Skip to main content

Table 4 Greenhouse gas (GHG) emissions from low intensity or regular inpatient unit (Acute Care Unit) and high intensity unit (ICU); *denotes those data inputs that were allocated using either a floor area allocation or a staff intensity allocation

From: Environmental footprint of regular and intensive inpatient care in a large US hospital

GHG emissions per bed day (kg CO2-e) Acute care unit (floor area allocation) Acute care unit (staff allocation) ICU (floor area allocation) ICU (staff allocation)
Energy* 30.8 21.6 30.5 45.8
Water* 0.3 0.2 0.3 0.4
Waste 3.4 3.4 4.3 4.3
Consumables 12.0 12.0 44.4 44.4
Medical gases* 2.4 1.7 2.4 3.6
Equipment 6.5 6.5 38.9 38.9
Food 13.8 13.8 13.8 13.8
Staff travel 4.9 4.9 10.4 10.4
Total CO2-e 55.4 45.5 120.8 137.5
Resource use per bed day Acute care unit (floor area allocation) Acute care unit (staff allocation) ICU (floor area allocation) ICU (staff allocation)
Water direct total, m3* 0.5 0.3 0.5 0.7
Waste total, kg 5.5 5.5 7.1 7.1
Hazardous waste, kg 0.9 0.9 0.8 0.8
Non-hazardous waste, kg 4.7 4.7 6.3 6.3