PollutionData

The dataset includes monthly averaged air pollutant concentration data (CO, NO₂, SO₂, and O₃) for Dhaka City from January 2020 to January 2024. These data were derived from Sentinel-5P TROPOMI satellite images using the Google Earth Engine platform. The processed data are provided in GeoTIFF format, along with a shapefile defining the administrative boundary of Dhaka City used for spatial analysis. The dataset supports spatiotemporal analysis and visualization of urban air pollution trends and patterns.本数据集包含2020年1月至2024年1月达卡市的月均空气污染物浓度数据，所涉污染物为一氧化碳（CO）、二氧化氮（NO₂）、二氧化硫（SO₂）与臭氧（O₃）。该类数据基于Sentinel-5P卫星搭载的TROPOMI传感器影像获取，并通过谷歌地球引擎（Google Earth Engine）平台完成处理与提取。处理完成的数据集以GeoTIFF格式存储，同时附带用于空间分析的达卡市行政边界shapefile矢量文件。本数据集可支撑城市空气污染趋势与分布格局的时空分析及可视化研究。