Chemical Characteristics and Potential Sources of PM2.5 in Shahe City during Severe Haze Pollution Episodes in the Winter
文献类型：期刊论文
| 作者 | Liu, Xiaoyong; Pan, Xiaole; Wang, Zifa; He, Hong ; Wang, Dawei; Liu, Hang; Tian, Yu; Xiang, Weiling; Li, Jie
|
| 刊名 | AEROSOL AND AIR QUALITY RESEARCH
 |
| 出版日期 | 2020-12 |
| 卷号 | 20期号:12页码:2741-2753 |
| 关键词 | Air pollution Chemical composition North China Plain Potential source analysis |
| ISSN号 | 1680-8584 |
| 英文摘要 | In recent years, North China has suffered from severe air pollution. Hence, this study performed a comprehensive field experiment during Dec. 2017 in Shahe (114.5 degrees N, 36.85 degrees E), a typical industrial city in this region that is characterized by intensive NOx emission from the local glassmaking industry. During the study period, the mass concentration of the PM2.5 (fine particulate matter) averaged 121.6 +/- 91.8 mu g m(-3), whereas the mass concentrations of the nitrate and sulfate in the PM2.5 averaged 21.4 +/- 16.3 and 15.9 +/- 20.9 mu g m(-3), respectively. The high sulfate mass concentration primarily resulted from the oxidation of SO2, which was mainly due to gas-phase and heterogeneous reactions during low relative humidity (RH; 40%) and enhanced aqueous reactions during high RH (40%). In addition, because the nitrogen oxidation ratio (NOR) increased as the RH decreased during the day, the nitrate was largely generated through photochemical reactions. The mass concentrations of the optical organic carbon (OC), elemental carbon (EC), and water-soluble organic compounds (WSOCs) equaled 50.4 +/- 31.1, 5.8 +/- 4.4, and 12.8 +/- 10.1 mu gC m(-3), respectively, and applying the EC tracer method revealed that primary emissions contributed approximately 72% of the total OC. Furthermore, intense industrial activities were detected in a nearby area to the northeast, which potential source contribution function (PSCF) analysis identified as the main potential source area for PM2.5 during haze. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/44537]  |
| 专题 | 生态环境研究中心_大气污染控制中心 |
| 推荐引用方式 GB/T 7714 | Liu, Xiaoyong,Pan, Xiaole,Wang, Zifa,et al. Chemical Characteristics and Potential Sources of PM2.5 in Shahe City during Severe Haze Pollution Episodes in the Winter[J]. AEROSOL AND AIR QUALITY RESEARCH,2020,20(12):2741-2753. |
| APA | Liu, Xiaoyong.,Pan, Xiaole.,Wang, Zifa.,He, Hong.,Wang, Dawei.,...&Li, Jie.(2020).Chemical Characteristics and Potential Sources of PM2.5 in Shahe City during Severe Haze Pollution Episodes in the Winter.AEROSOL AND AIR QUALITY RESEARCH,20(12),2741-2753. |
| MLA | Liu, Xiaoyong,et al."Chemical Characteristics and Potential Sources of PM2.5 in Shahe City during Severe Haze Pollution Episodes in the Winter".AEROSOL AND AIR QUALITY RESEARCH 20.12(2020):2741-2753. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。