Journal
ENVIRONMENTAL MONITORING AND ASSESSMENT
Volume 181, Issue 1-4, Pages 165-173Publisher
SPRINGER
DOI: 10.1007/s10661-010-1821-9
Keywords
Estuarine systems; River pollution; Mass balance; Natural and anthropogenic components; Metals
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This study addressed the identification and monitoring of pollution sources of terrestrial origin in rivers (domestic sewage and industrial effluents) and critical fluvial segments in highly polluted environments under tidal influence (mixing marine and continental sources) from Guanabara Bay Basin, Rio de Janeiro, Brazil. The mass balance of contaminants was determined in conditions of continuous flow (low tide) during dry season (lower dilution capability). The results allowed the evaluation of the potential of contaminant mass generation by the different river segments and the estimation of their natural and anthropogenic components. The water quality of Igua double dagger A(0) and Sarapui Rivers were evaluated for metals and biochemical oxygen demand. The method gave an excellent response, including the possibility of sources identification and contaminated river segments ranking. The approach also offers fast execution and data interpretation, being highly efficient.
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