Growing Urbanization and the Impact on Fine Particulate Matter (PM2.5) Dynamics

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 城市与区域生态国家重点实验室

	Growing Urbanization and the Impact on Fine Particulate Matter (PM2.5) Dynamics
	Han, Lijian; Zhou, Weiqi; Li, Weifeng
刊名	SUSTAINABILITY
	2018-06-01
卷号	10 期号:6 页码:-
关键词	air pollution China India urbanization strategy smart growth PM2.5 scaling approach
ISSN号	2071-1050
文献子类	Article
英文摘要	Changes in urban air quality and its relationship with growing urbanization provide an important insight into urban development strategies. Thus, we collected remotely sensed PM2.5 concentrations, as well as urban population datasets, and analyzed the scaling relationship between changes in urban population and concentrations of PM2.5. The majority of large cities in North America and Europe had PM2.5 concentrations which decreased significantly. Only 2.0% of large cities in the U.S. were found to have significant positive trends. PM2.5 concentration trends of less than 0.5 g/m(3)year were found in all large cities of Africa and Latin America. However, PM2.5 concentration trends of more than 1.0 g/m(3)year were found in 56.7% of the large cities in Asia, where only 2.3% of the cities in China were found with significant negative trends, and no cities in India were found with significant negative trends. Large cities in Asia were found with contributions of 4.12 +/- 4.27 g/m(3)year per million people, particularly large cities in China (5.40 +/- 4.80 g/m(3)year per million people) and India (4.07 +/- 3.07 g/m(3)year per million people). Significant negative or positive relationships were obtained between PM2.5 trends and population change rates in large cities of North America (R-2 = 0.9195, p < 0.05) or Europe (R-2 = 0.9161, p < 0.05). Moreover, a significant inverse U-type relationship (R-2 = 0.8065, p < 0.05) was found between PM2.5 trends and population change rates in large cities of Asia. In addition, the positive or negative relationships between the trends in population and PM2.5 were obtained in typical low- and mid-income countries (e.g., China and India) or high-income countries (e.g., USA), respectively.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40563]
专题	生态环境研究中心_城市与区域生态国家重点实验室
推荐引用方式 GB/T 7714	Han, Lijian,Zhou, Weiqi,Li, Weifeng. Growing Urbanization and the Impact on Fine Particulate Matter (PM2.5) Dynamics[J]. SUSTAINABILITY,2018,10(6):-.
APA	Han, Lijian,Zhou, Weiqi,&Li, Weifeng.(2018).Growing Urbanization and the Impact on Fine Particulate Matter (PM2.5) Dynamics.SUSTAINABILITY,10(6),-.
MLA	Han, Lijian,et al."Growing Urbanization and the Impact on Fine Particulate Matter (PM2.5) Dynamics".SUSTAINABILITY 10.6(2018):-.