Field evaluation of a novel charge transfer ionization TOF MS for ambient VOC measurements

IF 3.2 3区 地球科学 Q2 METEOROLOGY & ATMOSPHERIC SCIENCES
Olga Zografou, Christos Kaltsonoudis, Maria Gini, Angeliki Matrali, Elias Panagiotopoulos, Alexandros Lekkas, Dimitris Papanastasiou, Spyros N. Pandis, Konstantinos Eleftheriadis
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引用次数: 0

Abstract

Abstract. A newly developed charge transfer orthogonal Time-of-Flight Mass Spectrometer (oToF-MS), was deployed for the first time in the field in order to evaluate its ability to perform online real-time measurements of volatile organic compounds (VOCs) for a prolonged time period. The study focused on urban air sampling and targeted a specific range of VOCs, namely: acetone, isoprene, benzene, toluene, and xylene. The measurement campaign took place from May to August 2023 at the suburban area in Athens Greece. The measured VOC level were consistent with those reported in previous summer campaigns suggesting that the instrument did not face any unexpected problems moving from the laboratory to the field. The variability of the measurements of the various VOCs was used to gain insights about their sources. Transportation emissions were a dominant source of the BTX compounds (benzene, toluene and xylene). Acetone and isoprene were emitted by both anthropogenic and biogenic sources. During the summer biogenic sources were responsible for most of the isoprene in the site.
对用于环境挥发性有机化合物测量的新型电荷转移电离 TOF MS 进行实地评估
摘要为了评估新开发的电荷转移正交飞行时间质谱仪(oToF-MS)长时间在线实时测量挥发性有机化合物(VOCs)的能力,我们首次在现场部署了该仪器。研究的重点是城市空气采样,目标是特定范围的挥发性有机化合物,即:丙酮、异戊二烯、苯、甲苯和二甲苯。测量活动于 2023 年 5 月至 8 月在希腊雅典郊区进行。测量到的挥发性有机化合物水平与之前夏季测量活动中报告的水平一致,表明仪器在从实验室到现场的过程中没有遇到任何意外问题。通过测量各种挥发性有机化合物的变化,可以深入了解其来源。运输排放是 BTX 化合物(苯、甲苯和二甲苯)的主要来源。丙酮和异戊二烯的排放既有人为来源,也有生物来源。在夏季,生物源是该地点大部分异戊二烯的来源。
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来源期刊
Atmospheric Measurement Techniques
Atmospheric Measurement Techniques METEOROLOGY & ATMOSPHERIC SCIENCES-
CiteScore
7.10
自引率
18.40%
发文量
331
审稿时长
3 months
期刊介绍: Atmospheric Measurement Techniques (AMT) is an international scientific journal dedicated to the publication and discussion of advances in remote sensing, in-situ and laboratory measurement techniques for the constituents and properties of the Earth’s atmosphere. The main subject areas comprise the development, intercomparison and validation of measurement instruments and techniques of data processing and information retrieval for gases, aerosols, and clouds. The manuscript types considered for peer-reviewed publication are research articles, review articles, and commentaries.
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