Evaluation of the water quality monitoring program of Mountain Rivers located in a tropical protected atlantic Forest area (PARNASO, Brazil): are the impacts of the highway really assessed?

IF 3 4区 环境科学与生态学 Q2 ENVIRONMENTAL SCIENCES Integrated Environmental Assessment and Management Pub Date : 2025-01-23 DOI:10.1093/inteam/vjaf007
Marcele Abreu Lopes, Marco Antônio Gomes Teixeira, Maurício Lorenzo Cerda Lema, Aguinaldo Nepomuceno
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Abstract

Road activities are recognized sources of pollution that affect the hydrochemistry of nearby water bodies. This study evaluated the Water Quality Monitoring Program in the Soberbo and Iconha rivers in the Guapi-Macacu watershed, which is affected by the BR-116 highway. The Rio-Teresópolis Concessionaire from 2009 to 2016 carried out quarterly sampling. The parameters analyzed were: temperature, pH, turbidity, settleable solids, DO, BOD, NO3-, NO2-, NH4+, PO4-3, total and thermotolerant coliforms, Fe, Ni, Cr and Zn. PO4-3, pH, BOD and thermotolerant coliforms sometimes exceed the freshwater limits set by the National Environment Council (CONAMA 357/05, 2005). However, these values did not change the classification of "good" according to the water quality index used by the Brazilian environmental authorities for river waters. Precipitation was an important factor in understanding the hydrochemistry. Monthly precipitation ranged from 779.8 mm in January 2013 to 2.8 mm in July 2010. Temporal analysis using non-parametric tests showed significant differences (p < 0.05) in almost all parameters, indicating a strong influence of precipitation patterns on water quality. On a spatial scale, only coliform was found to differ between rivers (p < 0.01), suggesting an anthropogenic influence. Principal component analysis showed that chemical weathering and mechanical erosion processes predominated in both rivers (PC1: Soberbo River - 20.3%; Iconha River - 26.7%). Rainfall was identified as a secondary factor associated with coliforms and NH4+, especially in the Iconha River (PC2: Soberbo River-10.8%; Iconha River-11.9%), whose altitude indicated the atmospheric contribution of pollution from the metropolitan region of Rio de Janeiro. The reports of the Water Quality Monitoring Program were critically evaluated, resulting in recommendations aimed at optimizing their effectiveness and providing support for decision-making on the management of water resources in environmental protection areas.

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来源期刊
Integrated Environmental Assessment and Management
Integrated Environmental Assessment and Management ENVIRONMENTAL SCIENCESTOXICOLOGY&nbs-TOXICOLOGY
CiteScore
5.90
自引率
6.50%
发文量
156
期刊介绍: Integrated Environmental Assessment and Management (IEAM) publishes the science underpinning environmental decision making and problem solving. Papers submitted to IEAM must link science and technical innovations to vexing regional or global environmental issues in one or more of the following core areas: Science-informed regulation, policy, and decision making Health and ecological risk and impact assessment Restoration and management of damaged ecosystems Sustaining ecosystems Managing large-scale environmental change Papers published in these broad fields of study are connected by an array of interdisciplinary engineering, management, and scientific themes, which collectively reflect the interconnectedness of the scientific, social, and environmental challenges facing our modern global society: Methods for environmental quality assessment; forecasting across a number of ecosystem uses and challenges (systems-based, cost-benefit, ecosystem services, etc.); measuring or predicting ecosystem change and adaptation Approaches that connect policy and management tools; harmonize national and international environmental regulation; merge human well-being with ecological management; develop and sustain the function of ecosystems; conceptualize, model and apply concepts of spatial and regional sustainability Assessment and management frameworks that incorporate conservation, life cycle, restoration, and sustainability; considerations for climate-induced adaptation, change and consequences, and vulnerability Environmental management applications using risk-based approaches; considerations for protecting and fostering biodiversity, as well as enhancement or protection of ecosystem services and resiliency.
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