Table 2. Quantities and Nr fluxes of structural industrial products worldwide circa 2008.
| Species | Quantity (Tg) | N content (%) | N flux (Tg) | Reference |
|---|---|---|---|---|
| Synthetic fiber | ||||
| Polyamide fiber | 3.9 | 12.4–32.6 | 0.5–1.3 | Ou59 |
| Acrylic fibers | 2.0 | 26.4 | 0.5 | |
| Polyurethane fiber | 0.3 | 23.7 | 0.1 | |
| Plastic* | ||||
| AS (SAN) | 7.5 | 8.9 | 0.7 | CPIEO36 |
| ABS | 12.3 | 4–9 | 0.5–1.1 | |
| PU | 13.5 | 23.7 | 3.2 | |
| Synthetic rubber | ||||
| Nitrile rubber | 0.8 | 13 | 0.1 | Li & Wu60 |
| Acryl-nitrile rubber | 4.7–12.1 | |||
| Dye | 1.3 | ** | ** | Zhang61 |
| Paint | 36.6 | ** | ** | CPIA34 |
| Resin | ** | ** | ** | |
| Total | > 78.2 | > 5.6–7.0# | ||
*AS (SAN): styrene-acrylonitrile copolymers; ABS: acrylonitrile-butadiene-styrene copolymers; PU: polyurethanes.
**, no data available.
#, the average value is 6.3.