[1] Chen Ming, Zheng Zhaohui, Fu Dafang, Zhang Kefeng, et al. Characteristics of Hg pollution in urban stormwater runoffin Nanjing city, China [J]. Journal of Southeast University (English Edition), 2014, 30 (2): 158-163. [doi:10.3969/j.issn.1003-7985.2014.02.004]
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Characteristics of Hg pollution in urban stormwater runoffin Nanjing city, China(
)
南京市路面雨水径流汞Hg污染特性研究
)Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]
- Volumn:
- 30
- Issue:
- 2014 2
- Page:
- 158-163
- Research Field:
- Environmental Science and Engineering
- Publishing date:
- 2014-06-20
Info
- Title:
- Characteristics of Hg pollution in urban stormwater runoffin Nanjing city, China
- 南京市路面雨水径流汞Hg污染特性研究
- Author(s):
- Chen Ming1; Zheng Zhaohui1; Fu Dafang1; Zhang Kefeng2
-
1School of Civil Engineering, Southeast University, Nanjing 210096, China
2Department of Civil Engineering, Monash University, Melbourne, VIC 3800, Australia
- 汞污染; 城市径流; 事件平均浓度(EMC); 影响因素
- PACS:
- X508
- DOI:
- 10.3969/j.issn.1003-7985.2014.02.004
- Abstract:
- In order to assess the mercury(Hg)pollution in urban stormwater runoff in Nanjing, 11 rainfall events in the Maqun region of Nanjing circle expressway were monitored, and the events mean concentrations(EMC)of Hg and the impact of rainfall characteristics on Hg pollution in runoff were analyzed. Results show that the pollution of different Hg species is serious, and total Hg(THg), dissolved Hg(HgD)and particulate Hg(HgP)are found to be in the range of 0.173 to 3.347, 0.069 to 0.862, and 0.104 to 2.485 μg/L, respectively. The average EMC value of THg exceeds the Ⅴ class limitation value of “Quality standards of surface water environment(GB 3838—2002)” of China. Hg in runoff mainly exists in particulate form, and the concentrations of Hgre(0.250 to 2.821 μg/L)are far more than those of Hg0(0.023 to 0.215 μg/L)and Hg2+(0.026 to 0.359 μg/L). The order of rainfall characteristics impacting on Hg pollution in runoff is dry periods> runoff time> duration of rainfall> storm intensity> rainfall.
- 为评估降雨路面径流汞(Hg)污染状况, 对南京绕城高速公路马群段11场降雨路面径流进行了监测, 分析了汞(Hg)的事件平均浓度(EMC)以及降雨特性对径流中Hg污染的影响.结果表明, 不同赋存状态的Hg的污染程度均较为严重, 总Hg(THg)、溶解态汞(HgD)和颗粒态汞(HgP)含量分别为0.173~ 3.347, 0.069~0.862和0.104~2.485 μg/L.THg的EMC超过了中国《地表水环境质量标准(GB 3838—2002)》中5类水的限值.雨水径流中Hg主要以颗粒态存在, 络合态Hg(Hgre, 0.250~2.821 μg/L)的含量远大于挥发性Hg(Hg0, 0.023~0.215μg/L)和活性Hg(Hg2+, 0.026~0.359 μg/L).各种降雨特性对径流中Hg污染的影响顺序为前期晴天数>径流时间>降雨历时>降雨强度>降雨量.
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Memo
- Memo:
-
Biographies: Chen Ming(1986—), male, graduate; Fu Dafang(corresponding author), male, doctor, professor, fdf@seu.edu.cn.
Foundation item: The Priority Academic Program Development of Jiangsu Higher Education Institutions.
Citation: Chen Ming, Zheng Zhaohui, Fu Dafang, et al.Characteristics of Hg pollution in urban stormwater runoff in Nanjing city, China[J].Journal of Southeast University(English Edition), 2014, 30(2):158-163.[doi:10.3969/j.issn.1003-7985.2014.02.004]