Work

Relationships Among Atmospheric Suspended Particulates with Different Sizes: A Case Study of Chongqing City

Year: 2025

Type: article

Abstract: The current study predicts that there would be scaling relationships among atmospheric suspended particulate materials (PMs) with different diameters. Through sampling the PM concentration over different types of land use in municipal areas in Chongqing, analyzing the respective data of independent concentrations of PMs varying in sizes (iPMs), and testing the predictions, it is found that: 1) there are generally negative relationships between falling dust of large particulate size (diameter >10 μm) and floating dust of small ones (diameter ≤10 μm); 2) there are positive correlations among the fine iPMs of iPM10, iPM2.5, and iPM1; 3) there is a disproportionately increase between the iPMs compared to the respective control; 4) there is a declining-and-rising tendency between the PMs reduction rate and the increase of PMs along a particulate-size-decline gradient. The results of this study may contribute to understand the law of the interactions of PMs with different particle sizes in the atmosphere, and lay a theoretical foundation for the elimination on the atmospheric suspended pollutants.

Source: Atmosphere

DOI: 10.3390/atmos16050609

Authors: yan gui, Likai Lin

Institutions: Sichuan University of Arts and Science, Sichuan Technology and Business University, Xihua University, Southwest University

Language: English

Topic: Atmospheric chemistry and aerosols

Subfield: Atmospheric Science

Field: Earth and Planetary Sciences

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

Funder: Sichuan University