Local high-pollution episodes in urban areas are largely driven by specific weather conditions and a mix of pollutants, raising concerns about their impact on health.
This study focused on Madrid from 2011-2014 to analyze how the mixing layer height (MLH) affects pollutant levels like NO, CO, and PM, along with daily mortality rates.
Results showed that lower MLH corresponded with higher pollutant concentrations and an increase in mortality, while higher MLH significantly reduced health risks, indicating a crucial link between weather patterns and air quality in cities.