用于哮喘和氯丁二烯的氢氟烷烃吸入器造成美国重大气候污染;存在低排放替代品,但往往无法获得。 HFA inhalers, used for asthma and COPD, cause major U.S. climate pollution; low-emission alternatives exist but are often inaccessible.

广泛用于哮喘和青蒿素综合症的计量吸入器是美国气候污染的一个主要来源,由于其氢氟烷(HFA)推进剂,每年产生的排放量相当于50万辆汽车。 Metered-dose inhalers, widely used for asthma and COPD, are a major source of climate pollution in the U.S., generating emissions equivalent to over half a million cars annually due to their hydrofluoroalkane (HFA) propellants. 日本医学协会发表的一份新研究报告发现,这些吸入器占2014年至2024年吸入器相关排放量的98%,共计2 490万公吨二氧化碳当量。 A new study published in JAMA found these inhalers accounted for 98% of inhaler-related emissions from 2014 to 2024, totaling 24.9 million metric tons of CO2 equivalent. 干粉和软雾吸入器不产生氢氟烷烃排放,对大多数患者来说是有效的替代品,但由于成本、保险范围和可用性,在美国很难获得。 Dry powder and soft mist inhalers, which produce no HFA emissions, are effective alternatives for most patients but face limited access in the U.S. due to cost, insurance coverage, and availability. 专家们敦促进行政策和定价改革,以扩大获得低排放选择的机会,同时不损害病人的护理。 Experts urge policy and pricing reforms to expand access to lower-emission options without compromising patient care.