主题词：Air Quality and Health Impacts; Atmospheric chemistry and aerosols; Air Quality Monitoring and Forecasting; Climate Change and Health Impacts; Vehicle emissions and performance; Indoor Air Quality and Microbial Exposure; COVID-19 impact on air quality; Energy and Environment Impacts; Atmospheric aerosols and clouds; Toxic Organic Pollutants Impact; Noise Effects and Management; Energy, Environment, Economic Growth; Heavy metals in environment; Atmospheric Ozone and Climate; Atmospheric and Environmental Gas Dynamics; Wind and Air Flow Studies; Urban Heat Island Mitigation; Global Health Care Issues; Radioactivity and Radon Measurements; Infection Control and Ventilation; Energy, Environment, and Transportation Policies; Plant responses to elevated CO2; Odor and Emission Control Technologies; Environmental Impact and Sustainability; Fire effects on ecosystems