Evaluating the Distribution of Perfluoroalkyl Substances in Rice Paddy Lysimeter with an Andosol.
Evaluating the Distribution of Perfluoroalkyl Substances in Rice Paddy Lysimeter with an Andosol.
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DOI：
10.3390/ijerph191610379
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发表时间：
2022-08-20
影响因子：
--
通讯作者：
Yamashita, Nobuyoshi
中科院分区：
文献类型：
--
作者：
Eun, Heesoo;Yamazaki, Eriko;Pan, Yu;Taniyasu, Sachi;Noborio, Kosuke;Yamashita, Nobuyoshi
分析了安土式稻田渗滤仪中可能出现的持久性污染物全氟烷基物质（PFAS）的性质，以确定其迁移率和碳链长度和官能团的淋滤行为。为此，溶解计中使用模拟污染水（ΣPFAS = 1,185,719 ng/L）。结果表明，水稻土渗滤仪中PFAS的分布受其向灌溉水的迁移及其在土壤中的吸附作用的影响。模拟污染水体的主要成分PFHxS （C6）和PFOS （C8）主要集中在0 ~ 35 cm的低腐殖质和土壤层土壤中。PFAS的分布可能取决于土壤性质，如总碳（TC）含量。与全氟烷烃磺酸（PFSAs）相比，全氟烷基羧酸（PFCAs）在土壤中的分布有显著差异。除长链PFCAs外，其余PFCAs分布在渗滤仪的所有层上。此外，PFSA的分布与碳链数直接相关，长链和短链PFSA分别在表层和底层积累。本研究提供了日本土壤中单个PFAS的分布、淋溶、吸收和积累的详细信息。
The properties of potential emerging persistent contaminants, perfluoroalkyl substances (PFAS), in an andosol rice paddy lysimeter were analyzed to determine their mobility and leaching behavior regarding carbon chain length and functional groups. For this purpose, simulated contaminated water (ΣPFAS = 1,185,719 ng/L) was used in the lysimeter. The results showed that PFAS distribution in the paddy soil lysimeter was influenced by the migration of these substances into irrigation water and their adsorption into the soil. PFHxS (C6) and PFOS (C8), which are the main components of the simulated contaminated water, were mostly captured in the soil layers of the low-humic andosol layer (0–35 cm). PFAS distribution may depend on soil properties, such as total carbon (TC) content. Compared with perfluoroalkane sulfonic acids (PFSAs), the distribution of perfluoroalkyl carboxylic acids (PFCAs) in soil showed significant variation. The remaining PFCAs were distributed across all layers of the lysimeter, except for the longer-chain PFCAs. Moreover, the PFSA distribution was directly correlated with the carbon chain number, whereby longer- and shorter-chain PFSAs accumulated in the top and bottom soil layers, respectively. This study provides detailed information on the distribution, leaching, uptake, and accumulation of individual PFAS in andosol paddy fields in Japan.
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影响因子：
8.8
作者：
Ahrens, Lutz;Yeung, Leo W. Y.;Yamashita, Nobuyoshi
通讯作者：
Yamashita, Nobuyoshi
影响因子：
8.8
作者：
Gellrich, V.;Stahl, T.;Knepper, T. P.
通讯作者：
Knepper, T. P.
影响因子：
4.3
作者：
Clarke, Rachel;Healy, Mark G.;Cummins, Enda
通讯作者：
Cummins, Enda
影响因子：
8.3
作者：
Christensen, Krista Y.;Raymond, Michelle;Turyk, Mary
通讯作者：
Turyk, Mary
DOI：
10.1039/d0em00291g
发表时间：
2020-12-01
期刊：
Environmental science. Processes & impacts
影响因子：
--
作者：
Glüge J ;Scheringer M ;Cousins IT ;DeWitt JC ;Goldenman G ;Herzke D ;Lohmann R ;Ng CA ;Trier X ;Wang Z
通讯作者：
Wang Z