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Atmosphere
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Atmospheric Bioaerosols: Detection, Characterization and Modelling (2nd Edition)
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Atmospheric Bioaerosols: Detection, Characterization and Modelling (2nd Edition)

A special issue of Atmosphere (ISSN 2073-4433). This special issue belongs to the section "Aerosols".

Deadline for manuscript submissions: 19 November 2025 | Viewed by 1597

Special Issue Editors

Dr. David J. O'Connor

E-Mail Website
Guest Editor
School of Chemical Sciences, Dublin City University, D09 E432 Dublin, Ireland
Interests: bioaerosol monitoring; forecasting; characterization and source determination
Special Issues, Collections and Topics in MDPI journals
Dr. Eoin McGillicuddy

E-Mail Website
Guest Editor
School of Chemical and Pharmaceutical Sciences, Technological University Dublin, D07 H6K8 Dublin, Ireland
Interests: outdoor air quality; real-time detection; bioaerosols
Special Issues, Collections and Topics in MDPI journals
Dr. Meheal Fennelly

E-Mail Website
Guest Editor
School of Chemistry and Environmental Research Institute, University College Cork, T12 YN60 Cork, Ireland
Interests: indoor air quality; real-time detection; bioaerosols
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. John R. Sodeau

E-Mail Website
Guest Editor
School of Physical Chemistry, University College Cork, T12 YN60 Cork, Ireland
Interests: atmospheric chemistry; aerobiology; photochemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue is a follow-up to the first Special Issue in this area titled “Atmospheric Bioaerosols: Detection, Characterization and Modelling” (https://www.mdpi.com/journal/atmosphere/special_issues/3687G962GK) published in Atmosphere. The aim of this Special Issue is to communicate a selection of papers on the current state of the field, laboratory and modelling/forecasting studies relevant to atmospheric bioaerosol loading and ambient interactions.

The need to detect, characterize and model aerosols in our atmosphere has increased considerably more recently. This is primarily due to the detrimental effects that they can have on both human and plant health. An important component of these aerosols (both outdoors and indoors) is Primary Biological Aerosol Particles (PBAPs). These are composed of materials such as viruses, bacteria, fungal spores, pollen, sub-pollen and plant fragments. Therefore, we invite you to consider submitting your research for publication in this Special Issue of Atmosphere.

The relevant topics include the following: current issues related to real-time pollen, fungal spore and bacteria monitoring and networking systems; the development of innovative bioaerosol sensors; the influence of climate change on PBAP loadings; bioaerosols within occupational settings both indoors and outdoors (e.g., hospitals or green waste sites); surface phenomena and reactions; the relevance of real-time measurements to ice nucleation, cloud condensation nuclei, and other climate change issues; and modelling and forecasting of bioaerosols.

Dr. David J. O'Connor
Dr. Eoin McGillicuddy
Dr. Meheal Fennelly
Prof. Dr. John R. Sodeau
Guest Editors

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

  • pollen
  • fungal spores
  • bacteria
  • real-time detection and analysis
  • climate change
  • health
  • sensor networks
  • surface reactivity
  • modeling
  • forecasting

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Published Papers (2 papers)

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Research

28 pages, 5454 KiB  
Article
Comparative Analysis of Real-Time Fluorescence-Based Spectroscopic Instruments: Bioaerosol Detection in the Urban Environment of Dublin City, Ireland
by Jerry Hourihane Clancy, Emma Markey, Moisés Martínez-Bracero, José María Maya-Manzano, Eoin J. McGillicuddy, Gavin Sewell, Roland Sarda-Estève, Dominique Baisnée, Andrés M. Vélez-Pereira, Gemma Davis and David J. O’Connor
Atmosphere 2025, 16(3), 275; https://doi.org/10.3390/atmos16030275 - 26 Feb 2025
Viewed by 556
Abstract
Primary Biological Aerosol Particles (PBAPs) range in size from a few nanometres to hundreds of micrometres and include particles such as pollen and fungal spores, which are significant due to their prevalence and potential to induce allergic reactions and other health-related issues. This [...] Read more.
Primary Biological Aerosol Particles (PBAPs) range in size from a few nanometres to hundreds of micrometres and include particles such as pollen and fungal spores, which are significant due to their prevalence and potential to induce allergic reactions and other health-related issues. This study employs real-time fluorescence spectroscopy devices, the Wideband Integrated Bioaerosol Sensor (WIBS-NEO) and IBAC-2, to monitor PBAPs in the urban environment of Dublin, Ireland, during a six-week campaign in the summer of 2019. The WIBS-NEO demonstrated moderate correlations (R2 = 0.5–0.7) in comparison with Hirst volumetric air sampler data for pollen and fungal spore concentrations following appropriate data filtering. In contrast, the IBAC-2 showed poor correlation with ambient fungal spore concentrations and lacked the necessary particle size ranges for reliable pollen measurement. Comparative analysis between WIBS-NEO and IBAC-2 revealed moderate correlation (R2 ≈ 0.6) for small fluorescent particles (fluorescent particles between 0.7 and 1.5 μm optical diameter) but lower correlation for larger particles and specific bioaerosol types. The findings suggest that while the WIBS-NEO is effective for real-time bioaerosol monitoring, further refinement is needed for IBAC-2. This study underscores the potential of using advanced real-time monitoring tools in urban environments and highlights the need for continued development to address current limitations. Full article
(This article belongs to the Special Issue Atmospheric Bioaerosols: Detection, Characterization and Modelling (2nd Edition))
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10 pages, 6073 KiB  
Article
Inactivation of Bioaerosol in Natural Environments Using Tea Tree Oil
by Ekaterina Mirskaya and Igor E. Agranovski
Atmosphere 2024, 15(12), 1452; https://doi.org/10.3390/atmos15121452 - 4 Dec 2024
Viewed by 740
Abstract
In recent years, the need for effective indoor air disinfection procedures and devices has become increasingly important. Numerous studies have highlighted the varying degrees of efficiency with which essential oils control biological aerosols. This project focuses on the antimicrobial activity of tea tree [...] Read more.
In recent years, the need for effective indoor air disinfection procedures and devices has become increasingly important. Numerous studies have highlighted the varying degrees of efficiency with which essential oils control biological aerosols. This project focuses on the antimicrobial activity of tea tree oil, a natural product from Australia, delivered using the “Unitor™ Duct Air Treatment” and “Unitor™ A/C Unit Air Treatment” solutions from Wilhelmsen Ships Service. The study explored multiple scenarios, focusing on the inactivation of bacterial and fungal aerosols in various indoor environments. The findings demonstrated that all tested products efficiently eliminated bacterial and fungal strains, with significant reductions observed even within the first 24 h of treatment. Continued operation over the subsequent six days brought airborne microbial concentrations down to just a few strains per cubic metre. These promising results highlight the potential for the further development of bioaerosol inactivation technologies that employ essential oil vapour discharge over extended periods. The tested products, leveraging the antimicrobial properties of essential oils, present a strong solution for air quality control, particularly in environments prone to high bioaerosol concentrations. Full article
(This article belongs to the Special Issue Atmospheric Bioaerosols: Detection, Characterization and Modelling (2nd Edition))
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