Policy-driven variations in oxidation potential and source apportionment of PM2.5 in Wuhan, central China DOI

Mengjie Deng,

Danhong Chen, Gan Zhang

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 853, P. 158255 - 158255

Published: Aug. 23, 2022

Language: Английский

Oxidative potential associated with water-soluble components of PM2.5 in Beijing: The important role of anthropogenic organic aerosols DOI
Qing Yu, Jing Chen,

Weihua Qin

et al.

Journal of Hazardous Materials, Journal Year: 2022, Volume and Issue: 433, P. 128839 - 128839

Published: April 4, 2022

Language: Английский

Citations

47
Outdoor Health Risk of Atmospheric Particulate Matter at Night in Xi’an, Northwestern China DOI

Dyussenova Ainur,

Qingcai Chen, Tong Sha

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(25), P. 9252 - 9265

Published: June 13, 2023

The deterioration of air quality via anthropogenic activities during the night period has been deemed a serious concern among scientific community. Thereby, we explored outdoor particulate matter (PM) concentration and contributions from various sources day in winter spring 2021 megacity, northwestern China. results revealed that changes chemical compositions PM (motor vehicles, industrial emissions, coal combustion) at lead to substantial toxicity, oxidative potential (OP), OP/PM per unit mass, indicating high toxicity exposure risk nighttime. Furthermore, higher environmentally persistent free radical (EPFR) its significant correlation with OP were observed, suggesting EPFRs cause reactive oxygen species (ROS) formation. Moreover, noncarcinogenic carcinogenic risks systematically explained spatialized children adults, highlighting intensified hotspots epidemiological researchers. This better understanding day–night-based formation pathways their hazardous impact will assist guide measures diminish reduce disease led by pollution.

Language: Английский

Citations

32
Key drivers of the oxidative potential of PM2.5 in Beijing in the context of air quality improvement from 2018 to 2022 DOI Creative Commons
Jinwen Li,

Chenjie Hua,

Li Ma

et al.

Environment International, Journal Year: 2024, Volume and Issue: 187, P. 108724 - 108724

Published: May 1, 2024

The mass concentration of atmospheric particulate matter (PM) has been continuously decreasing in the Beijing-Tianjin-Hebei region. However, health endpoints do not exhibit a linear correlation with PM concentrations. Thus, it is urgent to clarify prior toxicological components further improve air quality. In this study, we analyzed long-term oxidative potential (OP) water-soluble PM2.5, which generally considered more effective assessing hazardous exposure Beijing from 2018 2022 based on dithiothreitol assay and identified crucial drivers OP PM2.5 online monitoring pollutants, receptor model, random forest (RF) model. Our results indicate that dust, traffic, biomass combustion are main sources Beijing. complex interactions dust particles, black carbon, gaseous pollutants (nitrogen dioxide sulfur dioxide) factors driving evolution, particular, leading abnormal rise 2022. data shows higher observed winter spring compared summer autumn. diurnal variation characterized by declining trend 0:00 14:00 an increasing 23:00. spatial was as lower than Shijiazhuang, while Zhenjiang Haikou, primarily influenced distribution carbon. significance identifying key influencing provide new insights for advancing quality improvement efforts focus safeguarding human

Language: Английский

Citations

9
Diurnal evolutions and sources of water-soluble chromophoric aerosols over Xi'an during haze event, in Northwest China DOI Creative Commons
Qingcai Chen, Xiaoyu Hua, Jinwen Li

et al.

The Science of The Total Environment, Journal Year: 2021, Volume and Issue: 786, P. 147412 - 147412

Published: April 29, 2021

Language: Английский

Citations

49
Seasonal and diurnal variation of PM2.5 HULIS over Xi'an in Northwest China: Optical properties, chemical functional group, and relationship with reactive oxygen species (ROS) DOI
Tian Zhang, Shasha Huang,

Diwei Wang

et al.

Atmospheric Environment, Journal Year: 2021, Volume and Issue: 268, P. 118782 - 118782

Published: Oct. 12, 2021

Language: Английский

Citations

45
Optical properties, molecular characterizations, and oxidative potentials of different polarity levels of water-soluble organic matters in winter PM2.5 in six China's megacities DOI
Tian Zhang, Zhenxing Shen, Shasha Huang

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 853, P. 158600 - 158600

Published: Sept. 8, 2022

Language: Английский

Citations

31
A short review on environmental distribution and toxicity of the environmentally persistent free radicals DOI

Jing-Feng Yi,

Ze-Zhao Lin,

Xing Li

et al.

Chemosphere, Journal Year: 2023, Volume and Issue: 340, P. 139922 - 139922

Published: Aug. 22, 2023

Language: Английский

Citations

21
Key toxic components and sources affecting oxidative potential of atmospheric particulate matter using interpretable machine learning: Insights from fog episodes DOI
Ruiyu Li, Caiqing Yan,

Qingpeng Meng

et al.

Journal of Hazardous Materials, Journal Year: 2023, Volume and Issue: 465, P. 133175 - 133175

Published: Dec. 7, 2023

Language: Английский

Citations

20
Occurrence and sources of chromophoric organic carbon in fine particulate matter over Xi'an, China DOI Creative Commons
Jinwen Li, Qingcai Chen, Xiaoyu Hua

et al.

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 725, P. 138290 - 138290

Published: April 4, 2020

Language: Английский

Citations

45
ROS-generation potential of Humic-like substances (HULIS) in ambient PM2.5 in urban Shanghai: Association with HULIS concentration and light absorbance DOI

Xiaoya Xu,

Xiaohui Lu, Xiang Li

et al.

Chemosphere, Journal Year: 2020, Volume and Issue: 256, P. 127050 - 127050

Published: May 12, 2020

Language: Английский

Citations

42