Pollution generated by these vehicles is the cause of death of over 4.5 thousand people in the city, yearly. In order to help people visualise this invisible menace, Agência TUDO used regular party balloons, and a special adapter, to create the « 3 Segundos » (3 Seconds) project. The initiative measures the quantity of harmful gas that is expelled by vehicle exhaust pipes and provides a clear visual representation of the size of the problem faced by big cities daily.
