The Isotopic Characteristics, Sources, and Formation Pathways of Atmospheric Sulfate and Nitrate in the South China Sea DOI Open Access
Yongyun Zhang, Min Gao, Xi Sun

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(20), P. 8733 - 8733

Published: Oct. 10, 2024

The South China Sea (SCS) is a crucial region for studying atmospheric aerosols, given its unique geographical location and the interaction of various natural anthropogenic sources. In this study, we measured isotopic characteristics sulfate nitrate in PM2.5 utilized Bayesian isotope mixing model (SIAR) to analyze their sources formation pathways. Sulfur values (δ34S-SO42−) were 8.7 ± 1.8‰, while nitrogen oxygen (δ15N-NO3− δ18O-NO3−) −0.9 2.4‰ 52.3 7.3‰, respectively. results revealed that was primarily influenced by marine biogenic sulfur emissions (mostly dimethyl sulfide, DMS), fossil fuel combustion, biomass burning. Nitrate dominated NO2 + •OH pathway (accounting 69.8–85.7%), with significant contributions from vehicle emissions, burning, lightning. These findings offer key insights into complex interactions between aerosol SCS, contributing broader understanding chemistry.

Language: Английский

Characteristics of inland ship and the effect of combined diesel oxidation catalyst (DOC) and diesel particulate filter (DPF) aftertreatment system on their pollutant emissions DOI

Thi-Hieu Le,

Zhi-Ping Hsu,

Cindy Soo Yun Tan

et al.

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126460 - 126460

Published: May 1, 2025

Language: Английский

Citations

0
The Isotopic Characteristics, Sources, and Formation Pathways of Atmospheric Sulfate and Nitrate in the South China Sea DOI Open Access
Yongyun Zhang, Min Gao, Xi Sun

et al.

Sustainability, Journal Year: 2024, Volume and Issue: 16(20), P. 8733 - 8733

Published: Oct. 10, 2024

The South China Sea (SCS) is a crucial region for studying atmospheric aerosols, given its unique geographical location and the interaction of various natural anthropogenic sources. In this study, we measured isotopic characteristics sulfate nitrate in PM2.5 utilized Bayesian isotope mixing model (SIAR) to analyze their sources formation pathways. Sulfur values (δ34S-SO42−) were 8.7 ± 1.8‰, while nitrogen oxygen (δ15N-NO3− δ18O-NO3−) −0.9 2.4‰ 52.3 7.3‰, respectively. results revealed that was primarily influenced by marine biogenic sulfur emissions (mostly dimethyl sulfide, DMS), fossil fuel combustion, biomass burning. Nitrate dominated NO2 + •OH pathway (accounting 69.8–85.7%), with significant contributions from vehicle emissions, burning, lightning. These findings offer key insights into complex interactions between aerosol SCS, contributing broader understanding chemistry.

Language: Английский

Citations

1