Screening for perfluoroalkyl acids in consumer products, building materials and wastes
Screening for perfluoroalkyl acids in consumer products, building materials and wastes
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DOI：
10.1016/j.chemosphere.2016.08.112
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发表时间：
2016-12-01
期刊：
影响因子：
8.8
通讯作者：
Klanova, Jana
中科院分区：
文献类型：
--
作者：
Becanova, Jitka;Melymuk, Lisa;Klanova, Jana
全氟烷基和多氟烷基物质（PFAS）是一大类重要的化合物，具有独特和有用的物理化学性质，广泛生产并在许多应用中使用。然而，由于某些全氟辛烷磺酸的毒性、生物累积性和远距离迁移潜力，它们引起了科学家和决策者的严重关切。为了评估PFASs对人体的暴露，有必要了解这些新兴污染物在环境中的浓度，特别是城市居民大部分时间居住的环境，即建筑物和车辆中的浓度，因此，共分析了126个建筑材料、消费品、汽车内饰材料和废物样品中关键PFASs - 15全氟烷基酸（PFAAs）的含量。在88%的所有样品中检测到至少一种靶PFAA 5。正如预期的那样，在纺织材料中发现了最高浓度的M15 PFAAs（77.61 μ g kg（-1）），因为已知特定的PFAAs在加工过程中用于纺织品处理。令人惊讶的是，在所有分析的复合木材建筑材料中也检测到PFAA 5，其主要是链中具有5-8个碳的全氟烷基羧酸（Sigma 4PFCAs高达32.9 μ g kg（-1））。这些材料目前广泛用于建筑翻新，这是第一项发现复合木材中存在特定PFAS的证据的研究。因此，除了经过PFAS处理的消费品外，房屋、学校和办公楼建筑中使用的材料也可能在人类接触PFAS方面发挥重要作用。(C)2016爱思唯尔有限公司版权所有
Perfluoroallcyl and polyfluoroalkyl substances (PFASs) are a large group of important chemical compounds with unique and useful physico-chemical properties, widely produced and used in many applications. However, due to the toxicity, bioaccumulation and long-range transport potential of certain PFASs, they are of significant concern to scientists and policy makers. To assess human exposure to PFASs, it is necessary to understand the concentrations of these emerging contaminants in our environment, and particularly environments where urban population spend most of their time, i.e. buildings and vehicles.A total of 126 samples of building materials, consumer products, car interior materials and wastes were therefore analyzed for their content of key PFASs - 15 perfluoroallcyl acids (PFAAs). At least one of the target PFAA5 was detected in 88% of all samples. The highest concentration of M15PFAAs was found in textile materials (77.61 mu g kg(-1)), as expected, since specific PFAAs are known to be used for textile treatment during processing. Surprisingly, PFAA5 were also detected in all analyzed composite wood building materials, which were dominated by perfluoroalkyl carboxylic acids with 5-8 carbons in the chain (Sigma 4PFCAs up to 32.9 mu g kg(-1)). These materials are currently widely used for building refurbishment, and this is the first study to find evidence of the presence of specific PFASs in composite wood materials. Thus, in addition to consumer products treated with PFASs, materials used in the construction of houses, schools and office buildings may also play an important role in human exposure to PFASs. (C) 2016 Elsevier Ltd. All rights reserved.