Characterization of volatile organic compounds and the impacts on the regional ozone at an international airport

“…In addition, GC-MS with flame ionization detection (GC-MS/FID) was adopted at Taipei International Airport to measure the concentrations of 22 types of VOCs [ 22 ]. At Beijing Capital International Airport, GC-MS/FID was used to measure 53 types of aircraft VOCs [ 23 ], while at Beijing Shahe Airport, proton-transfer-reaction time-of-flight mass spectrometry (PTR-TOF-MS) was employed to measure 16 types of VOCs [ 24 ]. In addition, the GC method was used to measure seven types of VOCs at Shanghai Hongqiao Airport, namely, 1,3-butadiene, benzene, toluene, ethylbenzene, styrene, o-xylene, and m/p-xylene [ 25 ].…”

Section: Introductionmentioning

confidence: 99%

Characteristics of Volatile Organic Compounds Emitted from Airport Sources and Their Effects on Ozone Production

Chen,

Li,

Yun

et al. 2024

Toxics

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In recent years, commercial air transport has increased considerably. However, the compositions and source profiles of volatile organic compounds (VOCs) emitted from aircraft are still not clear. In this study, the characteristics of VOCs (including oxygenated VOCs (OVOCs)) emitted from airport sources were measured at Shenzhen Bao’an International Airport. The results showed that the compositions and proportions of VOC species showed significant differences as the aircraft operating state changed. OVOCs were the dominant species and accounted for 63.17%, 58.44%, and 51.60% of the total VOC mass concentration during the taxiing, approach, and take-off stages. Propionaldehyde and acetone were the main OVOCs, and dichloromethane and 1,2-dichloroethane were the main halohydrocarbons. Propane had the highest proportion among all alkanes, while toluene and benzene were the predominant aromatic hydrocarbons. Compared with the source profiles of VOCs from construction machinery, the proportions of halogenated hydrocarbons and alkanes emitted from aircraft were significantly higher, as were those of propionaldehyde and acetone. OVOCs were still the dominant VOC species in aircraft emissions, and their calculated ozone formation potential (OFP) was much higher than that of other VOC species at all stages of aircraft operations. Acetone, propionaldehyde, formaldehyde, acetaldehyde, and ethylene were the greatest contributors to ozone production. This study comprehensively measured the distribution characteristics of VOCs, and its results will aid in the construction of a source profile inventory of VOCs emitted from aircraft sources in real atmospheric environments.

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“…For a long time, aircraft emissions during LTO operations were conventionally considered to account for most pollutant emissions in airports (Masiol & Harrison, 2014 ). Emission inventories performed at several international airports (Celikel et al, 2004 ; Mazaheri et al, 2011 ; Winther et al, 2015 ; Yang et al, 2018 ; Yim et al, 2013 ) have shown, however, that the impact of ground handling emissions was as high as that of LTO emissions. As such, airports are mainly concerned about NO x emissions (especially NO 2 which is regulated).…”

Section: Introductionmentioning

confidence: 99%

“…To compensate for the shortcomings inherent in flow representation, they usually integrate complex dispersion processes (Tominaga & Stathopoulos, 2013 ); e.g., atmospheric stratification, buoyancy, chemistry, deposition, and concentration fluctuations. Gaussian models were used in airport environments (Celikel et al, 2004 ; Henry-Lheureux et al, 2021 ; Mazaheri et al, 2011 ; Winther et al, 2015 ; Yang et al, 2018 ; Yim et al, 2013 ) to develop a comprehensive formal assessment of emission inventories (aircraft main engines, APUs, ground-support equipment (GSE), ground-access vehicles (GAVs), private vehicle, stationary sources, etc. ), because they are designed to enable different sources of pollutants (Winther et al, 2015 ) (main engines, APUs, GSE, etc.).…”

Section: Introductionmentioning

confidence: 99%

3D High-Resolution Modeling of Aircraft-Induced NOx Emission Dispersion in CAEPport Configuration Using Landing and Take-Off Trajectory Tracking

Ghedhaifi

Montreuil

Chouak

et al. 2022

Water Air Soil Pollut

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Pollutant emissions from aircraft operations contribute to the degradation of air quality in and around airports. Meeting the ICAO’s environmental certification standards regarding both gaseous and particulate aircraft engine emissions is one of the main challenges for air-transportation development over the coming years. To increase the accuracy of airport air pollution monitoring and prediction, advanced decision-making tools need to be developed. In this context, the present study aimed at demonstrating the modeling capabilities of an innovative methodology that accounts for the microscale evolution of aircraft emissions, both spatially and temporally. For this purpose, 3D high-resolution CFD simulations were carried out in the CAEPport configuration (medium-size mock airport) as defined by the Committee on Aviation Environmental Protection (CAEP/8) for local air-quality assessment. The modeled domain extends up to 8 km around the airport. A spatial resolution down to 1 m was used around buildings to refine the prediction of pollutant-emission concentrations. The model accounts for ambient meteorological conditions along with the background chemical composition. NO x emissions from main engines and auxiliary power units (APUs) were individually tracked along LTO trajectories with a time resolution down to 1 s. The impact of atmospheric stability was investigated in three cases, i.e., stable, neutral, and unstable. The results show NO 2 dominating in apron areas due to the low power setting of main engines along APU contribution during extended parking. Conversely, a domination of NO emissions was observed at the runway threshold due to the high power setting of the main engines. Stable atmospheric conditions promoted higher NO and NO 2 concentrations as compared to both neutral and unstable cases. The use of APUs contributed to higher concentrations of both NO and NO 2 emissions and especially of NO 2 in terminal areas.

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Characterization of volatile organic compounds and the impacts on the regional ozone at an international airport

Cited by 19 publications

References 49 publications

Evidence of aircraft activity impact on local air quality: A study in the context of uncommon airport operation

Evidence of aircraft activity impact on local air quality: A study in the context of uncommon airport operation

Characteristics of Volatile Organic Compounds Emitted from Airport Sources and Their Effects on Ozone Production

3D High-Resolution Modeling of Aircraft-Induced NOx Emission Dispersion in CAEPport Configuration Using Landing and Take-Off Trajectory Tracking

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