The article studied traffic air pollution in Balneário Camboriú, Brazil. The researchers wanted to see how pollution affects the environment and economy. They used models to estimate pollution levels, finding that nitrogen and sulfur oxides often exceed safe limits near roads. The pollution is higher during busy times at many intersections. They noticed that areas with similar traffic patterns had similar pollution levels, showing a pattern. The estimated costs of pollution from traffic were around $0.89 to$1.43 million per year. The study helps to understand the impact of traffic pollution in the area and provides ideas to make transport policies better and healthier.