Characteristics of Ambient Air Quality in the Central Urban Area of Western Guizhou in the Past Five Years

• 作者: Changwen CHEN Kai XU Lijuan LIU Shihua JIANG Zaixiang CHI Zijiang YANG
• 来源期刊: 气象与环境研究:英文版
• 学科: 经济
• 关键词: Air quality Pollution concentration Spearman s rank correlation coefficient Change trends
• 年，卷（期）: qxyhjyjywb_2020,（6）
• 页码范围: 23-30
• 页数: 8页
• 分类号: F42

摘要

Air is an important condition for human activities and survival,and its quality is closely related to the quality of life and level of health for the people.In recent years,the problem caused by air quality has become one of the main problems that endanger human health and restrict economic development,which has been widely concerned.In this paper,the air quality status and its changing trend were analyzed by using the methods of the comprehensive index of ambient air quality and Spearman s rank correlation coefficient,based on the hourly pollutant concentration data of five national ambient air quality monitoring stations in the central urban area of Liupanshui City,Guizhou Province from January 1,2015 to December 31,2019.The results showed that the concentration of air pollutants in the atmosphere in the past five years showed a downward trend in the central urban area of Liupanshui City.During 2018-2019,the air quality has been up to the standard for two consecutive years,and it was developing to a higher quality direction.The air quality was better in summer half year than in winter half year.In one year,the air quality was the best in June and the worst in February.The air quality was the best at 07:00 and the worst at 21:00 every day.The air quality in the east and the west of the city was better than that in the middle.In most years,the activities,making and burning paper to resemble money as an offering sacrifices to gods or ancestors in Zhongyuan Festival,caused serious pollution.