Factors affecting atmospheric 1-, 2-nitropyrenes and 2-nitrofluoranthene in winter at Noto peninsula, a remote background site, Japan
Factors affecting atmospheric 1-, 2-nitropyrenes and 2-nitrofluoranthene in winter at Noto peninsula, a remote background site, Japan
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DOI：
10.1016/j.chemosphere.2013.12.077
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发表时间：
2014-07-01
期刊：
影响因子：
8.8
通讯作者：
Hayakawa, Kazuichi
中科院分区：
文献类型：
--
作者：
Tang, Ning;Sato, Kousuke;Hayakawa, Kazuichi
从2006年1月至2007年12月，在日本诺托半岛的背景站点（Wajima空气监测站; WAMS）收集了空气中的颗粒物。采用高效液相色谱-化学发光法测定了颗粒物中的I-、2-硝基芘（I-、2-NPs）和2-硝基荧蒽（2-NFR）。冬季平均浓度高于夏季。气象分析表明，冬季采集的空气样品主要来自日本海上空的中国东北地区。2-NFR与1-NP、1-NP与芘的浓度比值与位于西气东输沿着的沈阳相似，而与西气东输附近的金泽不同。这些结果表明，冬季WAMS大气1-，2-NPs和2-NFR的大部分来自中国东北地区的长距离输送。(c)2014爱思唯尔有限公司版权所有。
Airborne particulates were collected at a background site (Wajima Air Monitoring Station; WAMS) on the Noto Peninsula, Japan from January 2006 to December 2007. I-, 2-nitropyrenes (I-, 2-NPs) and 2-nitrofluoranthene (2-NFR), in the particulates were determined with a sensitive HPLC method with chemiluminescence detection. The average concentrations were higher in winter than in summer. A meteorological analysis indicated that the air samples collected in winter were transported mainly from Northeast China over the Japan Sea. Both the concentration ratios of 2-NFR to 1-NP and 1-NP to pyrene were similar to those in Shenyang in Northeast China which located along the air transportation route to WAMS, but not in Kanazawa which near WAMS. These results strongly suggest that most of the atmospheric 1-, 2-NPs and 2-NFR at WAMS in winter were long range transported from Northeast China. (c) 2014 Elsevier Ltd. All rights reserved.