Table 8 Comparative environmental impact of recovered chromium vs. raw chromium production.
Impact category | Unit | Chromium recovered | Raw chromium | % Change |
|---|---|---|---|---|
Climate Change, Human Health | DALY | 2.43E-06 | 3.78E-05 | −93.57% |
Ozone depletion | DALY | 3.16E-09 | 3.46E-09 | −8.67% |
Human toxicity | DALY | 5.95E-07 | 6.09E-06 | −90.23% |
Photochemical oxidant formation | DALY | 2.35E-10 | 3.00E-09 | −92.17% |
Particulate matter formation | DALY | 1.25E-06 | 1.76E-05 | −92.90% |
Ionizing radiation | DALY | 3.79E-09 | 4.98E-08 | −92.39% |
Climate change, Ecosystems | species.yr | 1.37E-08 | 2.14E-07 | −93.60% |
Terrestrial acidification | species.yr | 5.44E-11 | 6.30E-10 | −91.37% |
Freshwater eutrophication | species.yr | 3.73E-11 | 4.63E-10 | −91.94% |
Terrestrial ecotoxicity | species.yr | 2.86E-11 | 2.65E-10 | −89.21% |
Freshwater ecotoxicity | species.yr | 5.32E-11 | 4.16E-10 | −87.21% |
Marine ecotoxicity | species.yr | 9.89E-12 | 7.88E-11 | −87.45% |
Agricultural land occupation | species.yr | 1.05E-09 | 9.26E-09 | −88.66% |
Urban land occupation | species.yr | 5.63E-10 | 5.87E-09 | −90.41% |
Natural land transformation | species.yr | 4.94E-10 | 6.81E-09 | −92.75% |
Metal depletion | $ | 1.03E-02 | 2.13E + 00 | −99.52% |
Fossil depletion | $ | 7.39E-02 | 1.20E + 00 | −93.84% |
