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Environmental monitoring of the Pericumã River using the GLOBE hydrosphere protocol.
Organization(s):UFMA - UNIVERSIDADE FEDERAL DO MARANHÃO
Country:Brazil
Student(s):Leticia Alves dos Santos, Maria Eduarda Cabral Bezerra, Cryslla Beatriz Penha Costa, Geyse Adriana Corrêa Ribeiro, Hilton Costa Louzeiro, Núbia Fernanda Marinho Rodrigues, Aline Bessa Veloso, Aslei Andrade da Silva, João Paulo Tenório da Silva Santos
Grade Level:Undergraduate
GLOBE Member(s):João Santos
Contributors:
Report Type(s):Virtual Science Symposium Report
Protocols:Alkalinity, Conductivity, Dissolved Oxygen, Nitrates, pH, Salinity, Water Temperature
Presentation Poster:
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Language(s):English
Date Submitted:2026-01-29
This research proposal investigates the impact of disordered urban occupation on the water quality of mangrove ecosystems in Turiaçu, Maranhão, Brazil. The study focuses on analyzing key physicochemical parameters—pH, dissolved oxygen, nitrate, salinity, and electrical conductivity—of tidal water at sampling points with varying levels of anthropogenic pressure (high, medium, and low urban density). Utilizing protocols adapted from the GLOBE Program, the research aims to assess spatial variations in pollution and the influence of seasonal changes (rainy vs. dry periods) on water quality degradation. Beyond environmental monitoring, the project seeks to understand the perceived health risks for the local population, whose subsistence and livelihood depend on fishing and shellfish gathering in these potentially contaminated waters. By generating scientific evidence that directly links inadequate sanitation in informal settlements to ecosystem and public health impacts, the study aspires to raise community awareness and provide a technical foundation for advocating improved public policies in sanitation, urban planning, and mangrove conservation. This work aligns with the UN Sustainable Development Goals, particularly SDG 6 (Clean Water and Sanitation) and SDG 14 (Life Below Water).