Table 3.
Weighted amounts of PP-containing MP in MFA compartments.
| Compartments | Amount (kg/y) |
Weighted amount (kg/y)a | ||
|---|---|---|---|---|
| d = 5 μm | d = 20 μm | |||
| Source Released to |
PP-MP in mask | 46,284 | 740,524 | 86,748 |
| WWTP | 105 | 1678 | 197 | |
| WIP | 21,720 | 347,355 | 40,700 | |
| Landfill | 25,672 | 410,758 | 48,117 | |
| End-point | Water | 72 | 1147 | 135 |
| Air | 120 | 1927 | 225 | |
| Soil | 772 | 12,351 | 1447 | |
| Export | Reuse | 166 | 2650 | 311 |
| Sludge recycling | 64 | 1017 | 120 | |
| Removal of MP | 19,539 | 312,619 | 36,621 | |
Type-1 masks were assumed to predominantly use PP fibers with a diameter of 5 μm, whereas type-2 and type-3 masks use fibers with a diameter of 20 μm. The Weighted amount in each compartments was calculated based on the given information (WFs) in Table 1.