Cai Zhenhang, Newman Galen, McNair Michael, Zheng Jiang, Shin Jiyeon, Malecha Matthew, Yu Siyu, Meyer Michelle Annette
Department of Landscape Architecture and Urban Planning, Texas A&M University, College Station, Texas, USA.
Sustain Clim Chang. 2025 Aug;18(4):290-302. Epub 2025 Aug 22.
This study advances the Toxics Mobility Inventory (TMI) and the Toxics Mobility Vulnerability Index (TMVI) to develop a new tool to assess the movement of hazardous substances and their implications for vulnerable communities. It emphasizes the need to include contamination distribution variables in such indices to address disproportionate impacts and more accurately reflect vulnerability. The study uses the TMI framework and TMVI methodology in the Beaumont-Port Arthur region of Texas, also integrating contamination distribution considerations into the analysis to develop a new framework and process. The new Contamination Distribution Centered Toxics Mobility Vulnerability Index (CDC-TMVI) consolidates climate change and topography variables into a broader built environment vulnerability category while introducing a contamination sources category. Using ArcGIS Pro and ToxPi tools, the study evaluates 27 geospatial variables across four categories: built environment vulnerability, social vulnerability, health outcomes, and contamination sources. The results indicate significant contributions from contamination and social vulnerability variables, highlighting areas with higher risks of flooding and air pollution. This article advocates for future research and policy efforts to enhance the integration of contamination sources and their spatial distributions into toxics mobility assessments to better protect vulnerable populations. The unique methodology and findings serve as a basis for developing targeted measures and strategic planning to improve environmental health.
本研究推进了有毒物质流动性清单（TMI）和有毒物质流动性脆弱性指数（TMVI），以开发一种新工具，用于评估有害物质的移动及其对脆弱社区的影响。它强调需要在此类指数中纳入污染分布变量，以应对不均衡的影响，并更准确地反映脆弱性。该研究在得克萨斯州博蒙特 - 亚瑟港地区使用了TMI框架和TMVI方法，还将污染分布考虑因素纳入分析，以开发一个新的框架和流程。新的以污染分布为中心的有毒物质流动性脆弱性指数（CDC - TMVI）将气候变化和地形变量整合到一个更广泛的建成环境脆弱性类别中，同时引入了污染源类别。利用ArcGIS Pro和ToxPi工具，该研究评估了四个类别的27个地理空间变量：建成环境脆弱性、社会脆弱性、健康结果和污染源。结果表明，污染和社会脆弱性变量有显著贡献，突出了洪水和空气污染风险较高的地区。本文主张未来开展研究和政策努力，以加强将污染源及其空间分布纳入有毒物质流动性评估，从而更好地保护脆弱人群。独特的方法和研究结果为制定针对性措施和战略规划以改善环境卫生奠定了基础。
