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Atmosphere
Special Issues
State-of-the-Art Detection and Analysis of Atmospheric Volatile Organic Compounds (VOCs)
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State-of-the-Art Detection and Analysis of Atmospheric Volatile Organic Compounds (VOCs)

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Atmospheric Techniques, Instruments, and Modeling".

Deadline for manuscript submissions: closed (15 May 2024) | Viewed by 739

Special Issue Editor

Dr. Jie Sun

E-Mail Website
Guest Editor
Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100191, China
Interests: Volatile organic compounds; emission source; air quality and human health; air pollution control

Special Issue Information

Dear Colleagues,

The photochemical activity and toxicity of VOCs directly affect the environment and human health. High-concentration VOCs are important precursors of secondary organic aerosols and ozone through their photochemical interactions with free radicals, making VOCs some of the primary factors affecting indoor and outdoor air quality. The high toxicity and carcinogenicity of some VOCs have also attracted the attention of healthy lifestyle enthusiasts. Therefore, understanding the compositional characteristics and source distribution of VOCs, and evaluating their photochemical effects and health risks, is crucial for improving health and environmental safety. This Special Issue aims to collect the latest data and investigate the relationship between environmental emissions of VOCs, air quality, and human health risks through both environmental monitoring and statistical modeling. Topics of special interest include, but are not limited to, the following:

  1. Study on VOC spectroscopy of typical emission sources;
  2. Development of high spatiotemporal resolution dataset for VOCs emission inventories;
  3. Coupled VOCs-NOx-O3 coupling model of pollution events;
  4. Indoor and outdoor air quality human health risk assessment;
  5. Air quality prevention and control strategies.

Dr. Jie Sun
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • VOCs
  • air quality
  • emission source
  • air quality and human health
  • air pollution control

Published Papers (1 paper)

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Research

14 pages, 2575 KiB  
Article
Development of a Refrigerant-Free Cryotrap Unit for Pre-Concentration of Biogenic Volatile Organic Compounds in Air
by Xiaoxiao Ding, Daocheng Gong, Qinqin Li, Shiwei Liu, Shuo Deng, Hao Wang, Hongjie Li and Boguang Wang
Atmosphere 2024, 15(5), 587; https://doi.org/10.3390/atmos15050587 - 11 May 2024
Viewed by 422
Abstract
Biogenic volatile organic compounds (BVOCs) are key compounds in atmospheric chemistries, but difficult to measure directly. In this study, a pre-concentration unit combined with gas chromatography-mass spectrometry (GC-MS) was developed for the quantitative analysis of 18 BVOCs in ambient air. The analytes are [...] Read more.
Biogenic volatile organic compounds (BVOCs) are key compounds in atmospheric chemistries, but difficult to measure directly. In this study, a pre-concentration unit combined with gas chromatography-mass spectrometry (GC-MS) was developed for the quantitative analysis of 18 BVOCs in ambient air. The analytes are trapped on an empty silonite-coated tube, which is cooled by a thermoacoustic cooler to cryotrap at −150 °C, and then desorbed by rapid heating to 200 °C. The set-up involves neither the exchange of solid adsorbents nor any further condensation or refocusing steps. Reliable operation is ensured by the thermoacoustic cooler, which neither contains a liquid refrigerant nor requires refilling a cryogen. The pre-concentration unit parameters such as water removal temperature, desorption temperature and desorption time were optimized. All compounds had correlation coefficients that were better than 0.95, and the detection limits were 0.005–0.009 ppbv when the injection volume is 400 mL. The repeatability ranges were 0.9–5.8%. The recoveries were ranged from 81.8% to 93.2%. This new method was applied for the first time to measure ambient BVOCs in suburb Guangzhou in summer 2022. Isoprene concentrations ranged from 0.375 ppbv to 2.98 ppbv. In addition, several extremely low-level monoterpenes (e.g., α-pinene, β-pinene, and D-limonene) were also detected by the method. Full article
(This article belongs to the Special Issue State-of-the-Art Detection and Analysis of Atmospheric Volatile Organic Compounds (VOCs))
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