Microwave Plasma Torch Desorption Ionization Mass Spectrometry for Chemical Characterization of Aromatic Secondary Organic Aerosol DOI

Xihe Yang,

Fengjian Chu,

J.C. Flores Quan

и другие.

Talanta, Год журнала: 2024, Номер 283, С. 127155 - 127155

Опубликована: Ноя. 4, 2024

Язык: Английский

Real-World Emissions and Formation Mechanism of IVOCs from Biodiesel-Fueled Agricultural Machinery DOI
Min Cui, Xiaoxiao Hou, Yuanxin Han

и другие.

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

The use of biodiesel as an alternative to diesel remains controversial because its potential impact on organic matter emissions. Herein, intermediate-volatility compounds (IVOCs) from five agricultural machines (AMs) using three types fuels (pure (B0), mixed with 5 and 20% (B5 B20), respectively) were collected analyzed. following results obtained: (1) Reasonable ratios reduced IVOC average emission factors IVOCs (EFIVOCs) B5-fueled AMs 485.8 ± 272.9 mg/kg fuel, 24.2% reduction that B0-fueled AMs. (2) chemical compositions secondary aerosol formation potentials (SOAFPs) changed during fueled by different blend ratios. highest EFIVOCs values for B5- B20-fueled within the Bin12 interval. Consequently, SOAFPs n-alkanes lower than those B0. (3) oxygen contents B5 B20 increased their combustion efficiency, long-chain carbons in pyrolyzed fragmented. However, high-viscosity inhibited engine performance more volatile was condensed adsorbed unburned fuel. In future, some technologies should be developed reduce viscosity biodiesel.

Язык: Английский

Процитировано

0
Contribution of Vehicular Evaporative S/IVOC emission to SOA formation in China DOI
Zhaoyang Fan, Yajun Wu, Yuwei Xie

и другие.

Atmospheric Environment, Год журнала: 2025, Номер unknown, С. 121128 - 121128

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
Intermediate and semi-volatility organic compounds (I/SVOCs) emission from Chinese vehicles: volatility distribution, influencing factors, and implication for SOA formation DOI
Yajun Wu,

Peiji Liu,

Yajie Wang

и другие.

Frontiers of Environmental Science & Engineering, Год журнала: 2025, Номер 19(5)

Опубликована: Апрель 2, 2025

Язык: Английский

Процитировано

0
Real world particle size distribution from vehicle fleet and implication on emission control DOI Creative Commons
Fuyang Zhang, Jianfei Peng, Jinsheng Zhang

и другие.

Опубликована: Апрель 28, 2025

Abstract Particle size distribution (PSD) of vehicular emissions is crucial for assessing their impacts on air quality and human health. However, real-world PSD data from vehicle fleets scarce. Here, we conducted a two-week tunnel measurement fleet emission. The estimated fleet-average emission factor particle number (PN) was 2.6 × 10 14 kg-fuel −1 . peaked in nucleation mode, indicating significant role volatile particles likely formed outside exhaust pipes. Diurnal variations PN correlated with traffic flow; however, high-emitting diesel vehicles, particularly those other cities, caused notable spikes black carbon during off-peak hours. Positive matrix factorization analysis confirms this critical vehicles also reveals the dominance non-exhaust PM 2.5 This study highlights importance stricter regulations measures to mitigate mode particles.

Язык: Английский

Процитировано

0
Emissions and potential tracer screening of semivolatile/intermediate-volatility organic compounds from urban vehicle fleets DOI Creative Commons
Yajun Wu, Jianfei Peng,

Xiaoguo Wang

и другие.

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

Опубликована: Май 17, 2025

Язык: Английский

Процитировано

0
Microwave Plasma Torch Desorption Ionization Mass Spectrometry for Chemical Characterization of Aromatic Secondary Organic Aerosol DOI

Xihe Yang,

Fengjian Chu,

J.C. Flores Quan

и другие.

Talanta, Год журнала: 2024, Номер 283, С. 127155 - 127155

Опубликована: Ноя. 4, 2024

Язык: Английский

Процитировано

1