A Critical Mini‑Review on Atmospheric Ozone Mediated Alterations of Bioaerosols and Their Effects on Human Health

Review A Critical Mini-Review on Atmospheric Ozone Mediated Alterations of Bioaerosols and Their Effects on Human Health Linghui Peng 1,2, Caiqing Peng 1,2, Guiying Li 1,2, and Taicheng An 1,2,* 1 Guangdong-Hong Kong-Macao Joint Laboratory for Contaminants Exposure and Health, Guangdong Key Laboratory of Environmental Catalysis and Health Risk Control, Institute of Environmental Health and Pollution Control, Guangdong University of Technology, Guangzhou 510006, China 2 National Engineering Laboratory for VOCs Pollution Control Material & Technology Guangdong Branch, Guangdong Basic Research Center of Excellence for Ecological Security and Green Development, School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China * Correspondence: [email protected] Received: 3 February 2025; Revised: 12 March 2025; Accepted: 14 March 2025; Published: 17 March 2025 Abstract: Bioaerosols are airborne particles that contain microorganisms and their derivatives, attracting much attention recently due to global epidemic of COVID-19. In fact, characteristics of bioaerosols can be significantly influenced by pollutants in air. As one of the most common ambient air pollutants, ozone (O3) may influence the characteristics of bioaerosols and finally affects their health effects. However, the interaction association between the atmospheric ozone pollution and bioaerosols are poorly understood. In this critical mini-review, recent research about the influences of O3 on biological components, physical characteristics, bio-activity, evolution of community structure as well as health risk of bioaerosols is reviewed. In addition, this mini-review also highlights that atmospheric O3 may play a potential role to boost the spread of antibiotics resistance genes to some extent, which warns the public to properly control atmospheric O3 and bioaerosol pollutions synchronously.