Work

Characterization and source apportionment of water-soluble ion pollution in PM10 of typical cities in northern China

Year: 2024

Type: article

Abstract: Summary Understanding the characteristics and sources of water-soluble ion pollution in particulate matter is crucial for preventing, controlling, and managing air pollution. In this study, we analyzed the pollution characteristics and sources of water-soluble ions in PM10 in three typical cities in northern China. Our results showed an increase in both PM10 and total water-soluble ions during the pollution period in all three cities. Wind speed was a key meteorological factor affecting the change in atmospheric aerosol concentration in Dunhuang and Zhongwei. Dunhuang, Zhongwei, and Dalian were affected by natural sources such as dust, but also by human sources such as coal combustion, industrial activities, transportation emissions, and biomass burning. This study is of great significance for understanding the sea-land air interactions and the transport, diffusion, and sources of water-soluble ions, and for the prevention, control, and management of air pollution in global desert regions and coastal areas.

Source: iScience

DOI: 10.1016/j.isci.2024.110891

Authors: Guojun Han, Mingzhu He, Zhiheng Du, Nanxin Wei, Haiping Luo

Institutions: Gansu Agricultural University, Chinese Academy of Sciences, Northwest Institute of Eco-Environment and Resources, Lanzhou Jiaotong University

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

SDGs: Clean water and sanitation, Climate action

Open Access status: gold

Estimated APC paid: $3,150