Invisible pollution is a major problem in our cities. This danger affects everyone who lives and works in urban areas.
When people wait for public transport like trotos, or when children walk to school, they breathe in polluted air. This happens daily in busy city areas.
Drivers and their assistants, known as mates, also spend many hours in traffic. They are constantly exposed to the harmful effects of dirty air as they move passengers between different parts of the city.
The air quality impacts the health of many citizens who regularly use these transport routes.
This issue highlights a critical public health concern for urban populations across the country.
Further information on the specific pollutants and their health effects is being gathered.