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Occurrence, distribution, air-seawater exchange and atmospheric deposition of organophosphate esters (OPEs) from the Northwestern Pacific to the Arctic Ocean.
Marine Pollution Bulletin ( IF 5.8 ) Pub Date : 2020-05-29 , DOI: 10.1016/j.marpolbul.2020.111243
Guangshui Na 1 , Chao Hou 2 , Ruijing Li 3 , Yali Shi 4 , Hui Gao 3 , Shuaichen Jin 3 , Yunze Gao 2 , Liping Jiao 5 , Yaqi Cai 4
Affiliation  

Eleven organophosphate esters (OPEs) in air and seawater were investigated from the Northwestern Pacific to the Arctic Ocean. The concentration of Σ11OPEs in air and seawater ranged from 231.56 to 1884.25 pg/m3 and from 8.47 to 143.45 ng/L, respectively. Halogenated OPEs dominated in both two media. The slight decreasing trend was observed for OPEs in gaseous air, no obvious trend for particle-bound OPEs and in seawater. The net air-seawater exchange flux ranged from −792.68 to 590.29 pg/m2/day. The dry deposition flux ranged from 13.64 to 94.17 ng/m2/day with high value observed at the Bering Strait (64.70 ng/m2/day). The relationship between temperature and OPEs particle-bound fractions suggests that temperature might be a driving factor of OPEs long-range atmospheric transport (LRAT). This research highlighted that OPEs are subject to LRAT from the Asian continent to the northwestern Pacific and Arctic Oceans and demonstrated the “sink” in polar regions of OPEs atmospheric transportation.



中文翻译:

从西北太平洋到北冰洋的发生,分布,空气-海水交换和大气沉积的有机磷酸酯(OPE)。

从西北太平洋到北冰洋,对空气和海水中的11种有机磷酸酯(OPE)进行了研究。Σ的浓度11在空气和海水的OPE介于231.56到1884.25皮克/米3,并从8.47到143.45纳克/升,分别。两种介质中卤化的OPE均占主导地位。在气态空气中观察到OPE略有下降的趋势,在颗粒结合的OPE和海水中没有明显的趋势。空气-海水净交换通量范围为-792.68至590.29 pg / m 2 /天。干沉积通量范围为13.64至94.17 ng / m 2 /天,在白令海峡观测到的高值(64.70 ng / m 2/天)。温度与OPEs颗粒结合分数之间的关系表明,温度可能是OPEs远距离大气传输(LRAT)的驱动因素。这项研究强调,从亚洲大陆到西北太平洋和北冰洋,OPEs受到LRAT的约束,并证明了OPEs大气传输的两极地区的“汇”。

更新日期:2020-05-29
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