{"slug": "air-quality-arena-a-large-scale-multi-region-ground-monitoring-dataset-and-for", "title": "Air Quality Arena: A Large-Scale Multi-Region Ground Monitoring Dataset and Benchmark for Air Quality Forecasting with Time-Series Foundation Models", "summary": "A new benchmark, Air Quality Arena (AQA), covers 6 pollutants over 3 years across 7 countries and 4 continents, with more than 14,000 station-pollutant series, and finds that time series foundation models (TSFMs) consistently outperform classical baselines in zero-shot air quality forecasting, according to a preprint on arXiv (2607.19381v1). The top-performing model uses a cross-modal architecture leveraging a vision foundation model.", "body_md": "arXiv:2607.19381v1 Announce Type: new\nAbstract: Air pollution causes an estimated 7.9 million premature deaths annually, making accurate forecasting a critical public health priority. Machine learning is increasingly being applied to forecast air pollution levels, yet existing benchmarks remain narrow in both geographic scope and pollutant coverage, and fail to evaluate the latest generation of time series foundation models (TSFMs) on real world, large scale data. We present Air Quality Arena (AQA), a large scale multi-country and multi-pollutant dataset (AQA-Data) and benchmark (AQA-Bench) to address this gap. AQA covers 6 major pollutants over a three year period across 7 diverse countries and 4 continents, with more than 14,000 station-pollutant series, aiming to provide a comprehensive benchmark for air quality tasks. We benchmark this dataset across 11 leading time series foundation models and classical baselines to assess performance on short-term air quality forecasting. Our results demonstrate that TSFMs are effective zero-shot forecasters and consistently outperform classical baselines, with our top-performing model employing a cross-modal architecture that leverages a vision foundation model for time series forecasting. AQA is publicly released at AirQualityArena.github.io", "url": "https://wpnews.pro/news/air-quality-arena-a-large-scale-multi-region-ground-monitoring-dataset-and-for", "canonical_source": "https://arxiv.org/abs/2607.19381", "published_at": "2026-07-23 04:00:00+00:00", "updated_at": "2026-07-23 04:12:26.756601+00:00", "lang": "en", "topics": ["machine-learning", "artificial-intelligence", "ai-research"], "entities": ["Air Quality Arena", "AQA-Data", "AQA-Bench", "arXiv"], "alternates": {"html": "https://wpnews.pro/news/air-quality-arena-a-large-scale-multi-region-ground-monitoring-dataset-and-for", "markdown": "https://wpnews.pro/news/air-quality-arena-a-large-scale-multi-region-ground-monitoring-dataset-and-for.md", "text": "https://wpnews.pro/news/air-quality-arena-a-large-scale-multi-region-ground-monitoring-dataset-and-for.txt", "jsonld": "https://wpnews.pro/news/air-quality-arena-a-large-scale-multi-region-ground-monitoring-dataset-and-for.jsonld"}}