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Correction: Towards a management strategy for microplastic pollution in the Laurentian Great Lakes—ecological risk assessment and management (part 2)
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Occurrence, Sources, Transport, and Fate of Microplastics in the Great Lakes–St. Lawrence River Basin
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Researchers documented that microplastics smaller than five millimeters are present throughout the Great Lakes and St. Lawrence River system, from tributary streams to the Atlantic Ocean. This finding suggests that the Great Lakes region is both a major accumulation zone and a transport pathway for microplastic pollution into the broader marine environment.
Understanding and addressing the environmental risk of microplastics
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Researchers reviewed the environmental risks of microplastics and nanoplastics, noting that lab exposure concentrations are often far higher than real-world levels and that detection limitations create significant uncertainty in current health risk assessments, calling for better monitoring standards and policy interventions.
On the likelihood of ecological risks from microplastics in the Laurentian Great Lakes
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This review assessed the likelihood of ecological risks from microplastics in the Laurentian Great Lakes, identifying significant challenges for risk assessment due to inconsistent data quality and lack of standardized methods, and calling for policy development to address microplastic pollution in these iconic ecosystems.
Towards a management strategy for microplastic pollution in the Laurentian Great Lakes—ecological risk assessment and management (part 2)
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Researchers applied ecological risk assessment frameworks to evaluate microplastic pollution in the Great Lakes and found that some areas may pose measurable risks to aquatic communities. By comparing proposed safety thresholds with actual monitoring data, they identified specific locations where microplastic concentrations exceed levels considered safe for freshwater organisms. The study represents an important step toward developing practical management strategies for microplastic pollution in one of the world's largest freshwater systems.
Realizing the global presence of microplastics in urban lakes
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A global literature review of microplastic research in urban lakes found widespread contamination across water, sediments, and fish, with published data concentrated in Asian megacities, while systematic open-access databases integrating raw cross-city data remain absent. Urban lakes serve as both sinks and exposure points for microplastics, making their monitoring critical for understanding human exposure risk in densely populated areas where billions of people live near potentially contaminated water bodies.
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