Characteristics of Gaseous Elemental Mercury in a Suburban Area of Shanghai, China.

IF 2.7 4区 环境科学与生态学 Q3 ENVIRONMENTAL SCIENCES
Xinyi Hao, Ji Wang, Yuanyuan Chen, Xiangmin Zheng, Limin Zhou, Yongjie Wang
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引用次数: 0

Abstract

To clarify gaseous elemental mercury (GEM) in suburban megacities in the Yangtze River Delta region, China, we observed GEM concentrations from December 2019 to November 2020 in Wujing town, a suburban area of Shanghai. The annual mean GEM concentration was 1.44 ± 0.88 ng m-3. Compared with the historical monitoring data of GEM in Shanghai over the past 10 years, the concentration of GEM showed a decreasing trend. The monthly mean concentrations of GEM showed clear seasonal variation, with higher values in the spring and winter. In spring and winter, typical Hg pollution events were observed, which could be mostly associated with increased local anthropogenic activity and temperature inversion. The results of the correlation analysis of the daily mean GEM concentrations with the AQI and backward trajectory calculations indicate that mercury pollution at monitoring sites can be affected by local, regional and interregional influences.

Abstract Image

中国上海郊区气态元素汞的特征。
为了弄清中国长江三角洲地区郊区特大城市的气态元素汞(GEM)情况,我们从 2019 年 12 月至 2020 年 11 月对上海郊区吴泾镇的气态元素汞浓度进行了观测。GEM 的年平均浓度为 1.44 ± 0.88 ng m-3。与过去 10 年上海 GEM 的历史监测数据相比,GEM 的浓度呈下降趋势。GEM 的月平均浓度有明显的季节性变化,春季和冬季的浓度值较高。在春季和冬季,出现了典型的汞污染事件,这可能主要与当地人为活动增加和气温反常有关。全球环境空气日均浓度与空气质量指数的相关性分析结果和后向轨迹计算结果表明,监测点的汞污染可能受到当地、区域和区域间的影响。
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来源期刊
CiteScore
5.60
自引率
3.70%
发文量
230
审稿时长
1.7 months
期刊介绍: The Bulletin of Environmental Contamination and Toxicology(BECT) is a peer-reviewed journal that offers rapid review and publication. Accepted submissions will be presented as clear, concise reports of current research for a readership concerned with environmental contamination and toxicology. Scientific quality and clarity are paramount.
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