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The Spatio-Temporal Distribution of Pre Production Rubber Pellets in Lake Champlain
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Researchers investigated the spatio-temporal distribution of pre-production rubber pellets in Lake Champlain using long-term data (1992-present) from 15 lake stations, finding that these 1 mm uniform pellets, first detected in 2012, are distributed throughout the lake with vertical stratification patterns in the water column.
Pre-production rubber pellets, a form of primary microplastics used in manufacturing, were first detected in Lake Champlain in 2012. These uniform 1 mm pellets pose ecological concerns due to their persistence and potential impacts on freshwater ecosystems. This study investigates the spatial and vertical distribution of these pellets using long-term data (1992–present) from the Lake Champlain Research Institute at SUNY Plattsburgh, collected from 15 lake stations. Pellets were quantified from samples retrieved via net tows from lake bottoms and vertical sampling at 5-meter intervals. In 2012, pellets were found ubiquitously across all stations, with Station 33 reporting the highest count (213). Vertical distribution analysis showed pellet presence at all depths. A Chi-Square test of independence revealed no statistically significant relationship between storm events and vertical pellet distribution. These findings suggest a widespread and persistent presence of pre-production microplastics in Lake Champlain, independent of storm disturbances, and no significant distribution pattern. Ongoing statistical analyses aim to refine our understanding of microplastic transport and inform policy on plastic pellet management and mitigation strategies in the future.
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Micro-rubber Menace: Pinpointing Particles in Freshwater Systems
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Researchers analyzed microrubber particles in freshwater ecosystems using Lake Champlain long-term monitoring data, examining the sources, transport pathways, and distribution of tire-derived and polyisoprene rubber pellets as a distinct category of microplastic contamination.
Survey of the Abundance and Distribution of Nurdles and Microplastics in Long-term Monitoring Zooplankton Samples from Lake Champlain
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Researchers surveyed long-term zooplankton monitoring samples from Lake Champlain to map where microplastics and rubber nurdles (small pre-production plastic pellets) accumulate across the lake. The study tested whether pollution was highest near industrial areas and whether fiber-type microplastics were most common, helping build a baseline understanding of plastic contamination in the lake.
Spatial and Temporal Distribution and Abundance Microplastics in Lake Champlain Long-Term Monitoring Samples
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Long-term monitoring of Lake Champlain found microplastics throughout the lake, with fibers making up the majority of particles and higher concentrations near industrial centers — providing one of the early longitudinal datasets on microplastic abundance and distribution in a major North American freshwater system.
From Beach to Basin: Assessing the Spatio-temporal Distribution of Microplastics in Lake Champlain
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Researchers investigated the spatio-temporal distribution of pre-production plastic pellets in Lake Champlain, examining pollution pathways including roadways, railways, and manufacturing outflows that transport these primary microplastics to freshwater shorelines and basins.
Beneath the Surface: Assessing the Spatio-Temporal Distribution of Microplastics in Lake Champlain and its Tributaries
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This study investigated the spatio-temporal distribution of microplastics in Lake Champlain and its tributaries across multiple seasons, finding MPs in all sampled water and sediment sites. Concentrations were highest near urban tributaries and lower in more remote areas, suggesting land-based runoff as a primary pathway.
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