ENVIRONMENTAL SANITATION INDEXES IN HYDROGRAPHIC REGIONS OF THE STATE OF RIO DE JANEIRO
Abstract
There are many challenges related to environmental sanitation in Brazil, whose rates are, in most cases, unsatisfactory in relation to the global average and standards established by Brazilian legislation. In the State of Rio de Janeiro the situation is not different, reaching for some indices a very unsatisfactory position in relation to the other Brazilian states. The present study proposed to obtain, to apply and to classify indexes of environmental sanitation byhydrographic regions of the State of Rio de Janeiro (RHRJ). To this end, 16 indicators and 10 sub-indexes were grouped into four categories: Coverage, Efficiency, Demand and Management. From the indicators and references, specific equations were applied and classes were established for each sub-index, being: Satisfactory (green), Acceptable (yellow) and Unsatisfactory (red). The values obtained for the sub-indices were summed by municipality and, later, an average was made by RHRJ, obtaining the final index. The last step was to perform a RHRJ ranking according to the Final Index. It has been observed that there is no tendency for an RHRJ to present all sub-indices unsatisfactory or satisfactory, they are variable. The best classification obtained in the ranking was the RHRJ VI (Lagos São João) and the worst classification was obtained by RHRJ IX (Baixo Paraíba do Sul and Itabapoana).
Keywords: indicators, classification, sub-indexes, categories, water resourses.
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