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.taiki.go.jp)
Note that the measurements for PM2.5 (fine particulate matter), SO2 (sulfur dioxide) and O3 (ozone) are taken from the station: Imaichi, Nikko, Tochigi and the measurement for CO (carbon monoxide) are taken from the station: Fujihara, Nikko, Tochigi