Northern Brazil's Rondônia state capital Porto Velho is ranked worst of the country's state capitals for water and sanitation service, according to a study by NGO Instituto Trata Brasil (ITB).
The study, released this week, covered the 81 largest cities in Brazil, taking into account water supply and sewage collection and treatment coverage, as well as loss rates and annual investment in the sector.
Porto Velho has 74% water supply coverage while only 2% of residents have access to wastewater collection and treatment. Annual investments in the sector are just 27.8mn reais (US$15.1mn).
Rio de Janeiro state is home to three of the five worst cities for sanitation: Duque de Caixias, Belford and São João do Meriti, all of which have no more than 1% sanitation coverage.
Also in the north, Pará state capital Belém ranked as the fifth worst city, with 71% water supply coverage, 6% sewerage service and 22.3mn reais in annual investments.
Curitiba in the southern state of Paraná was the best-ranked of the state capitals, ranking fifth out of all cities with 99% water supply and 97% sewerage service coverage. The city invests some 220mn reais annually in water and sanitation.
Overall, São Paulo state accounted for the most of the cities in the top five. Santos was in the top spot with water and sewage coverage of 100% and 99% while Franca and Jundiaí ranked third and fourth.
The city of Uberlândia in Minas Gerais state came in second, with 99% potable water coverage and 96% access to sanitation.
The ITB study is based on 2009 data from national sanitation information center SNIS. For the full report, in Portuguese, go to this link