出版社：Grupo de Pesquisa Metodologias em Ensino e Aprendizagem em Ciências
摘要：The impacts on the aquatic environment are constantly being observed in Brazil, and the assessment and monitoring of water resources becomes necessary for a better targeting of planning and environmental management strategies. In this context, the objective of the study is to characterize the quality of the waters of the Preto da Eva river in its physical, chemical and microbiological aspects, and the environmental impacts resulting from the human presence on the river banks. The study was carried out at three points along the Preto da Eva River in the State of Amazonas, during the flood and ebb of the river in 2021. The urban area had greater environmental impact when compared to the rural and peri-urban areas, with a significant difference in quantity of solid waste and noise pollution (p<0.05), in addition to the limnological variables that presented higher values in the urban area. Although the urban area presents changes in environmental parameters, the self-cleaning power of the river helps in the cycling of these nutrients, keeping the river in natural conditions.
