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.

本数据集涵盖2020年1月至2024年1月达卡市的月均空气污染物浓度数据，包含一氧化碳（CO）、二氧化氮（NO₂）、二氧化硫（SO₂）及臭氧（O₃）四类污染物。该类数据依托谷歌地球引擎（Google Earth Engine）平台，从哨兵-5P对流层监测仪（Sentinel-5P TROPOMI）卫星影像中提取得到。经预处理后的数据集以GeoTIFF格式存储，同时附带用于空间分析的达卡市行政边界矢量shapefile文件。本数据集可支撑城市空气污染时空趋势与分布格局的分析及可视化工作。