美国哮喘吸入器(多数为计量吸入器类型)每年排放相当于50万辆汽车的气候升温污染物,自2014年以来,排放量上升了24%。 U.S. asthma inhalers, mostly metered-dose types, emit climate-warming pollutants equivalent to half a million cars yearly, with emissions rising 24% since 2014.

广泛用于哮喘的计量吸入器是气候污染的一个主要来源,原因是其氢氟烷(HFA)推进剂,其全球升温潜能值比CO2高数千倍。 Metered-dose inhalers, widely used for asthma, are a major source of climate pollution due to their hydrofluoroalkane (HFA) propellants, which have a global warming potential thousands of times greater than CO2. 一项新的研究发现,美国吸入器的使用每年产生2 490万公吨二氧化碳当量,相当于50万辆汽车,2014年至2024年增长了24%,其中计量吸入器占排放量的98%。 A new study finds U.S. inhaler use generated 24.9 million metric tons of CO2 equivalent annually—equivalent to half a million cars—rising 24% from 2014 to 2024, with MDIs responsible for 98% of emissions. 干粉吸入器等替代物将排放量减少68%以上,并且已被《VA》等系统采用,但由于病人的适宜性、成本和保险障碍,获取途径仍然有限。 Alternatives like dry-powder inhalers reduce emissions by over 68% and are already being adopted by systems like the VA, though access remains limited due to patient suitability, cost, and insurance barriers. 专家敦促扩大更环保的选项, Experts urge expanding greener options to cut healthcare’s carbon footprint without compromising care.