Table A2.
Life cycle impact assessment category values of RWH and ACH systems in 4-sotry and 19-story commercial buildings in Washington (DC) and San Francisco (SF): DC4RWH = DC 4-story RWH system; DC4ACH = DC 4-story ACH system; SF4RWH = SF 4-story RWH system; SF4ACH = SF 4-story ACH system; SF19RWH = SF 19-story RWH system; DC4RWH+ACH = DC 4-story RWH +ACH system; SF4RWH+ACH = SF 4-story RWH +ACH system; SF19RWH+ACH = SF 19-story RWH +ACH system.
| Impact category | Unit | DC4ACH | DC4RWH | DC4RWH + ACH | SF19ACH | SF19RWH | SF19RWH + ACH | SF4ACH | SF4RWH | SF4RWH + ACH |
|---|---|---|---|---|---|---|---|---|---|---|
| Acidification | kg SO2 eq | 2.9E-03 | 1.8E-03 | 1.9E-03 | 2.9E-03 | 3.9E-03 | 3.1E-03 | 3.8E-03 | 2.8E-03 | 2.7E-03 |
| Energy Demand | MJ | 1.2E + 01 | 7.0E + 00 | 7.4E + 00 | 1.2E + 01 | 1.7E+01 | 1.3E + 01 | 1.6E + 01 | 1.09E + 01 | 1.0E + 01 |
| Eutrophication | kg N eq | 2.3E-04 | 1.8E-04 | 1.8E-04 | 2.0E-04 | 2.4E-04 | 2.1E-04 | 2.7E-04 | 2.2E-04 | 2.1E-04 |
| Fossil Depletion | kg oil eq | 2.1E-01 | 1.3E-01 | 1.3E-01 | 2.2E-01 | 3.0E-01 | 2.3E-01 | 3.0E-01 | 2.0E-01 | 1.9E-01 |
| Freshwater Withdrawal | m3 | 1.5E + 00 | 6.8E-01 | 7.6E-01 | 7.3E-01 | 1.4E+00 | 8.2E-01 | 2.2E + 00 | 1.4E + 00 | 1.3E + 00 |
| Global Warming | kg CO2 eq | 5.8E-01 | 3.4E-01 | 3.6E-01 | 5.9E-01 | 8.1E-01 | 6.2E-01 | 7.7E-01 | 5.4E-01 | 5.2E-01 |
| Human Health Criteria | kg PM2.5 eq | 2.6E-04 | 1.6E-04 | 1.7E-04 | 2.5E-04 | 3.4E-04 | 2.6E-04 | 3.5E-04 | 2.5E-04 | 2.4E-04 |
| Metal Depletion | kg Fe eq | 7.6E-02 | 4.5E-02 | 4.4E-02 | 4.6E-02 | 6.9E-02 | 4.5E-02 | 1.3E-01 | 6.6E-02 | 6.1E-02 |
| Ozone Depletion | kg CFC11 eq | 9.9E-08 | 4.6E-08 | 5.2E-08 | 5.2E-08 | 1.0E-07 | 6.0E-08 | 1.3E-07 | 9.2E-08 | 8.9E-08 |
| Smog | kg O3 eq | 3.3E-02 | 1.8E-02 | 2.0E-02 | 2.9E-02 | 4.3E-02 | 3.1E-02 | 4.4E-02 | 3.0E-02 | 2.9E-02 |
| Evapo. Water Consumption | m3 H2O eq | 5.3E-04 | 5.2E-04 | 5.1E-04 | 1.2E-03 | 1.2E-03 | 1.2E-03 | 5.5E-04 | 5.2E-04 | 5.2E-04 |