来自不同排放源的颗粒物空气污染,印度的认知表现和认知下降
Boya Zhang1, Sara D Adar2, Emma Nichols3
1University of Michigan School of Public Health, United States; Harvard T. H. Chan School of Public Health, United States.
Environment international
|October 4, 2025
概括
暴露于细颗粒物 (PM2.5) 加快了低收入国家的认知衰退. 减少住宅燃烧源的排放可能有助于预防痴呆症并促进健康的衰老.
科学领域:
- 环境健康 环境健康
- 神经科学是一个神经科学.
- 流行病学 流行病学
背景情况:
- 低收入和中等收入国家面临着高度的细颗粒物 (PM2.5) 暴露.
- 来自住宅燃烧,工业和交通运输的PM2.5正在增加.
- 在这些地区,PM2.5来源与认知衰退之间的联系未得到充分研究.
研究的目的:
- 研究来自各种排放源的PM2.5与认知表现之间的关联.
- 确定长期暴露于PM2.5对印度认知能力下降的影响.
- 确定有助于认知障碍的特定PM2.5来源.
主要方法:
- 利用印度长度衰老研究 (LASI-DAD) 波浪 (2017-2019, 2022-2024) 的认知数据.
- 从总质量和9个排放源中估计的5年平均PM2.5度.
- 采用通用估计方程模型,调整多个共变量.
主要成果:
- 总体PM2.5暴露与随着时间的推移更快的认知衰退有关.
- 来自能源生产,工业和住宅燃烧的PM2.5与更的认知衰退相关.
- 来自农业,交通,野火和风吹尘埃的PM2.5显示与认知衰退的反向关联.
结论:
- 长期暴露于环境PM2.5,特别是来自住宅燃烧,加速认知能力下降.
- 针对住宅PM2.5来源的干预措施可以减轻痴呆风险.
- 减少PM2.5暴露可能会在低收入和中等收入环境中促进更健康的衰老.
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