，直链烷基苯磺酸盐，烷基硫酸盐和聚乙二醇。其中，还有六种与二乙醇胺和烷基酰胺甜菜碱一起发现于地下水中，而在八种已归档的AFFF中均未发现。这表明尽管有氧生物可降解，但由于厌氧含水层条件，烃类表面活性剂可能会在地下水中持续存在。据我们所知，这是首次筛选AFFFs和受AFFF污染的地下水中的烃类表面活性剂。由于厌氧含水层条件，烃类表面活性剂可能会残留在地下水中。据我们所知，这是首次筛选AFFFs和受AFFF污染的地下水中的烃类表面活性剂。由于厌氧含水层条件，烃类表面活性剂可能会残留在地下水中。据我们所知，这是首次对AFFFs和受AFFF污染的地下水中的烃类表面活性剂进行筛选。

"点击查看英文标题和摘要"

Suspect Screening of Hydrocarbon Surfactants in AFFFs and AFFF-Contaminated Groundwater by High-Resolution Mass Spectrometry

Aqueous film-forming foams (AFFFs) are proprietary mixtures containing hydrocarbon surfactants and per- and polyfluoroalkyl substances (PFASs) that are used to extinguish hydrocarbon-based fuel fires. There is limited information on hydrocarbon surfactants in AFFFs and AFFF-contaminated groundwater even though hydrocarbon surfactants are more abundant (5–10% w/w) than PFASs (0.9–1.5% w/w) in AFFFs. Eight commercial AFFFs manufactured between 1988 and 2012 and 10 AFFF-contaminated groundwaters collected from near source zones of fire-fighter training areas were analyzed for suspect hydrocarbon surfactants by liquid chromatography quadrupole time-of-flight mass spectrometry. A suspect list and a homologous series detection computational tool, enviMass, were combined to screen for hydrocarbon surfactants. Nine classes of hydrocarbon surfactants were detected in AFFFs including octylphenol polyethoxylates, linear alcohol ethoxylates, ethoxylated cocoamines, alkyl ether sulfates, alkyl amido dipropionates, linear alkyl benzenesulfonates, alkyl sulfates, and polyethylene glycols. Of those, six were also found in groundwater along with diethanolamines and alkyl amido betaines, which were not found in the eight archived AFFFs. This indicates that although aerobically biodegradable, hydrocarbon surfactants likely persist in groundwater due to anaerobic aquifer conditions. To the best of our knowledge, this is the first screening for hydrocarbon surfactants in AFFFs and in AFFF-contaminated groundwater.

更新日期：2019-07-04

点击分享查看原文

点击收藏

公开下载

阅读更多本刊新发论文本刊介绍/投稿指南