城市环境空气质量日数据

是经自主加工后形成全面、系统且具有时效性的空气质量信息汇总，可直观反映不同城市在特定时间段内的空气质量状况，为AI模型在环境预测、污染溯源、智能预警等场景下的建模与优化提供高质量、可计算的数据支撑。

This dataset is a comprehensive, systematic and time-sensitive collection of air quality information independently processed. It can intuitively reflect the air quality conditions of different cities within specific time periods, providing high-quality and computable data support for the modeling and optimization of AI models in scenarios including environmental prediction, pollution source tracing and intelligent early warning.