Haze variation in valley region its affecting factors

3rd International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Liu, Yinge^1 ; Zhao, Aling^1 ; Wang, Yan^1 ; Wang, Shaoxiong^1 ; Dang, Caoni^1

Key Laboratory of Disaster Monitoring and Mechanism Simulating in Shaanxi Province, College of Geography and Environment, Baoji University of Arts and Sciences, Baoji

721013, China^1

关键词: Affecting factors;    Air pollution index;    Correlation analysis;    Environmental monitor;    Least squares methods;    Meteorological observation;    Negative correlation;    Temporal and spatial;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/113/1/012030/pdf
DOI  :  10.1088/1755-1315/113/1/012030

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The haze has a great harm on the environment and human health. Based on the daily meteorological observation data including visibility, relative humidity, wind speed, temperature, air pollution index and weather record of Baoji region in China, and using least squares method, wavelet and correlation analysis method, the temporal and spatial characteristics of haze were analyzed. While the factors affecting the haze change were discussed. The results showed that the haze mainly occurs in plain areas, and in hilly areas and mountain the haze frequency is relatively small. Overall the annual average haze is decreasing, especially in winter and spring the reduction trend of haze is most obvious, however, in summer haze is increasing. The haze has a 5-year short period and 10-year and 15-year long-term cycles change. Moreover, there was a significant negative correlation between temperature and wind speed with haze, while the relative humidity was significantly positively correlated with haze. These studies provide the basis for atmospheric environmental monitor and management.