Table 3 Proposed microplastics toxicity thresholds for tissue translocation, relevant for particle sizes between 1 and 83 μm
From: Risk-based management framework for microplastics in aquatic ecosystems
Threshold | Particles/L (95% CI) | Mass (mg)/L (95% CI) |
|---|---|---|
Threshold 1- “Investigative monitoring” | 60a | 10a |
Threshold 2- “Discharge monitoring” | 312 (57 to 4680) | 51 (10 to 770) |
Threshold 3- “Management planning” | 890 (118 to 19,000) | 146 (19 to 3120) |
Threshold 4- “Source control measures” | 4110 (493 to 69,100) | 676 (81 to 11,400) |