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 Saitama Prefecture EPA (埼玉県の大気状況) (taiki-kansi.pref.saitama.lg.jp)
Note that the measurement for CO (carbon monoxide) are taken from the station: Kamitoda, Toda, Saitama