长期接触某些PM2.5颗粒会增加老年人特别是有健康问题的老年人的抑郁风险,这是对2 300多万人的研究。 Long-term exposure to certain PM2.5 particles increases depression risk in older adults, especially those with health issues, a study of over 23 million people found.

长期接触特定PM2.5成分——硫酸盐、元素碳和土壤尘埃——与老年人,特别是以前健康状况不佳的老年人的抑郁风险较高有关,这是对2 300多万人进行的一项大型研究。 Long-term exposure to specific PM2.5 components—sulphate, elemental carbon, and soil dust—is linked to higher depression risk in older adults, especially those with preexisting health conditions, a large study of over 23 million people found. 这些成分主要来自化石燃料燃烧、交通和尘埃,可能通过氧化压力、炎症和金属积累而伤害大脑。 These components, mainly from fossil fuel combustion, traffic, and dust, may harm the brain through oxidative stress, inflammation, and metal accumulation. 该研究报告发表在JAMA网络开放版上,发现其综合效应超过了仅PM2.5的总量,表明有必要制定有针对性的空气质量政策以保护弱势群体。 The study, published in JAMA Network Open, found their combined effect exceeded that of total PM2.5 alone, suggesting the need for targeted air quality policies to protect vulnerable groups.