Optimizing air quality monitoring spatial layout by maximizing the coverage of the population in Beijing-Tianjin-Hebei and surrounding areas.

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Science of the Total Environment Pub Date : 2024-12-10 Epub Date: 2024-10-18 DOI:10.1016/j.scitotenv.2024.177029

Jingxin Xi, Bo Zhang, Yufeng Yang

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Abstract

The spatial layout of the air quality monitoring network (AQMN) is crucial for objective, accurate, and comprehensive air quality assessment. The current technical standard specified the minimum quantity requirements for air quality monitoring sites, but there were no standards to specify the spatial of monitoring sites. This study proposed a novel framework to evaluate and optimize the spatial layout of AQMN. First, this study proposed three indicators to evaluate the performance of the current AQMN. They were monitoring area repetition rate, population coverage rate, and correlations. The assessment of AQMN in Beijing-Tianjin-Hebei and surroundings areas (BTHs) showed the overall monitoring area repetition rate and population coverage rate was 81.07 % and 35.5 %, respectively, which means the current AQMN in BTHs has very high monitoring repeatability and limited population coverage. Secondly, a large-scale linear programming model was built to optimize the spatial layout and determine the spatial location of 279 newly added monitoring sites in BTHs according to the Environmental Monitoring 14th Five-Year Plan of China. The optimization results showed that the optimized AQMN covered 97 million additional people, and the population coverage rate increased to 49.5 %. The proposed framework provided a valuable tool to evaluate and optimize AQMN and could be a potential solution for developing new technical standards of AQMN.

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优化空气质量监测空间布局，最大限度覆盖京津冀及周边地区人口。

空气质量监测网（AQMN）的空间布局对于客观、准确和全面的空气质量评估至关重要。现行技术标准规定了空气质量监测点的最低数量要求，但没有规定监测点空间布局的标准。本研究提出了评估和优化空气质量监测网空间布局的新框架。首先，本研究提出了评估当前空气质量监测网性能的三个指标。它们分别是监测区域重复率、人口覆盖率和相关性。对京津冀及周边地区（BTHs）空气质量监测网的评估表明，总体监测区域重复率和人口覆盖率分别为 81.07 % 和 35.5 %，这意味着当前京津冀及周边地区的空气质量监测网具有很高的监测重复率和有限的人口覆盖率。其次，根据《中国环境监测 "十四五 "规划》，建立了大规模线性规划模型，优化了空间布局，确定了北京高校新增 279 个监测点的空间位置。优化结果表明，优化后的空气质量监测网覆盖人口增加了 9700 万，人口覆盖率提高到 49.5%。所提出的框架为评估和优化空气质量监测网提供了有价值的工具，可作为制定新的空气质量监测网技术标准的潜在解决方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.