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 measurement for CO (carbon monoxide) are taken from the station: JP:小樽市/駅前交差点 and the measurement for O3 (ozone) are taken from the station: JP:札幌市手稲区/手稲