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Developing a Plastic Waste Management Program: From River Basins to Urban Beaches (Case Study)
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This study describes a plastic waste management program developed for the coastal Brazilian city of Recife, working from river basin source control to coastal cleanup. Researchers integrated data on plastic sources, transport pathways, and accumulation zones to design targeted interventions. The program offers a model for urban coastal cities seeking to systematically reduce plastic inputs to the marine environment.
Solid waste accumulation in coastal environments has been a growing concern. In the coastal megacity of Recife, Pernambuco state, Brazil, plastic waste issues currently exist both at the ocean scale and river basin scale. The city is known as the 'Brazilian Venice' thanks to the Capibaribe River, which crosses many neighborhoods, running in a west-east direction into the Atlantic Ocean. This paper provides the initial basis to develop a Plastic Waste Management Program proposal for implementation in the city of Recife, given the lack of resolutions that have looked at plastic waste management through integrated water environment scales (from river basin to ocean). The methodology used included articulation and documental collection from four main public agencies from the state/city and stakeholders. The results showed its relevance for better plastic waste management in Recife, considering an integrated water environment on a river basin-to-ocean scale by using the recognized major connected water environments (Capibaribe river and Boa Viagem beach). Similar integrated program proposals could be made for other coastal areas, enabling not only the identification of fragilities but also the exchange of information regarding the theme.
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Point-source inputs of microplastics from a specific industrial or municipal source were quantified in both a river and the adjacent coastal zone. The study links land-based pollution sources to downstream and coastal microplastic concentrations, supporting targeted source-control interventions.
Microplastics on Santos Beach: Sources of Pollution, Waste Characteristics and Possible Collection Solutions
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This study analysed marine litter pollution in Brazil using a 'Source-to-Sea' framework, mapping research networks, knowledge gaps, and the disconnect between science and policy. Researchers found that Brazil is among the top contributors of plastic waste to the ocean, and more integrated governance approaches are needed to address the problem.
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Scientists used computer models to trace where plastic trash on a Brazilian beach actually comes from, finding that plastic near the lagoon mouth mostly washes out from the lagoon itself, while plastic on more distant shores drifts in from the ocean, often from fishing areas. This matters because knowing exactly where plastic pollution originates helps communities target cleanup and prevention efforts where they'll do the most good, whether that means better waste management upstream or regulating fishing gear at sea, since plastic debris breaks down into microplastics that can end up in seafood and drinking water.
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