Urinary Biomarkers and Respiratory Responses to Indoor and Traffic-Related Air Pollution in Urban Children: A Prospective Cohort Study
COVID-19 lockdowns unintentionally improved air quality by reducing traffic and industrial activity. This study assessed changes in respiratory health and urinary biomarkers of air pollution exposure among children with no traffic-related air pollution (TRAP) exposure and TRAP re-exposure under COVID-19-related lockdow...