美国研究人员日前在美国《科学进展》杂志上发表的一项新研究显示，每年在美国本土地区约有 2.41万例全因死亡与暴露于野火烟尘产生的细颗粒物（PM2.5）污染之间存在显著关联。 研究人员利用 2006年至2020年间美国本土地区的数据，评估了野火烟尘含有的PM2.5年均暴露水平与全因死亡率以及 多种特定原因死亡率之间的关系。 研究发现，除交通事故或跌倒等意外伤害导致的死亡外，暴露于野 火烟尘中的PM2.5与研究涉及的大多数死因的死亡率升高都存在关联。研究估算，在2006年至2020年期 间，美国本土每年约有2.41万例全因死亡与暴露于野火烟尘中的PM2.5存在显著关联。 研究还显示，全 因死亡风险随暴露于野火烟尘PM2.5水平的增加而持续上升。在研究涉及的多种特定死因中，神经系统 疾病导致的死亡风险随暴露于野火烟尘PM2.5水平增加而上升的幅度最明显。 研究人员认为，野火发生 初期可在短时间内释放大量空气污染物，并通过烟尘扩散影响数千公里之外地区的空气质量。PM2.5是 野火带来的主要污染物之一，能够深入呼吸系统，并通过肺泡进入血液循环。由于野火烟尘中的PM2.5 含有更高浓度的碳化合物和极性有机化合物，对人体的 ...

Group 1 - The core viewpoint highlights the early onset and widespread nature of ozone pollution in China this year, with a notable difference in pollution levels between northern and southern regions [1] - Source control is emphasized as a critical first step, focusing on reducing emissions from industrial enterprises and vehicles, particularly targeting nitrogen oxides and volatile organic compounds (VOCs) [1] - The promotion of low-VOC coatings and environmentally friendly production processes in industries is recommended to minimize VOC emissions [1] Group 2 - Strengthening the collaborative control of multiple pollutants, especially fine particulate matter (PM2.5) and ozone, is crucial due to their positive correlation [1] - Regional cooperation is necessary for effective pollution management, including timely sharing of information and alerts during heavy pollution events [1] - Urban spatial planning should optimize the layout of pollution sources, increase green coverage, and establish effective buffer zones to mitigate ozone's impact on residents [2] Group 3 - Research on the mechanisms of ozone formation and monitoring of precursor pollutants is essential for effective management [2] - Customized emergency control plans should be developed based on specific locations and pollution levels to manage ozone pollution peaks [2] - Individual actions towards adopting green and environmentally friendly lifestyles are necessary to reduce emissions of ozone precursor substances [2]