Characteristics and potential source areas of aliphatic amines in PM2.5 in Yangzhou, China

Cheng, Guanghuan; Hu, Yuyu; Sun, Mingyang; Chen, Yanfang; Chen, Yuntao; Zong, Chenlu; Chen, Jianqiu; Ge, Xinlei

doi:10.1016/j.apr.2019.11.002

Cited by 20 publications

(11 citation statements)

References 47 publications

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“…At the Nanling Mountains site, long-range transportation from marine areas significantly contributed to the amine-containing particles (Liu et al, 2018). Cheng et al (2020) reported that marine emissions were the main source of the amine-containing particles in Yangzhou.…”

Section: Introductionmentioning

confidence: 99%

Size‐Resolved Mixing States and Sources of Amine‐Containing Particles in the East China Sea

Liu

Chen

et al. 2020

JGR Atmospheres

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Single-particle aerosol mass spectrometry was employed during a cruise campaign from 3 to 27 June 2017 to investigate the mixing states and sources of amine-containing particles in the East China Sea. A total of 271,160 particles were successfully identified, and 19,861 of these particles contained amines. Monomethylamine (MMA), trimethylamine (TMA), and diethylamine (DEA) were the most abundant amines. They accounted for 50%, 16%, and 29%, respectively, of the amine-containing particles. The size distributions (mean ± geometric standard deviation) of the MMA-, TMA-, and DEA-containing particles peaked at 0.58 ± 0.12, 0.56 ± 0.10, and 0.40 ± 0.10 μm, respectively. Using an adaptive resonance theory neural network algorithm, four major clusters of amine-containing particles were categorized: carbon-rich particles, K-rich particles, Na-rich particles, and metal-rich particles. The MMA-containing particles contained abundant elemental carbon-, K-, Mn-, and Fe-rich particles, which exhibit higher concentrations in land air masses, indicating that the MMA mainly originated from terrestrial anthropogenic sources. The TMA-containing particles contained abundant organic and elemental carbon-, EC-, K-, and V-rich particles. High concentrations of TMA-containing particles were measured near ports, indicating the significant contribution of the ports. The DEA-containing particles contained abundant organic and elemental carbon-, K-, Mn-, Cu-, and Na-rich particles, and high concentrations of DEA-containing particles were observed in remote marine areas, suggesting that both terrestrial anthropogenic and marine sources are important contributors to DEA-containing particles.

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Section: Introductionmentioning

confidence: 99%

Size‐Resolved Mixing States and Sources of Amine‐Containing Particles in the East China Sea

Liu

Chen

et al. 2020

JGR Atmospheres

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“…The 72 h air mass back-trajectories (500 m above the ground, 1h resolution) were simulated using the Hybrid Single-particle Lagrangian Integrated Trajectory (HYSPLIT) model ( Cheng et al, 2020 ), based on the meteorological data downloaded from the National Oceanic and Atmospheric Administration (NOAA) Global Data Assimilation System (GDAS, spatial resolution 1 ° × 1 °). The Potential Source Contribution Function (PSCF) method was applied to identify the potential source regions and the individual contributions of three mainly amine-containing particles by using the TrajStat plugins on MeteoInfoMap software ( Wang et al, 2009 ).…”

Section: Methodsmentioning

confidence: 99%

“…The mass concentrations and temporal distributions of amines in Chinese megacities (e.g., Guangzhou, Nanjing and Shanghai) have been studied extensively based on the traditional filter sampling methods ( Cheng et al, 2020 ; Liu et al, 2018 ; Shen et al, 2017 ). However, the traditional off-line sampling is time consuming and the samples may be reacted with each other during the sampling process.…”

Section: Introductionmentioning

confidence: 99%

Characteristics and sources of amine-containing particles in the urban atmosphere of Liaocheng, a seriously polluted city in North China during the COVID-19 outbreak

Zheng

Zhou

Wang³

et al. 2021

Environmental Pollution

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The Chinese government issued an unprecedentedly strict lockdown policy to control the spread of the novel coronavirus disease 2019 (COVID-19), significantly mitigating air pollution because of the dramatic reduction of industrial and traffic emissions. To explore the impact of COVID-19 lockdown (LCD) on organic aerosols, the mixing states and evolution processes of amine-containing particles were studied using a single particle aerosol mass spectrometer from January to March 2020 in Liaocheng, which is a seriously polluted city in North China. The counts and percentages of amine-containing particles in total obtained particles during the pre-LCD (547832, 29.8 %) were higher than those during the LCD (283983, 20.7 %) and post-LCD (102026, 18.4 %), mainly due to the reduced emission strength of amines and suppressed gas-to-particle partitioning of amines during the LCD and post-LCD. 74 (C 2 H 5 ) 2 NH 2 + was the most abundant amine marker, which accounted for 98.2 %, 98.4 %, and 96.7 % of all amine-containing particles during the pre-LCD, LCD, and post-LCD, respectively. Correlation analysis and temporal variations indicated that the gas-to-particle partitioning of amines was facilitated by the stronger acidic environment and lower temperature, while the effect of RH and aerosol liquid water content was minor. The A-OC particles were the most abundant type (accounting for ∼40 %) throughout the observation period. The temporal profiles and correlation analysis suggested that the impact of the increased O 3 on the amines and their oxidation products (e.g., trimethylamine oxide) was minor. The identified particle types, correlation analysis, and the potential source contribution function results implied that the amine-containing particles were mainly derived from local and surrounding sources during the LCD, while those were mainly affected by long-range transport during the pre-LCD and post-LCD. Our results could deepen the comprehension of the sources and atmospheric processing of amines in the urban area of North China during the COVID-19 outbreak.

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“…Tanneries may also represent a significant source (JRC reference reports, 2013). In urban areas anthropogenic nonagricultural sources could represent the main contribution to amines emission (Shen et al, 2017;Cheng et al, 2020;Liu et al, 2022). Furthermore, emerging emission sources of amines have been associated with their use in the 60 CO2 capture processes and, possibly, in catalytic processes for the reduction of NOx emissions from engines (Ge et al, 2011a;Muthiya et al, 2022;Stanciulescu et al, 2010) Measurement of the ambient concentrations of atmospheric amines is challenging due to their high volatility and polarity.…”

Section: Introduction 35mentioning

confidence: 99%

Optimized procedure for the determination of alkylamines in airborne particulate matter of anthropized areas

Spolaor

Soldà

Formenton

et al. 2023

Preprint

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Abstract. Due to their role in the formation of secondary aerosol, the concentrations of the most abundant aliphatic amines (methylamine (MA), dimethylamine (DMA), ethylamine (EA), diethylamine (DEA), propylamine (PA), and buthylamine) present in the aerosol of a very anthropized area were measured by an optimized analytical procedure. PM10 samples were collected in the tannery district of Vicenza (in the Po Valley, northern Italy) in autumn 2020. Alkylamines were extracted in water and converted to carbamates through derivatization with Fmoc-OSu for subsequent determination by UHPLC with fluorescence detection. The procedure has been optimized and validated obtaining very satisfactory analytical performances: LODs were in the range of 0.09–0.26 ng/m3, average uncertainty of 3.4 % and recoveries of 95–101 %. The mean total concentration of the 6 amines measured in this study was 37 ± 17 ng/m3, with DMA making the largest contribution. The proposed procedure may contribute to a better characterization of the local aerosol. In our preliminary investigation, the Pearson’s correlation test showed that amines correlate strongly with each other and with secondary inorganic ions (NH4+, NO3- and SO42-), confirming that they compete with ammonia in the acid-base atmospheric processes that lead to the formation of nitrate and sulphate particles. The developed method allows to gather critical information about the load of aliphatic amines in PM to gain more insights into the sources and fate of these chemicals in the atmosphere.

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Characteristics and potential source areas of aliphatic amines in PM2.5 in Yangzhou, China

Cited by 20 publications

References 47 publications

Size‐Resolved Mixing States and Sources of Amine‐Containing Particles in the East China Sea

Size‐Resolved Mixing States and Sources of Amine‐Containing Particles in the East China Sea

Characteristics and sources of amine-containing particles in the urban atmosphere of Liaocheng, a seriously polluted city in North China during the COVID-19 outbreak

Optimized procedure for the determination of alkylamines in airborne particulate matter of anthropized areas

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