AUTHOR=Han Li , Han Meng , Wang Yiwen , Wang Hua , Niu Jiqiang 

TITLE=Spatial and temporal characteristic of PM2.5 and influence factors in the Yellow River Basin

JOURNAL=Frontiers in Public Health

VOLUME=Volume 12 - 2024

YEAR=2024

URL=https://www.frontiersin.org/journals/public-health/articles/10.3389/fpubh.2024.1403414

DOI=10.3389/fpubh.2024.1403414

ISSN=2296-2565

ABSTRACT=China's economy has experienced rapid growth since the reform and opening up; however, it has also brought about serious environmental pollution issues. The Yellow River Basin, stretching across central and eastern China, serves as a significant ecological barrier and a pivotal economic development zone, contributing significantly to ecological protection and the nation's high-quality development. The Yellow River Basin has been instrumental in advancing ecological preservation and fostering national high-quality development. However, since the advent of China's reform and opening-up policies, the basin has faced severe environmental pollution issues. This paper partitions the Yellow River Basin using remote sensing data from 1998 to 2019 and examines its spatial and temporal distribution characteristics, employing spatial autocorrelation methods. This study leverages remote sensing data from 1998 to 2019. As per the "Basin Scope and Its Historical Changes" published by the Yellow River Conservancy Commission of the Ministry of Water Resources, the Yellow River Basin is categorized into upstream, midstream, and downstream regions for analysis of their spatial and temporal distribution traits using spatial autocorrelation methods. Additionally, we employed probes to study the effects of 10 factors, including mean surface temperature and air pressure, on PM2.5. The study findings reveal that (1)the annual average concentration of PM2.5 in the Yellow River Basin exhibited a fluctuating trend from 1998 to 2019, initially increasing, then decreasing, followed by another increase before ultimately declining. (2)The air quality in the Yellow River Basin is generally poor, making it challenging for areas with low PM2.5 levels to be widespread. The air quality in the Yellow River Basin is relatively poor, making it challenging for large-scale areas with low PM2.5 levels to occur.