Determinação do índice de qualidade da água tratada distribuída aos municípios do estado de Goiás
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Data
2013-11-08
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Universidade Federal de Goiás
Resumo
Individual evaluation of the results of each one of the physical, chemical and biological
parameters monitored for quality control of water distributed to the population is an
activity hampered by the great diversity and quantity of data generated by the analysis.
Determinations of water quality indices (WQI) has been used to convert a series of data
of water quality in a single number, able to represent a simple and objective way, the
water quality as whole. Aimed at obtaining WQIs of the 224 municipalities in Goiás,
that have supply systems operated by state sanitation company (SANEAGO), this study
investigated data on physical-chemical and microbiological tests, performed according
to methods described in Standard Methods, in samples supply water collected during
two years (oct., 2011 to aug., 2013) and, by the Canadian method known as CWQI
(Canadian water Quality Index), determined the WQI of each one of 224 municipalities
evaluated, and also determined the WQI referent to geographical microregions and
mesoregions of Goiás, allowing the spatialization of results in maps of the state of
Goiás. The evaluation concluded that 97.8% of municipalities in Goiás, which water
supply systems are operated by SANEAGO, have WQI categorized as 'Excellent' or
'Good', compared with 2.2% of municipalities categorized as 'Regular' or ‘Bad’. The
spatial distribution of the results led to the conclusion that, at the end of the study
period, the mesoregion Center classified as 'Excellent' in terms of WQI, while
mesoregions East, Northwest, North and South are classified as 'Good'.
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Citação
FERNANDES, Neemias Cintra. Determinação do índice de qualidade da água tratada distribuída aos municípios do estado de Goiás. 2013. 148 f. Dissertação (Mestrado em Engenharia do Meio Ambiente) - Universidade Federal de Goiás, Goiânia, 2013.