대기질 예보
대기질 데이터 제공: 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) and the Hokkaido Prefecture EPA (北海道) (pref.hokkaido.lg.jp)
Note that the measurements for PM10 (respirable particulate matter), NO2 (nitrogen dioxide) and SO2 (sulfur dioxide) are taken from the station: JP:函館市/中部小学校 and the measurement for O3 (ozone) are taken from the station: Mihara, Hakodate, Hokkaido Prefecture