连续美国 (2012-2019) 的夜间县级人造光 (ALAN):空间变化,时间趋势和环境正义分析
Qian Xiao1,2, Meng Zhou3, Yue Lyu4
1Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, The University of Texas Health Science Center at Houston, Houston, TX, 77030, USA. qian.xiao@uth.tmc.edu.
Environmental science and pollution research international
|October 28, 2023
概括
在美国一些地区,夜间人工光线 (ALAN) 增加,少数民族社区的下降幅度较小,光污染差距扩大. 这凸显了有针对性的环境和公共卫生政策的需要.
科学领域:
- 环境科学 环境科学
- 公共卫生 公共卫生
- 遥感 遥感 遥感 遥感
背景情况:
- 夜间的人工光 (ALAN) 带来环境和公共健康风险.
- 处境不利的社区经常面临较高的光污染负担.
- 了解ALAN的时空模式和人口联系对政策至关重要.
研究的目的:
- 描述ALAN在美国各县的地理分布和时间趋势 (2012-2019).
- 确定与ALAN模式相关的人口和社会经济因素.
- 调查种族/种族群体在ALAN趋势中的差异.
主要方法:
- 利用来自黑色大理石套件的卫星数据进行ALAN的表征.
- 分析了所有连续的美国县的ALAN时空模式.
- 与县级人口统计数据相关的ALAN趋势,包括种族/民族组成.
主要成果:
- ALAN显示了美国各县的显著时空差异.
- 大都会和沿海地区的ALAN水平通常较高.
- 少数民族人口较多的县,尤其是西班牙裔,ALAN下降幅度较小,差距越来越大.
结论:
- 美国各地的ALAN模式有很大差异,在一些农村地区显著增加.
- 在2012年至2019年期间,ALAN差异扩大,特别是影响少数群体.
- 需要进一步的研究来了解推动这些ALAN差异的因素.
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