Avaliação da qualidade da água do Rio Santa Rosa, Francisco Beltrão - PR

Abstract

The importance of the hydrous resources is known as fundamental for humanities survival. One of the main concerns of society is the disorderly growth of the population, which will contribute to a massive raise of the domestic fluids generation and decrease the special class of hydrous accessibility. Considering the facts, it’s necessary to test the water for any quality at all. To find out the hydrous quality of the Santa Rosa River batteries of physic-chemical and biological analyses, as well as toxicological tests with the micro crustaceans, Artêmia salina sp, were used. The samples used were from five different locations which had different potentials of pollution. For the tests was measured, the PH, OD, water temperature, total phosphor, total nitrogen, turbidity, total solids, DBO, DQO, and thermo tolerant coliforms. Obtained results contributed to establish an IQA and relate with the mortality level of the brine shrimp as well as the evaluated parameters. For the statistical analyses were used analyses of variance and Tukey’s Test, both with 5% of significance. The obtained results of the total nitrogen, total phosphor and thermo tolerant coliforms analyses remained over the limit established by the present law.