Seasonal and long-term trends of sulfate, nitrate, and ammonium in PM(2.5)in Beijing: implication for air pollution control | |
Han, Xiaokun; Guo, Qingjun; Lang, Yunchao; Li, Siliang; Li, Ying; Guo, Zhaobing; Hu, Jian; Wei, Rongfei; Tian, Liyan; Wan, Yingxin | |
刊名 | ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH |
2020-07 | |
卷号 | 27期号:19页码:23730-23741 |
关键词 | PM2 5 Water-soluble ions Air pollution Beijing Pollution control |
ISSN号 | 0944-1344 |
英文摘要 | Particulate matter pollution in Beijing is a serious environmental problem. In response to this, the Beijing government has implemented comprehensive emission reduction measures in recent years. To assess the effectiveness of these measures, the seasonal and long-term trends in chemical compositions of PM(2.5)in Beijing have been studied based on daily samples collected from July 2015 to April 2016 and literature investigation (2000-2014). Results show that the concentrations of sulfate, nitrate, and ammonium in PM(2.5)have significant seasonal variations, which are related to the changes in meteorological conditions and emission intensities. In addition, the long-term data display that the concentrations of sulfate, nitrate, and ammonium have significantly decreased between 2013 and 2016, which are consistent with the reduction in PM(2.5)levels (~ 11.2 mu g/m(3)per year). The declines could not be interpreted by the meteorological factors. It suggests that the air pollution control measures in Beijing (2013-2016), especially the decreasing consumption of coal, can effectively decrease the mass concentration of fine particles. To further improve the air quality, similar measures should be adopted in the areas around Beijing. These air pollution control measures taken in Beijing can provide invaluable guidance for mega-cities in China and other developing countries to decrease their PM(2.5)concentration and reduce health risk from particulate pollution. |
内容类型 | 期刊论文 |
源URL | [http://ir.rcees.ac.cn/handle/311016/45125] |
专题 | 生态环境研究中心_土壤环境科学实验室 |
推荐引用方式 GB/T 7714 | Han, Xiaokun,Guo, Qingjun,Lang, Yunchao,et al. Seasonal and long-term trends of sulfate, nitrate, and ammonium in PM(2.5)in Beijing: implication for air pollution control[J]. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,2020,27(19):23730-23741. |
APA | Han, Xiaokun.,Guo, Qingjun.,Lang, Yunchao.,Li, Siliang.,Li, Ying.,...&Wan, Yingxin.(2020).Seasonal and long-term trends of sulfate, nitrate, and ammonium in PM(2.5)in Beijing: implication for air pollution control.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,27(19),23730-23741. |
MLA | Han, Xiaokun,et al."Seasonal and long-term trends of sulfate, nitrate, and ammonium in PM(2.5)in Beijing: implication for air pollution control".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 27.19(2020):23730-23741. |
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