| Microplastics concentration, weight | Value |
| Data source 1: Project groups own verified measurements (excluding non-synthetic fibers) microplastics > 20 μm | |
| min [particle/m3] | 13,000 |
| median [particle/m3] | 25,500 |
| max [particle/m3] | 65,000 |
| Particle weight [μg] | 6.6 |
| Data source 2: Other measurements (mostly excluding non-synthetic fibers) microplastics > 10 μm | |
| min [particle/m3] | 15,000 |
| median [particle/m3] | 90,000 |
| max [particle/m3] | 10,000,000 |
| Particle weight [μg] | 0.035 |