Occurrence and distribution of organophosphate esters in the air and soils of Ny-Alesund and London Island, Svalbard, Arctic
Occurrence and distribution of organophosphate esters in the air and soils of Ny-Alesund and London Island, Svalbard, Arctic
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有机磷酸酯在尼勒松和伦敦岛、斯瓦尔巴群岛、北极的空气和土壤中的存在和分布。
DOI：
10.1016/j.envpol.2020.114495
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发表时间：
2020
影响因子：
8.9
通讯作者：
Jiang Guibin
中科院分区：
文献类型：
--
作者：
Han Xu;Hao Yanfen;Li Yingming;Yang Ruiqiang;Wang Pu;Zhang Gaoxin;Zhang Qinghua;Jiang Guibin
在2014-2015年中国北极科学考察期间，分析了在Ny-Ellesund和Svalbard的伦敦岛采集的空气和土壤样品中8种有机磷酸酯（OPEs）的水平。空气中总OPEs（∑OPEs）的浓度范围为357 ~ 852 pg/m3，土壤中的浓度范围为1.33 ~ 17.5 ng/g干重。大气和土壤中的非氯OPEs分别占∑OPEs的56 ± 13%和62 ± 16%。三（2-氯乙基）磷酸盐（TCEP）是空气中的主要化合物，平均浓度为180 ± 122 pg/m3。磷酸三苯酯、磷酸三（1-氯-2-丙基）酯和TCEP是土壤中最丰富的OPEs，平均值分别为1.77、2.13和1.02纳克/克干重。与以往研究中在北极地区发现的多溴联苯醚水平相比，臭氧消耗物质的浓度明显更高，这表明全球臭氧消耗物质的大量生产和广泛使用。此外，逸度分数的结果表明，从空气到土壤的净沉降在该地区占主导地位。总体而言，OPEs在北极地区空气和土壤中的存在和分布表明，OPEs可以进行远距离大气传输，并在偏远地区积累。
The levels of eight organophosphate esters (OPEs) were analyzed in air and soil samples collected at Ny-Ålesund and London Island, Svalbard during the Chinese Scientific Research Expedition to the Arctic during 2014–2015. The concentrations of total OPEs (∑OPEs) ranged from 357 pg/m3to 852 pg/m3in the air and from 1.33 ng/g to 17.5 ng/g dry weight (dw) in the soils. Non-Cl OPEs accounted for 56 ± 13% and 62 ± 16% of ∑OPEs for the air and soil, respectively. Tris(2-chloroethyl) phosphate (TCEP) was the dominant compound in the air, with an average concentration of 180 ± 122 pg/m3. Triphenyl phosphate, tri(1-chloro-2-propyl) phosphate, and TCEP were the most abundant OPEs in the soils, with mean values of 1.77, 2.13, and 1.02 ng/g dw, respectively. Compared with the levels of polybrominated diphenyl ethers found in Arctic regions in previous studies, OPEs showed significantly higher concentrations, thereby indicating the large production and wide usage of OPEs globally. In addition, the fugacity fraction results indicated that net deposition from air to soil was dominated in the area. Overall, the occurrence and distribution of OPEs in the air and soils in the Arctic region indicated that OPEs can undergo long-range atmospheric transport and accumulate in remote regions.