| 河北及周边地区霾污染特征的模拟研究 |
| |
| 引用本文： | 王丽涛,潘雪梅,郑佳,程丹丹,魏巍. 河北及周边地区霾污染特征的模拟研究[J]. 环境科学学报, 2012, 32(4): 925-931 |
| |
| 作者姓名： | 王丽涛 潘雪梅 郑佳 程丹丹 魏巍 |
| |
| 作者单位： | 1. 河北工程大学城市建设学院环境工程系,邯郸,056038
2. 重庆市固体废物管理中心,重庆,400015 |
| |
| 基金项目： | 国家自然科学基金项目(No. 41105105);河北省自然科学基金项目(No. D2011402019) |
| |
| 摘 要： | 应用MM5-Models-3/CMAQ空气质量模拟系统对河北及周边地区进行了区域尺度的模拟,并选取石家庄、邢台、北京、天津、太原、郑州6个代表性城市分析了该地区霾污染特征.首先,通过气象观测数据对2001—2010年10年间的霾天气进行了识别,就统计结果来看,该地区霾污染的季节变化非常显著,冬季最为严重,其次是夏秋季;5月份的发生频率则最低,其次是4月和6月.选取霾污染较为严重的2007年12月进行了模拟,在模拟时段内,霾日的平均PM2.5浓度是非霾日的1.6～3.1倍,霾的发生有很明显的区域同步性.霾日PM2.5的成分也有显著变化,硫酸盐、硝酸盐等二次颗粒物的百分比含量有明显的增加,说明该地区霾的出现与二次颗粒物的形成有非常密切的关系.
|
| 关 键 词： | 霾 CMAQ 能见度 河北 细微颗粒物 |
| 收稿时间： | 2011-06-20 |
| 修稿时间： | 2011-07-22 |
A modeling study of the regional haze over Hebei and surrounding areas |
| |
| WANG Litao,PAN Xuemei,ZHENG Ji,CHENG Dandan and WEI Wei. A modeling study of the regional haze over Hebei and surrounding areas[J]. Acta Scientiae Circumstantiae, 2012, 32(4): 925-931 |
| |
| Authors: | WANG Litao PAN Xuemei ZHENG Ji CHENG Dandan WEI Wei |
| |
| Affiliation: | Department of Environmental Engineering, School of City Construction, Hebei University of Engineering, Handan 056038;Department of Environmental Engineering, School of City Construction, Hebei University of Engineering, Handan 056038;The Solid Waste Management Center of Chongqing, Chongqing 400015;Department of Environmental Engineering, School of City Construction, Hebei University of Engineering, Handan 056038;Department of Environmental Engineering, School of City Construction, Hebei University of Engineering, Handan 056038 |
| |
| Abstract: | MM5-Models-3/CMAQ air quality modeling system was applied to simulate the regional air pollution over Hebei and surrounding areas. Six cities, including Shijiazhuang, Xingtai, Beijing, Tianjin, Taiyuan and Zhengzhou, were chosen to analyze the characteristics of the regional haze in this area. First, the hazy days were identified for the ten years from 2001 to 2010. It was found that the haze occurrence showed clear seasonal variations. The haze pollution was the most serious in wintertime, followed by summer and autumn. The lowest frequencies appeared in May, then April and June. During the modeling period (Dec. 2007), the average PM2.5 concentrations in hazy days were 1.6~3.1 times of those in non-hazy days, and the occurrence of the hazy days in the six cities showed very clear regionally synchronous characteristics. The compositions of PM2.5 in hazy days showed obvious differences as well. The concentrations of secondary particles such as sulfate and nitrate had a distinct increase in haze days, indicating that the secondary particles might be an important reason for the formation of the regional haze over Hebei and surrounding areas. |
| |
| Keywords: | haze CMAQ visibility Hebei PM2.5 |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境科学学报》浏览原始摘要信息 |
|
点击此处可从《环境科学学报》下载全文 |
|
