City Lungs (2002)
-project-
 The City Lungs on iGreenSpot
http://www.igreenspot.com/the-city-lungs-gets-people-aware-of-pollution/ 
The City Lungs on Pensando Verde
http://pensandoverde.blogtv.uol.com.br/2010/03/24/medidor-de-poluicao-em-forma-de-pulmao