Table 3.
Mean microplastic count, percent fibre, mean microplastic volume in the unexposed control (CON) bags and three urban intensity groups (PTB, TOR, and GTA), and accumulated concentration (mp g−1) in moss bags (dry weight) during the deployment period (45 days; 9 October–23 November 2020). Estimated daily deposition of microplastics (mp) and plastic microfibres (mf) are also shown.
| Group | Microplastic Count |
Fibre % |
Volume mm3 g−1 |
Concentration mp g−1 (45 Days) |
Deposition mp m−2 Day−1 |
Deposition mf m−2 Day−1 |
|---|---|---|---|---|---|---|
| CON | 2.8 | 93 | 0.002 | |||
| PTB | 6.2 | 62 | 0.007 | 3.7 | 21 | 13 |
| TOR | 11.3 | 33 | 0.019 | 8.8 | 50 | 17 |
| GTA | 13.0 | 48 | 0.064 | 10.7 | 60 | 29 |