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. 2021 Aug 25;3:e022. doi: 10.14324/111.444/ucloe.000022

Table A21.

Stage contribution to each environmental impact category for Scenario 1b – Using single-use masks in the UK (mask manufactured in UK, materials imported from China).

Mask manufacture Filter manufacture Mask packaging manufacture Mask transport to UK Filter transport to UK Mask UK distribution Filter UK distribution Mask use Mask waste transport Filter waste transport Packaging waste transport Mask disposal Filter disposal Packaging waste disposal
EF 3.0 Acidification terrestrial and freshwater [mole of H+ eq.] 90.21% 0.00% 6.89% 0.00% 0.00% 2.62% 0.00% 0.00% 0.04% 0.00% 0.03% 0.04% 0.00% 0.16%
EF 3.0 Cancer human health effects [CTUh] 88.79% 0.00% 7.49% 0.00% 0.00% 3.98% 0.00% 0.00% 0.02% 0.00% 0.02% −0.28% 0.00% −0.02%
EF 3.0 Climate change [kg CO2 eq.] 81.26% 0.00% 5.53% 0.00% 0.00% 3.51% 0.00% 0.00% 0.18% 0.00% 0.16% 7.43% 0.00% 1.92%
EF 3.0 Ecotoxicity freshwater [CTUe] 48.41% 0.00% 50.12% 0.00% 0.00% 2.73% 0.00% 0.00% 0.02% 0.00% 0.02% −1.01% 0.00% −0.29%
EF 3.0 Eutrophication freshwater [kg P eq.] 38.11% 0.00% 53.11% 0.00% 0.00% 7.62% 0.00% 0.00% 0.00% 0.00% 0.00% 0.75% 0.00% 0.40%
EF 3.0 Ionising radiation – human health [kBq U235 eq.] 93.98% 0.00% 11.81% 0.00% 0.00% 4.55% 0.00% 0.00% 0.01% 0.00% 0.00% −7.54% 0.00% −2.81%
EF 3.0 Land use [Pt] 37.95% 0.00% 57.93% 0.00% 0.00% 5.39% 0.00% 0.00% 0.00% 0.00% 0.00% −0.95% 0.00% −0.31%
EF 3.0 Non-cancer human health effects [CTUh] 77.80% 0.00% 13.46% 0.00% 0.00% 6.41% 0.00% 0.00% 0.04% 0.00% 0.04% 0.18% 0.00% 2.06%
EF 3.0 Ozone depletion [kg CFC-11 eq.] 90.81% 0.00% 4.28% 0.00% 0.00% 4.91% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%
EF 3.0 Photochemical ozone formation – human health [kg NMVOC eq.] 92.59% 0.00% 4.84% 0.00% 0.00% 2.02% 0.00% 0.00% 0.03% 0.00% 0.03% 0.01% 0.00% 0.48%
EF 3.0 Resource use, energy carriers [MJ] 93.75% 0.00% 5.59% 0.00% 0.00% 3.50% 0.00% 0.00% 0.17% 0.00% 0.15% −1.94% 0.00% −1.21%
EF 3.0 Resource use, mineral and metals [kg Sb eq.] 41.05% 0.00% 21.57% 0.00% 0.00% 38.54% 0.00% 0.00% 0.00% 0.00% 0.00% −0.84% 0.00% −0.33%
EF 3.0 Respiratory inorganics [disease incidences] 71.53% 0.00% 20.68% 0.00% 0.00% 8.03% 0.00% 0.00% 0.04% 0.00% 0.03% −0.33% 0.00% 0.02%
EF 3.0 Water scarcity [m3 world equiv.] 63.76% 0.00% 18.69% 0.00% 0.00% 4.13% 0.00% 0.00% 0.00% 0.00% 0.00% 7.97% 0.00% 5.45%