Water quality in streams is determined by several factors, including geology, topography, climate, and anthropogenic changes. This study aimed to assess the effects of watershed physical, morphology, and precipitation seasonality on the water quality of two streams that supply drinking water to rural settlements and urban areas in the Cerrado-Amazonia transition region. We monitored 16 physico-chemical attributes of water at six different sample locations over three years (2013–2016). Our results indicate that eight of these physico-chemical attributes did not meet the standards for safe drinking water established by Brazilian legislation. Precipitation seasonality, degradation of riparian zones, stream length, and watershed slope were the most important predictors of impaired water quality. Our results highlight the importance of restoring and conserving riparian forests in order to maintain drinking water quality.
Amazônia em chamas 5: o que queima, e onde
Amazônia em chamas 5: o que queima, e onde
Como o fogo na Amazônia ocorre, o que ele queima e como evitá-lo, uma vez que piora a saúde da população local, provoca danos ambientais e, num planeta mais quente, pode sair do controle com mais facilidade? Para responder a essas perguntas, é preciso entender a...