The Tarumã River and its tributary the Matrinchã and Bolívia igarapés (Manaus city AM), are impacted by sanitary landfill and sewage effluent. With the aims to determine the impact were analyzed the physical and chemical characteristics and heavy metals in the surface waters in three different pluviometric periods. The water is highly chemically modified specially by the NH4+, Ni, Pb, Cu and Zn in relation to the natural water patterns. Conductivity, alkalinity, PO4(3-), NH4+, K+, Na+, Ca2+, Fe3+ e Mg+ that were the main parameters for qualifying the water of the studied waters, indicated that the quality of the water improves downstream to the Bolívia igarapé in the beginning of the rainy period but with no great differences upstream. These differences suggest that water samples in part of the basin are affect by the time at which they get collected and although the water is more diluted in the end of the rainy period there is no improvement in its quality. The two contamination input sources from sanitary landfill and sewage effluent, were not differentiated.
Surface water; sewage effluent; toxic metals; Central Amazon
