Cutting-Edge Research in Controlling Aerosols, Improving Public Health

A special issue of Toxics (ISSN 2305-6304). This special issue belongs to the section "Air Pollution and Health".

Deadline for manuscript submissions: closed (20 March 2025) | Viewed by 566

Special Issue Editors


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Guest Editor
Bioaerosol Laboratory, College of Engineering, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul 05029, Republic of Korea
Interests: bioaerosol; aerosol; infectious disease; filter; airborne transmission
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Guest Editor
Department of Biostatistics, Epidemiology & Environmental Health Sciences, Jiann-Ping Hsu College of Public Health, Georgia Southern University, Statesboro, GA 30458, USA
Interests: air quality; bioaerosols; environmental health; environmental epidemiology; microbial disinfection methods
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

For decades, aerosols have been considered a major air pollutant. Sizes of aerosols range from several nanometers to dozens of micrometers. Tiny toxic aerosol particles can enter the human respiratory system and cause various respiratory, cardiovascular, and neurodegenerative diseases. Furthermore, during the COVID-19 pandemic, aerosols were suspected to be carriers of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Therefore, extensive research was conducted to develop effective control methods against viral aerosols, and innovative technologies were implemented in real-life scenarios. This Special Issue will introduce and explore new techniques for managing various types of aerosols, including bioaerosols. Furthermore, we will also consider fundamental studies with the aim of developing control methods against aerosols. Theoretical studies to guide the direction of research studies on aerosols are also welcome. Works on bioaerosols, such as SARS-CoV-2 aerosols and influenza aerosols, will be considered for this Special Issue. Advances in new control methods against hazardous aerosols can play a significant role in improving public health.

Prof. Dr. Byung Uk Lee
Prof. Dr. Atin Adhikari
Guest Editors

Manuscript Submission Information

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Keywords

  • aerosol
  • bioaerosol
  • control
  • filter
  • airborne transmission
  • precipitation

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Published Papers (1 paper)

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Research

13 pages, 1084 KiB  
Article
Airborne SARS-CoV-2 Detection by ddPCR in Adequately Ventilated Hospital Corridors
by Joan Truyols-Vives, Marta González-López, Antoni Colom-Fernández, Alexander Einschütz-López, Ernest Sala-Llinàs, Antonio Doménech-Sánchez, Herme García-Baldoví and Josep Mercader-Barceló
Toxics 2025, 13(7), 583; https://doi.org/10.3390/toxics13070583 - 12 Jul 2025
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Abstract
Indoors, the infection risk of diseases transmitted through the airborne route is estimated from indoor carbon dioxide (CO2) levels. However, the approaches to assess this risk do not account for the airborne concentration of pathogens, among other limitations. In this study, [...] Read more.
Indoors, the infection risk of diseases transmitted through the airborne route is estimated from indoor carbon dioxide (CO2) levels. However, the approaches to assess this risk do not account for the airborne concentration of pathogens, among other limitations. In this study, we analyzed the relationship between airborne SARS-CoV-2 levels and environmental parameters. Bioaerosols were sampled (n = 40) in hospital corridors of two wards differing in the COVID-19 severity of the admitted patients. SARS-CoV-2 levels were quantified using droplet digital PCR. SARS-CoV-2 was detected in 60% of the total air samples. The ward where the mildly ill patients were admitted had a higher occupancy, transit of people in the corridor, and CO2 levels, but there were no significant differences in SARS-CoV-2 detection between wards. The mean CO2 concentration in the positive samples was 569 ± 35.6 ppm. Considering all samples, the CO2 levels in the corridor were positively correlated with patient door openings but inversely correlated with SARS-CoV-2 levels. In conclusion, airborne SARS-CoV-2 can be detected indoors with optimal ventilation, and its levels do not scale with CO2 concentration in hospital corridors. Therefore, CO2 assessment should not be interpreted as a surrogate of airborne viral presence in all indoor spaces. Full article
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