Machine translation of the Portuguese Wikipedia article (November 2026 version).
Cubatão is a municipality in the Brazilian state of São Paulo, in the Metropolitan Region of Baixada Santista, microregion of Santos. The municipality occupies an area of 142.879 km², and its population, according to IBGE estimates for 2025, was 114,870 inhabitants.
It borders the municipalities of Santo André to the north, Santos to the east, the Bay of Santos to the south, São Vicente to the southwest and São Bernardo do Campo to the northwest, and it is the only municipality in Baixada Santista that is not on the coast.
With a large industrial park, Cubatão faced in the past the constant threat of pollution. In the 1980s, it was considered by the UN to be the most polluted city in the world. However, through the combined efforts of industries, the community and the government, the city managed to control 98% of the level of pollutants in the air. For this reason, in 1992 it received from the UN the title of "Symbol City of Environmental Recovery".
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