一项研究发现,在美国2.5起与PM有关的过早死亡中,40%来自跨越州界线的污染。 40% of U.S. PM 2.5-related premature deaths stem from pollution crossing state lines, a study finds.

圣母大学的一项研究发现,尽管自1998年以来空气污染总量下降了35%,但美国每年有40%的与PM 2.5有关的过早死亡病例来自跨州污染线。 A University of Notre Dame study finds 40% of PM 2.5-related premature deaths in the U.S. each year come from pollution crossing state lines, despite a 35% drop in overall air pollution since 1998. 研究人员利用气流分析发现,一半以上的美国州出口污染,其中佛罗里达州、佛蒙特州和爱荷华州是最大的排放国,而加利福尼亚州、俄勒冈州和华盛顿州也影响到邻近区域。 Using airshed analysis, researchers identify that more than half of U.S. states export pollution, with Florida, Vermont, and Iowa among top contributors, while states like California, Oregon, and Washington also impact neighboring regions. 该工具有助于跟踪跨界污染,支持循证政策,以应对不平等的健康风险,特别是对下风社区而言。 The tool helps track transboundary pollution and supports evidence-based policies to address unequal health risks, especially for downwind communities.