PM25Vision: A Large-Scale Benchmark Dataset for Visual Estimation of Air Quality

Yang Han
9/20/2025
cs.CV

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Abstract

We introduce PM25Vision (PM25V), the largest and most comprehensive dataset to date for estimating air quality - specifically PM2.5 concentrations - from street-level images. The dataset contains over 11,114 images matched with timestamped and geolocated PM2.5 readings across 3,261 AQI monitoring stations and 11 years, significantly exceeding the scale of previous benchmarks. The spatial accuracy of this dataset has reached 5 kilometers, far exceeding the city-level accuracy of many datasets. We describe the data collection, synchronization, and cleaning pipelines, and provide baseline model performances using CNN and transformer architectures. Our dataset is publicly available.

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Cite this paper

@article{han2025pmvision,
  title  = {PM25Vision: A Large-Scale Benchmark Dataset for Visual Estimation of Air Quality},
  author = {Yang Han},
  year   = {2025},
  eprint = {2509.16519},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2509.16519v1}
}

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