在城市范围内评估PM2.5空气污染的驱动因素,使用可解释的机器学习
Yali Hou1, Qunwei Wang2, Tao Tan3
1College of Information Engineering, Nanjing Xiaozhuang University, Nanjing 211171, China.
Waste management (New York, N.Y.)
|December 2, 2024
概括
中国中国中国中国.
科学领域:
- 环境科学 环境科学
- 数据科学数据科学数据科学
- 城市规划 城市规划
背景情况:
- 城市细颗粒物 (PM2.5) 污染阻碍了中国的可持续发展目标.
- 识别PM2.5驱动因素对于有效的减少污染战略至关重要.
研究的目的:
- 开发和验证一个机器学习模型来分析城市PM2.5度.
- 确定PM2.5污染的主要社会经济和工业驱动因素.
- 建议城市具体的PM2.5减少策略.
主要方法:
- 使用了 CatBoost 和树结构的 Parzen 估计器 (TPE) 机器学习模型.
- 采用了夏普利添加式解释 (SHAP) 来确定因素的重要性.
- 分析了2000年至2021年间来自中国297个城市的PM2.5数据.
主要成果:
- 该模型在预测城市PM2.5.5时获得了高准确度 (R2=96.44%).
- 社会经济因素和工业活动被确定为主要驱动因素.
- 氧化排放,技术投资,人口密度和能源消耗是2000年的重要因素.
结论:
- 为未来的污染控制,建议采取有针对性的战略,重点关注人口密度和采矿开发.
- 该框架为评估污染因素和定制减少策略提供了一个强大的工具.
- 由于减少了氧化排放,观察到空气质量的显著改善.
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