Primary organic gas emissions from gasoline vehicles in China: Factors, composition and trends

Qi, Lijuan; Zhao, Junchao; Li, Qiwei; Su, Sheng; Lai, Yitu; Deng, Fusheng; Man, Hanyang; Wang, Xiaotong; Shen, Xiue; Lin, Yuping; Ding, Yan; Liu, Huan

doi:10.1016/j.envpol.2021.117984

Cited by 36 publications

(23 citation statements)

References 56 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The calculation of C* was exhibited in Supporting Information Section S3. The measured compositional data were collected from our group and several published studies, including gasoline vehicles, diesel vehicles, , non-road construction machinery, ships, and aircraft . The IVOC-VBS scheme considered the aromatics and aliphatic compositions of IVOCs (Figure ).…”

Section: Methodsmentioning

confidence: 99%

Comprehensive Assessment for the Impacts of S/IVOC Emissions from Mobile Sources on SOA Formation in China

Zhao

et al. 2022

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

Semivolatile/intermediate-volatility organic compounds (S/IVOCs) from mobile sources are essential SOA contributors. However, few studies have comprehensively evaluated the SOA contributions of S/IVOCs by simultaneously comparing different parameterization schemes. This study used three SOA schemes in the CMAQ model with a measurement-based emission inventory to quantify the mobile source S/IVOC-induced SOA (MS–SI-SOA) for 2018 in China. Among different SOA schemes, SOA predicted by the 2D-VBS scheme was in the best agreement with observations, but there were still large deviations in a few regions. Three SOA schemes showed the peak value of annual average MS–SI-SOA was up to 0.6 ± 0.3 μg/m3. High concentrations of MS–SI-SOA were detected in autumn, while the notable relative contribution of MS–SI-SOA to total SOA was predicted in the coastal areas in summer, with a regional average contribution up to 20 ± 10% in Shanghai. MS–SI-SOA concentrations varied by up to 2 times among three SOA schemes, mainly due to the discrepancy in SOA precursor emissions and chemical reactions, suggesting that the differences between SOA schemes should also be considered in modeling studies. These findings identify the hotspot areas and periods for MS–SI-SOA, highlighting the importance of S/IVOC emission control in the future upgrading of emission standards.

show abstract

Section: Methodsmentioning

confidence: 99%

Comprehensive Assessment for the Impacts of S/IVOC Emissions from Mobile Sources on SOA Formation in China

Zhao

et al. 2022

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…(d-f) SOA productions, (g-i) SOA-to-THC ratios, and (j-l) SOA-to-CO ratios measured from vehicle exhaust with China Ⅳ, China Ⅴ, and China Ⅵ emission standards under different driving conditions. The speed (km h -1 ) is divided into [0, 10), [10,20), [20,30), [30,40), [40,50), [60,70)…”

Section: Soa Production In Different Speed and Acceleration Binsmentioning

confidence: 99%

Rapid oxidation of gasoline exhausts reveals marked impacts of transient conditions on potential of secondary organic aerosol production

Peng

Zhang

Song

et al. 2023

Preprint

View full text Add to dashboard Cite

Vehicle emission is a major source of atmospheric secondary organic aerosols (SOA). Driving condition is a critical influencing factor for vehicular SOA production, but few studies have revealed SOA production dependence on the rapidly-changing real-world driving conditions. Here, a fast-response oxidation flow reactor system is developed and deployed to quantify the SOA formation potential under transient driving conditions. Results show that the SOA potential varies by orders of magnitude, e.g., 20-1500 mg kg-fuel-1 and 12–155 mg kg-fuel-1 for China V and China VI vehicles, respectively. High speed, acceleration, and deceleration are found to considerably promote SOA production due to higher organic gaseous emissions caused by unburned fuel emission or incomplete combustion. In addition, China VI vehicles significantly reduce SOA potential, yield, and acceleration and deceleration peaks. Our study provides experimental insight into vehicular SOA formation under transient driving conditions, which would benefit high-time-resolved SOA simulations in the urban atmosphere.

show abstract

“…A previous study found similar concentration variation patterns of pristane (Pr), phytane (Ph), and primary IVOCs in Pasadena, suggesting that the major IVOC sources were likely petroleum‐related (Zhao et al., 2014). Recently, a number of studies have been conducted to measure IVOC emissions in typical combustion sources, such as biomass burning and on‐ and off‐road fossil‐fueled engines (Drozd et al., 2019; Fang, Huang, et al., 2021; Huang et al., 2018; Lu et al., 2019; Qi et al., 2019, 2021; Qian et al., 2021; Tang et al., 2021; Zhao et al., 2015; Zhao, Nguyen, et al., 2016). To date, however, the quantifiable results of different primary sources that contribute to ambient IVOCs are quite scarce.…”

Section: Introductionmentioning

confidence: 99%

Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions

et al. 2022

View full text Add to dashboard Cite

Secondary organic aerosols (SOAs), which can account for 20%-95% of organic aerosols (OAs), significantly impact the global climate, regional air quality, and human health (Huang et al., 2014;Pöschl, 2005;Zhang et al., 2007). SOA remains the least understood composition of OA, and atmospheric models that only consider volatile organic compounds (VOCs) as SOA precursors significantly underestimate the SOA formed both in field observations and chamber experiments (

show abstract

Primary organic gas emissions from gasoline vehicles in China: Factors, composition and trends

Cited by 36 publications

References 56 publications

Comprehensive Assessment for the Impacts of S/IVOC Emissions from Mobile Sources on SOA Formation in China

Comprehensive Assessment for the Impacts of S/IVOC Emissions from Mobile Sources on SOA Formation in China

Rapid oxidation of gasoline exhausts reveals marked impacts of transient conditions on potential of secondary organic aerosol production

Intermediate‐Volatility Organic Compounds Observed in a Coastal Megacity: Importance of Non‐Road Source Emissions

Contact Info

Product

Resources

About