空气质量预报
空气质量数据提供者: the Japan Atmospheric Environmental Regional Observation System (環境省大気汚染物質広域監視システム) (soramame.env.go.jp)
Note that the measurements for SO2 (sulfur dioxide) and O3 (ozone) are taken from the station: Kamigawa, Suwa, Nagano and the measurement for CO (carbon monoxide) are taken from the station: Shimadachi, Matsumoto, Nagano