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Life Cycle Assessment Data

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Table S3 Sensitivity: Ammonium Sulfate Allocation Decisions
Revised November 2003

 

per 1 kg of Ni in Nickel Metal (99.3% Nickel) produced
  Flow Units Class I Nickel Production with AMSUL Coproduct: Substitution Allocation Class I Nickel Production with AMSUL Coproduct: No Allocation Percent Change
Inputs: (r) Coal (in ground) kg 1.7 1.7 -0.4%
  (r) Iron (Fe, ore) kg 1.3 E-03 1.3 E-03 0%
  (r) Limestone (CaCO3, in ground) kg 0.24 0.24 NO CHANGE
  (r) Natural Gas (in ground) kg 1.8 1.8 4.5%
  (r) Nickel, in ground kg 1.9 1.9 NO CHANGE
  (r) Oil (in ground) kg 2.0 2.0 0%
  (r) Uranium (U, ore) kg 3.6 E-05 3.6 E-05 0%
  Net Water Used liter 1929 1930 0%
  Water: Public Network liter 187 188 0.3%
  Water: River liter 953 953 NO CHANGE
  Water: Sea liter 5.7 5.7 NO CHANGE
  Water: Unspecified Origin liter 39 39 0.2%
  Water: Well liter 745 745 NO CHANGE
Outputs: (a) Carbon Dioxide (CO2, fossil) g 13675 13757 0.6%
  (a) Carbon Monoxide (CO) g 37 37 0.2%
  (a) Nitrogen Oxides (NOx as NO2) g 52 52 0.3%
  (a) Nitrous Oxide (N2O) g 1.3 1.3 -0.2%
  (a) Particulates (unspecified) g 39 39 -0.1%
  (a) Sulfur Oxides (SOx as SO2) g 968 968 0%
  (a) Methane (CH4) g 28 29 5.0%
  (a) Hydrocarbons (except methane) g 13 13 0.2%
  (a) Nickel (Ni) g 2.2 2.2 0%
  (a) Chromium (Cr) g 1.8 E-03 1.8 E-03 -0.6%
  (a) Arsenic (As) g 0.45 0.45 0%
  (a) Copper (Cu) g 0.48 0.48 NO CHANGE
  (a) Cobalt (Co) g 4.9 E-02 4.9 E-02 0%
  (a) Zinc (Zn) g 8.1 E-02 8.1 E-02 0%
  (a) Lead (Pb) g 0.28 0.28 0%
  (a) Cadmium (Cd) g 3.0 E-03 3.0 E-03 0%
  (a) Mercury (Hg) g 1.6 E-02 1.6 E-02 0%
  (a) Silver (Ag) g 0.52 0.52 NO CHANGE
  (a) Metals (unspecified) g 0.23 0.23 0%
  (a) Ammonia g 5.7 5.7 0%
  (a) Chloride (Cl2) g 0.35 0.3 -14%
  (a) Dioxins (unspecified) g 3.8 E-07 3.8 E-07 NO CHANGE
  (a) VOC (Volatile Organic Compounds) g 2.2 2.2 NO CHANGE
  (a) Hydrogen Chloride (HCl) g 0.83 0.83 -0.5%
  (a) Hydrogen Cyanide (HCN) g 6.9 E-05 6.9 E-05 NO CHANGE
  (a) Hydrogen Fluoride (HF) g 4.7 E-02 4.6 E-02 -1.2%
  (a) Hydrogen Sulfide (H2S) g 2.7 E-02 2.7 E-02 0.1%
  (a) Sulfuric Acid (H2SO4) g 17 17 0%
  (w) BOD5 (Biochemical Oxygen Demand) g 1.7 1.7 NO CHANGE
  (w) COD (Chemical Oxygen Demand) g 4.2 4.2 0%
  (w) Sulfates (SO4-) g 77 77 0%
  (w) Nitrogenous Matter (unspecified, as N) g 225 225 0%
  (w) Phosphates (PO4 3-, HPO4--, H2PO4-, H3PO4, as P) g 1.1 E-02 1.1 E-02 0%
  (w) TOCs (Total Organic Compounds) g 0.23 0.23 0%
  (w) Arsenic, Total g 1.1 E-03 1.1 E-03 NO CHANGE
  (w) Arsenic, Dissolved g 4.2 E-05 4.2 E-05 NO CHANGE
  (w) Nickel, Total g 9.8 E-02 9.8 E-02 NO CHANGE
  (w) Nickel, Dissolved g 1.2 E-02 1.2 E-02 NO CHANGE
  (w) Copper, Total g 1.2 E-02 1.2 E-02 NO CHANGE
  (w) Copper, Dissolved g 2.5 E-04 2.5 E-04 NO CHANGE
  (w) Cobalt, Total g 8.5 E-03 8.5 E-03 NO CHANGE
  (w) Cobalt, Dissolved g 1.7 E-03 1.7 E-03 NO CHANGE
  (w) Zinc, Total g 1.0 E-03 1.0 E-03 0%
  (w) Zinc, Dissolved g 7.3 E-04 7.3 E-04 NO CHANGE
  (w) Lead, Total g 3.8 E-02 3.8 E-02 0.1%
  (w) Lead, Dissolved g 5.2 E-05 5.2 E-05 NO CHANGE
  (w) Mercury, Total g 7.5 E-05 7.5 E-05 NO CHANGE
  (w) Mercury, Dissolved g 1.8 E-05 1.8 E-05 NO CHANGE
  (w) Silver, Total g 1.6 E-05 1.6 E-05 NO CHANGE
  (w) Silver, Dissolved g 6.6 E-05 6.6 E-05 NO CHANGE
  (w) Cadmium, Total g 1.2 E-05 1.2 E-05 NO CHANGE
  (w) Cadmium, Dissolved g 1.6 E-05 1.6 E-05 NO CHANGE
  (w) Chromium, Total g 3.9 E-04 3.9 E-04 0%
  (w) Chromium, Dissolved g 4.1 E-05 4.1 E-05 NO CHANGE
  (w) Dioxins g 5.4 E-05 5.4 E-05 NO CHANGE
  (w) Acids, Total g 1.9 E-02 1.9 E-02 0.1%
  Solid Materials: Waste Rock and Backfill kg 72 72 NO CHANGE
  Solid Materials: Tailings and Other Process Residues kg 72 72 -0.1%
  Solid Materials: Other kg 1.1 1.4 22%
Energy: Feedstock Energy MJ 41 43 5.4%
  Fuel Energy MJ 198 200 0.8%
  Non Renewable Energy MJ 219 223 1.8%
  Renewable Energy MJ 18 18 -0.1%
  Total Primary Energy MJ 239 243 1.6%
  Note: 0% means a value less than 0.1%.


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