Comparing the CO2 emissions of metered dose inhalers and dry powder inhalers: a cross-sectional environmental impact analysis of asthma and COPD therapies in South Tyrol, Italy
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View abstract on PubMed
Summary
This summary is machine-generated.Switching from metered dose inhalers (MDIs) to dry powder inhalers (DPIs) can significantly reduce the carbon footprint of respiratory care. This transition offers a viable strategy for climate change mitigation in healthcare settings.
Area Of Science
- Environmental Science
- Public Health
- Respiratory Medicine
Background
- Metered dose inhalers (MDIs) and dry powder inhalers (DPIs) are crucial for managing asthma and COPD.
- Current MDIs, utilizing hydrofluoroalkane (HFA) propellants, contribute substantially to healthcare-related carbon dioxide-equivalent (CO2eq) emissions.
- Quantifying this environmental impact is essential for developing sustainable respiratory care strategies.
Purpose Of The Study
- To quantify the carbon footprint of inhaler utilization in South Tyrol, Italy.
- To evaluate the potential CO2eq emission reductions achievable by transitioning from MDIs to DPIs.
- To assess the feasibility of DPIs as a climate change mitigation strategy in respiratory care.
Main Methods
- A cross-sectional analysis of inhaler prescription data from South Tyrol (2021-2022) was conducted.
- CO2eq emissions from MDIs were calculated based on HFA content and global warming potentials.
- Emissions from DPIs were estimated using existing literature values.
Main Results
- In 2021 and 2022, over 100,000 inhalers were dispensed annually in South Tyrol.
- MDIs accounted for approximately 1000-1100 tonnes of CO2eq emissions per year.
- DPIs contributed less than 55 tonnes of CO2eq annually, indicating substantial reduction potential.
Conclusions
- Transitioning patients who can use them from MDIs to DPIs can significantly mitigate the global warming potential of respiratory care.
- This shift presents a practical approach to climate change mitigation within the healthcare sector.
- Developing MDIs with lower global warming potential propellants is a complementary strategy for further environmental benefit.
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