Cubatão Coordinates : 23°53′43″S , 46°25′32″W The title of this article contains the character ã . Where it is unavailable or not desired , the name may be represented as Cubatao . Cubatão is a city in the state of São Paulo , Brazil . The population in 2003 is 113 , 599 , its density is 799.99/km² and the area is 142 km² . Until the 1980's , Cubatão was one of the most polluted cities in the world . High air pollution was killing forest over hills around the city . Hard providences were taken to diminish pollution in the city . Industrial manufacturing plants in the vicinity contribute to pollution in Cubatão . North : Santo André West : São Bernardo do Campo Cubatão East : Santos South : São Vicente  This geographical article relating to the state of São Paulo is a stub . You can help Wikipedia by expanding it . Categories : São Paulo ( state ) geography stubs | São Paulo state | Cities in São Paulo In other languages : Português | Svenska 23 53 43 S 46 25 32 W scale : 100000 ã Cubatao 