文献类型：期刊文献

英文题名：Seasonal and long-term trends of sulfate, nitrate, and ammonium in PM2.5 in Beijing: implication for air pollution control

作者：Han, Xiaokun[1]; Guo, Qingjun[2,3]; Lang, Yunchao[1]; Li, Siliang[1]; Li, Ying[4]; Guo, Zhaobing[5]; Hu, Jian[6]; Wei, Rongfei[2]; Tian, Liyan[2]; Wan, Yingxin[7]

第一作者：Han, Xiaokun

机构：[1] Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China; [2] Center for Environmental Remediation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, China; [3] College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China; [4] CEA Key Laboratory of Earthquake Prediction [Institute of Earthquake Forecasting], China Earthquake Administration, Beijing, 100036, China; [5] School of Environmental Science and Engineering, Nanjing University of Information Science and Technology, Nanjing, 210044, China; [6] Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China; [7] College of Biochemical Engineering, Beijing Union University, Beijing, 100191, China

第一机构：Institute of Surface-Earth System Science, Tianjin University, Tianjin, 300072, China

通讯机构：[3]College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, 100049, China

年份：2020

卷号：27

期号：19

起止页码：23730-23741

外文期刊名：Environmental Science and Pollution Research

收录：EI(收录号：20242716622456);Scopus(收录号：2-s2.0-85083785374)

语种：英文

外文关键词：Air navigation - Air quality - Developing countries - Emission control - Nitrates - Particles (particulate matter) - Risk assessment - Sulfur compounds

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 PM2.5 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 PM2.5 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 PM2.5 levels (~ 11.2?μg/m3 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 PM2.5 concentration and reduce health risk from particulate pollution. ? 2020, Springer-Verlag GmbH Germany, part of Springer Nature.