| 渤海湾大气金属元素沉降和来源解析研究 |
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| 引用本文： | 张国忠,崔阳,潘月鹏,田世丽,李广,倪雪,黄威,刘博文,顾梦娜,吕雪梅,何月欣,王跃思.渤海湾大气金属元素沉降和来源解析研究[J].环境科学学报,2019,39(8):2708-2716. |
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| 作者姓名： | 张国忠 崔阳 潘月鹏 田世丽 李广 倪雪 黄威 刘博文 顾梦娜 吕雪梅 何月欣 王跃思 |
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| 作者单位： | 甘肃农业大学林学院,兰州730070;中国科学院大气物理研究所,大气边界层物理和大气化学国家重点实验室,北京100029;中国科学院大气物理研究所,大气边界层物理和大气化学国家重点实验室,北京100029;甘肃农业大学林学院,兰州,730070 |
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| 基金项目： | 国家重点研发计划项目（No.2016YFD0800302，2017YFC0210100） |
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| 摘 要： | 干湿沉降是污染物从大气进入到地表生态环境的主要途径.渤海湾临近大气污染严重的京津冀地区,同时受航运交通排放影响,但渤海湾大气金属元素沉降量及其来源并不十分清楚.本研究于2016年11月—2017年10月在渤海西岸采集了大气沉降样品,利用电感耦合等离子体质谱仪(ICP-MS)对样品中25种金属元素的含量进行了测定分析,估算了大气金属沉降量并进行了源解析.结果表明:沉降样品中25种元素的浓度变化范围为2458.8μg·L~(-1)(Ca)～9.9 ng·L~(-1)(Th),年沉降量变化为1229.9 mg·m~(-2)·a~(-1)(Ca)～5.0μg·m~(-2)·a~(-1)(Th).受降水量季节分布的影响,多数金属元素的沉降量在夏季最高,春秋季较低.除Be、Fe、Ni、Cr、Al、Th和U等元素外,其余18种元素都有不同程度的富集,特别是Cd、Ag、Se和Sb等元素已高度富集.燃煤(12.8%)、扬尘(25.9%)、工业(33.1%)和航运(28.2%)是渤海湾沉降样品中金属元素的主要来源,尤其是航运排放对海湾大气Sb、Cd和Mo沉降具有显著贡献.研究结果可为京津冀区域海陆协同发展和环境质量改善提供科学参考.
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| 关 键 词： | 大气沉降 金属元素 沉降通量 来源解析 渤海湾 |
| 收稿时间： | 2019/3/12 0:00:00 |
| 修稿时间： | 2019/4/15 0:00:00 |
Deposition fluxes and source apportionment of atmospheric trace metals in the Bohai Bay |
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| ZHANG Guozhong,CUI Yang,PAN Yuepeng,TIAN Shili,LI Guang,NI Xue,HUANG Wei,LIU Bowen,GU Mengn,L&#; Xuemei,HE Yuexin and WANG Yuesi.Deposition fluxes and source apportionment of atmospheric trace metals in the Bohai Bay[J].Acta Scientiae Circumstantiae,2019,39(8):2708-2716. |
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| Authors: | ZHANG Guozhong CUI Yang PAN Yuepeng TIAN Shili LI Guang NI Xue HUANG Wei LIU Bowen GU Mengn L&#; Xuemei HE Yuexin and WANG Yuesi |
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| Institution: | 1. College of Forestry, Gansu Agricultural University, Lanzhou 730070;2. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,College of Forestry, Gansu Agricultural University, Lanzhou 730070,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 and 1. College of Forestry, Gansu Agricultural University, Lanzhou 730070;2. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029 |
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| Abstract: | |
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| Keywords: | atmospheric deposition trace metals deposition flux source apportionment Bohai Bay |
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