MAC inhaled agent | Atmospheric lifetime (years) | Global warming potential (GWP100) (in comparison CO2) | Equivalent auto miles* driven per MAC-hour of anesthetic use at 1 L/min |
Isoflurane 1.2% | 3.5 | 539 | 7 |
Sevoflurane 2.2% | 1.4 | 144 | 4 |
Desflurane 6.7% | 14 | 2590 | 178 |
60% Nitrous oxide (0.6 MAC) | 114 | 273 | 44 |
MAC: mean alveolar concentration.
* Based on EPA 2022 emission factor of 4.03 × 10–4 metric tons of CO2 equivalent/mile.Do you want to add Medilib to your home screen?