T&T's air pollution intensities, by pollutant, 2019-2024 T&T air pollution intensity varies significantly between pollutants. the pandemic, particularly in transport-related pollutants such as CO and NOx, intensities in 2024 were largely similar to 2019 levels. CO and NOx have the highest intensities, reflecting the important role of transport in T&T direct operations and supply chains. Air pollution intensities also vary by region. Here we show NOx pollution intensity; other pollutants follow similar trends. across all pollutants, despite having the smallest absolute pollution footprint. This is due to the region's reliance on biofuels, pollution-intense agricultural practices, and legacy industrial