Table 2. The GHG emissions attributable to an individual patient undergoing first eye cataract surgery.
| Sector | Subsector | GHG emissions (kg CO2eq) | Percentage of total GHG emissions |
|---|---|---|---|
| Building energy use | Total building energy use | 65.7 | 36.1% |
| Travel | Staff commuting | 5.5 | 3.0% |
| Patient travel | 12.8 | 7.0% | |
| Total travel | 18.3 | 10.1% | |
| Procurement | Pharmaceuticals | 32.7 | 18.0% |
| Medical equipment | 59.2 | 32.6% | |
| Paper and ink | 0.9 | 0.5% | |
| Food | 0.1 | 0.0% | |
| Laundry services | 0.9 | 0.5% | |
| Information technology | 0.4 | 0.2% | |
| Water | 0.2 | 0.1% | |
| Waste | 3.4 | 1.9% | |
| Total procurement | 97.8 | 53.8% | |
| Total per patient | 181.8 kg CO2eq | 100% |