The important role of nitrate in iron and manganese dissolution and sulfate formation in fine particles at a coastal site in Northern China DOI
Xiaomei Gao, Wenshuai Li, Xiaoyan Sun

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 921, С. 170318 - 170318

Опубликована: Янв. 25, 2024

Язык: Английский

Sustainable development reduces particulate matter emissions and mitigates aging’s cognitive impact DOI Creative Commons

Guiming Zhu,

Yanchao Wen,

Rongjin Du

и другие.

npj Climate and Atmospheric Science, Год журнала: 2025, Номер 8(1)

Опубликована: Май 9, 2025

Язык: Английский

Процитировано

0
Assessment of Secondary Sulfate Aqueous-Phase Formation Pathways in the Tropical Island City of Haikou: A Chemical Kinetic Perspective DOI Creative Commons
Wang Chen,

Li Luo,

Zifu Xu

и другие.

Toxics, Год журнала: 2024, Номер 12(2), С. 105 - 105

Опубликована: Янв. 26, 2024

Sulfate (SO42−) is an essential chemical species in atmospheric aerosols and plays influential role their physical–chemical characteristics. The mechanisms of secondary SO42− aerosol have been intensively studied air-polluted cities. However, few studies focused on cities with good air quality. One-year PM2.5 samples were collected the tropical island city Haikou, water-soluble inorganic ions, as well Fe Mn, analyzed. results showed that non-sea-salt (nss-SO42−) was dominant accounting for 40–57% total ions Haikou. S(IV)+H2O2 pathway main formation wintertime contributing to 57% formation. By contrast, 54% produced by S(IV)+Fe×Mn summer. In spring autumn, S(IV)+H2O2, S(IV)+Fe×Mn, S(IV)+NO2 pathways contributed equally ionic strength controlling parameter pathway, while pH identified a key factor mediates produce SO42−. This study contributes our understanding production under low concentrations but high percentages.

Язык: Английский

Процитировано

3
Can we reach consensus on the dominant sulfate formation pathway in China’s haze? DOI Creative Commons
Mingxu Liu, Yu Song, Tiantian Wang

и другие.

PNAS Nexus, Год журнала: 2024, Номер 3(8)

Опубликована: Июль 25, 2024

Abstract Atmospheric sulfate aerosols contribute significantly to air pollution and climate change. Sulfate formation mechanisms during winter haze events in northern China have recently received considerable attention, with more than 10 studies published high-impact journals. However, the conclusions from in-field measurements, laboratory studies, numerical simulations are inconsistent even contradictory. Here, we propose a physically based yet simple method clarify debate on dominant pathway. Based hazes evolving synoptic scale, first, characteristic rate is derived using Eulerian mass conservation equation constrained by situ observations. Then, this value treated as guideline determine pathway 0D chemical box model. Our observation-derived results establish linkage between experiments transport model simulations. A convergent understanding could therefore be reached China's wintertime haze. This universal can applied various conditions different secondary products.

Язык: Английский

Процитировано

3
Variations of inhalation risks during different heavy pollution episodes based on 3-year measurement of toxic components in size-segregated particles DOI

Qianqian Xue,

Xinyi Liu, Yingze Tian

и другие.

The Science of The Total Environment, Год журнала: 2023, Номер 880, С. 163234 - 163234

Опубликована: Апрель 4, 2023

Язык: Английский

Процитировано

8
The important role of nitrate in iron and manganese dissolution and sulfate formation in fine particles at a coastal site in Northern China DOI
Xiaomei Gao, Wenshuai Li, Xiaoyan Sun

и другие.

The Science of The Total Environment, Год журнала: 2024, Номер 921, С. 170318 - 170318

Опубликована: Янв. 25, 2024

Язык: Английский

Процитировано

2