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Sampling microplastics in turbulent rivers using a stationary net from a bridge: what should be the sampling duration? how many samples are needed to reduce bias?
AI summary
This study assessed microplastic ingestion by wading birds in Croatian coastal wetlands through fecal analysis, finding particles in samples from multiple species. Dietary overlap with microplastic-contaminated prey items and direct incidental ingestion during feeding were proposed as primary exposure pathways for waterbirds in Adriatic coastal environments.
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Assessing Microplastic Debris in the Mississippi River Watershed Across Space, Time, and Varying Flow Conditions
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Microplastic concentrations in the Mississippi River watershed averaged approximately 80 particles per liter—with fibers comprising 98% of debris—and annual loads to the Gulf of Mexico were estimated at over 30 quadrillion particles. The Mississippi represents one of the largest conduits of plastic pollution from land to ocean, underscoring the need for upstream intervention to protect marine environments.
River Microplastic Contamination and Dynamics upon a Rainfall Event in Hong Kong, China
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An urban river in Hong Kong contained microplastics at nearly double the concentration of nearby coastal seawater after rainfall, but levels dropped tenfold within two hours as particles dispersed, underscoring rivers as major dynamic conduits for flushing microplastics into marine environments. Understanding these rainfall-driven pulses is critical for accurately estimating how much plastic enters the ocean from land-based sources.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.