Variations in dust contributions to air quality impairment in a temperate grassland of Inner Mongolia, China

International Conference on Energy Engineering and Environmental Protection 2016

能源学;生态环境科学

Zhang, Baolin^1 ; Guan, Chunzhu^1 ; Zhao, Junling^1 ; Li, Jiannan^1

College of Chemistry and Environmental Sciences, Inner Mongolia Normal University, Hohhot

010020, China^1

关键词: Developing cities;    Long-term trend;    Quality impairment;    Seasonal patterns;    Temperate grasslands;    Temporal coherency;    Visibility impairment;    Visibility reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/52/1/012049/pdf
DOI  :  10.1088/1742-6596/52/1/012049

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Dust associated visibility impairment is the most noticeable air pollution phenomena, has important implications regarding air quality in developing cities. We integrated the commonly reported visibility with remote sensing, found that dust emission tended to decrease over Xilingol grassland. The temporal coherency between dust event and visibility reduction demonstrated dust was an important factor responsible for air quality impairment, but the differences in seasonal patterns and long-term trends among stations manifested some drops in visibility couldn't be solely attributed to dust activity. It is urgent to conclude the causes of visibility reduction in developing cities susceptible to dust impact in recent years.