Original Research Confounding associations between green space and outdoor artificial light at night: Systematic investigations and implications for urban health  

作　　者：Yang Liu Mei-Po Kwan Jianying Wang Jiannan Cai 

机构地区：[1]Department of Geography and Resource Management,The Chinese University of Hong Kong,Hong Kong,China [2]Institute of Space and Earth Information Science,The Chinese University of Hong Kong,Hong Kong,China [3]Institute of Future Cities,The Chinese University of Hong Kong,Hong Kong,China

出　　处：《Environmental Science and Ecotechnology》2024年第5期341-349,共9页环境科学与生态技术（英文）

基　　金：supported by grants from the Hong Kong Research Grants Council(General Research Fund Grant no.14605920,14611621,14606922;Collaborative Research Fund Grant no.C4023-20GF;Research Matching Grants RMG 8601219,8601242);a grant from the Research Committee on Research Sustainability of Major Research Grants Council Funding Schemes(3133235)of the Chinese University of Hong Kong.

摘　　要：Excessive urbanization leads to considerable nature deficiency and abundant artificial infrastructure in urban areas,which triggered intensive discussions on people's exposure to green space and outdoor artificial light at night(ALAN).Recent academic progress highlights that people's exposure to green space and outdoor ALAN may be confounders of each other but lacks systematic investigations.This study investigates the associations between people's exposure to green space and outdoor ALAN by adopting the three most used research paradigms:population-level residence-based,individual-level residencebased,and individual-level mobility-oriented paradigms.We employed the green space and outdoor ALAN data of 291 Tertiary Planning Units in Hong Kong for population-level analysis.We also used data from 940 participants in six representative communities for individual-level analyses.Hong Kong green space and outdoor ALAN were derived from high-resolution remote sensing data.The total exposures were derived using the spatiotemporally weighted approaches.Our results confirm that the negative associations between people's exposure to green space and outdoor ALAN are universal across different research paradigms,spatially non-stationary,and consistent among different socio-demographic groups.We also observed that mobility-oriented measures may lead to stronger negative associations than residence-based measures by mitigating the contextual errors of residence-based measures.Our results highlight the potential confounding associations between people's exposure to green space and outdoor ALAN,and we strongly recommend relevant studies to consider both of them in modeling people's health outcomes,especially for those health outcomes impacted by the co-exposure to them.

关 键 词：Green space Outdoor ALAN CO-EXPOSURE CONFOUNDING Mobility Spatial non-stationarity 

分 类 号：R12[医药卫生—环境卫生学]