Dataset: Air Quality Dataset for Lanzhou (2022-08-01 to 2026-02-18)

This dataset contains historical air quality time series for Lanzhou covering 2022-08-01 to 2026-02-18. It includes key air pollution indicators such as AQI indices and major pollutants, plus city metadata including coordinates, administrative areas, and population. Use this dataset to analyze long-run air quality trends in Lanzhou, compare Lanzhou with other cities, and build models that link air quality to urban characteristics. Air quality values are retrieved from the Open-Meteo Air Quality service using the cams_global domain, and city metadata is derived from the GeoNames city list. Nitiraj Kulkarni本数据集包含兰州地区2022年8月1日至2026年2月18日的历史空气质量时序数据。其涵盖空气质量指数（AQI）、主要污染物等核心空气污染指标，同时包含城市元数据（metadata），具体包括坐标、行政区划与人口信息。可利用本数据集开展兰州长期空气质量趋势分析、兰州与其他城市的对比研究，以及构建关联空气质量与城市特征的模型。空气质量数据通过搭载cams_global域的Open-Meteo空气质量服务（Open-Meteo Air Quality service）获取，城市元数据源自GeoNames城市名录（GeoNames city list）。本数据集的作者为Nitiraj Kulkarni