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Global assessment of microplastics: Leveraging MP-TOX scale for predicting ecological risk in aquatic ecosystems
AI summary
Researchers conducted a global meta-analysis of 3,515 field data points from 62 countries and found freshwater systems have significantly higher microplastic concentrations than marine waters, with filter-feeding invertebrates accumulating the most plastic across all ecosystems. The study introduced a novel MP-Tox scale validated against zooplankton bioassays, finding that while acute toxicity thresholds are rarely exceeded, current environmental levels are sufficient to impair reproduction in freshwater invertebrates.
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