The two publications involved in the cover of this issue focus on the critical study of bioaerosols emitted from both urban and rural environments. The featured papers examine their emission, diffusion, influencing factors, and associated health risks. By applying qualitative and quantitative modeling under windy meteorological conditions, including mineral dust emissions in a rust belt city, the authors address current challenges and offer practical recommendations to mitigate urban bio-pollution. The alterations of bioaerosols mediated by atmospheric ozone provide new insights and explore future strategies for scientific research and pollution control related to bioaerosols. Click the links to read the full texts:

Synergistic Effects of the Urban-Rural Divide on Outdoor Airborne Bioaerosol Diffusion: A Case Study in the Monsoon Region of China
A Critical Mini-Review on Atmospheric Ozone Mediated Alterations of Bioaerosols and Their Effects on Human Health