The semi-solid phase of atmospheric particles facilitates the formation of secondary brown carbon: possible contribution of ionic strength to Maillard-like reactions DOI

Jiali Xie,

Feixue Zheng,

Yusheng Zhang

et al.

Atmospheric Environment, Journal Year: 2024, Volume and Issue: unknown, P. 120991 - 120991

Published: Dec. 1, 2024

Language: Английский

Emission Characteristics, Environmental Impacts, and Health Risks of Volatile Organic Compounds from Asphalt Materials: A State-of-the-Art Review DOI
Jue Li,

Yurong Qin,

Xinqiang Zhang

et al.

Energy & Fuels, Journal Year: 2024, Volume and Issue: 38(6), P. 4787 - 4802

Published: Feb. 29, 2024

The emission of volatile organic compounds (VOCs) from asphalt during construction processes presents substantial risks to human health and the environment. To advance sustainable transportation development, this review offers a comprehensive study methods for characterization, release characteristics, influencing factors, mechanisms, environmental impacts VOCs. At present, research has been conducted on characterization methods, component risks. findings indicate that gas chromatography–mass spectrometry is most method characterizing Asphalt VOCs mainly comprise alkanes, aromatics, aliphatic hydrocarbons. Factors including temperature, source, ultraviolet radiation can all affect characteristics Elevated VOC levels contribute photochemical production ozone fine particulate matter, exacerbating air pollution climate change. Additionally, specific VOCs, benzene polycyclic aromatic hydrocarbons, pose humans. While progress achieved in current research, challenges persist quantifying assessing their risks, implementing effective mitigation technologies. address these challenges, future should focus establishing fingerprints, quantitative evaluation criteria, material innovation, optimization processes, exposure assessment, collaborative solution implementation.

Language: Английский

Citations

25
Wintertime fine aerosol particles composition and its evolution in two megacities of southern and northern China DOI
Yiling J. Cheng, Lu Chen, Hao Wu

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 914, P. 169778 - 169778

Published: Jan. 3, 2024

Language: Английский

Citations

5
Sources of PM2.5 exposure and health benefits of clean air actions in Shanghai DOI Creative Commons
Yixuan Gu, Daven K. Henze, Hong Liao

et al.

Environment International, Journal Year: 2025, Volume and Issue: 195, P. 109259 - 109259

Published: Jan. 1, 2025

Estimating PM

Language: Английский

Citations

0
Variations in polycyclic aromatic hydrocarbons concentrations and their contribution to aerosol optical depth during the COVID-19 outbreak: A study in Yokohama using generalized additive model DOI Creative Commons
Weidong Jing,

Kohei Nakano,

Ryosuke Mitani

et al.

Atmospheric Pollution Research, Journal Year: 2025, Volume and Issue: 16(8), P. 102547 - 102547

Published: April 16, 2025

Language: Английский

Citations

0
Characteristics of airborne bacteria over inland and coastal atmosphere influenced by systemic air mass in northern China DOI
Zhaowen Wang,

Rongbao Duan,

Qun He

et al.

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126429 - 126429

Published: May 1, 2025

Language: Английский

Citations

0
Substantial contribution of transported emissions to organic aerosol in Beijing DOI Creative Commons

Kaspar R. Daellenbach,

Jing Cai, Simo Hakala

et al.

Nature Geoscience, Journal Year: 2024, Volume and Issue: 17(8), P. 747 - 754

Published: Aug. 1, 2024

Haze in Beijing is linked to atmospherically formed secondary organic aerosol, which has been shown be particularly harmful human health. However, the sources and formation pathways of these aerosols remain largely unknown, hindering effective pollution mitigation. Here we have quantified aerosol via direct near-molecular observations central Beijing. In winter, arises mainly from fresh solid-fuel emissions originating both combustion aqueous processes, probably involving multiphase chemistry with aromatic compounds. The most severe haze combustion, transported Beijing-Tianjing-Hebei Plain rural mountainous areas west summer, increased fraction dominated by Xi'an-Shanghai-Beijing region, while contribution biogenic remains relatively small. Overall, identify main affecting Beijing, clearly extend beyond local Our results suggest that targeting key precursor emission sectors regionally may needed effectively mitigate pollution.

Language: Английский

Citations

3
Current challenges in the visibility improvement of urban Chongqing in Southwest China: From the perspective of PM2.5-bound water uptake property over 2015–2021 DOI

Yuhang Hao,

Yafeng Gou,

Zhenshuai Wang

et al.

Atmospheric Research, Journal Year: 2024, Volume and Issue: 300, P. 107215 - 107215

Published: Jan. 3, 2024

Language: Английский

Citations

2
Influence of ozone pollution on the mixing state and formation of oxygenated organics containing single particles DOI

Sulin Liu,

Suxia Yang,

Duanying Chen

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 926, P. 171880 - 171880

Published: March 26, 2024

Language: Английский

Citations

1
Measurement report: Size-resolved secondary organic aerosol formation modulated by aerosol water uptake in wintertime haze DOI Creative Commons

Jing Duan,

Ru‐Jin Huang,

Ying Wang

et al.

Atmospheric chemistry and physics, Journal Year: 2024, Volume and Issue: 24(13), P. 7687 - 7698

Published: July 5, 2024

Abstract. This study investigated the potential effects of changes in inorganics on aerosol water uptake and, thus, secondary organic (SOA) formation wintertime haze based size-resolved measurements non-refractory fine particulate matter (NR-PM2.5) Xi'an, northwestern China. The composition inorganic showed significant winter 2018–2019 compared to 2013–2014, shifting from a sulfate-rich profile nitrate-rich profile. In particular, fraction sulfate and chloride decreased, but that nitrate increased entire size range, while ammonium mainly at larger particle sizes. These thus resulted size-dependent evolution uptake. Increased was observed most cases, associated with enhanced contributions both ammonium, highest increase ratio reaching 5 %–35 % sizes higher relative humidity (RH>70 %). non-negligible influence also emphasized. random forest analysis coupled Shapley additive explanation algorithm (SHAP) further an importance impacting SOA formation. Aerosol exhibited contribution during 2018–2019, particularly SHAP value alongside levels water, indicating implies majority high RH might facilitate efficient aqueous-phase highlights key role as medium link organics their multiphase processes. As challenges improve China's air quality remain because plays increasing pollution, these results provide insight into characteristics offer guidance for future controls.

Language: Английский

Citations

0
Mixing state and evolutionary mechanism of oxalic acid homologs in Liaocheng, East China: Insights from seasonal and hourly observations DOI

Jiangkai Ma,

Jingjing Meng, Yanhui Wang

et al.

Particuology, Journal Year: 2024, Volume and Issue: 95, P. 223 - 234

Published: Sept. 25, 2024

Language: Английский

Citations

0