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Keywords:
Integrated water resources management, IWRM, environmental monitoring, water quality.Abstract
In the last decades, there is an agreement that the human activities degrade the superficial and underground quality water. Brazil has problems with water quality shortage data in some regions. This work analyzes which parameters are monitored of water quality in rivers and wastewater in the Rio Itajaí Watershed. These non-systematic monitoring are made by public and private companies and required by distinct regulation and oversight organizations. The bigger part of reports used in this work are from potentially polluting companies. With this information, it was possible to check the more frequently parameters and confront with current legislation. We evaluated 4947 reports of 216 companies, totalizing 250 parameters. From the ten more frequented parameters, seven are physic chemical, with highlights to BDO and pH. More than 50% of organic and biologic parameters that are in the evaluated reports, are not present in the legislation. On the 14 parameters classified as biological, only three are present in the current legislation. Fromthe parameters requested to the environmental organization and are not in the legislation, the most frequently are COD, settleable solids, apparent color, Kjedahl nitrogen, total coliform, and total iron.
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