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 Tokyo, Japan Environment Agency (東京都環境局) (kankyo.metro.tokyo.lg.jp)
Note that the measurements for SO2 (sulfur dioxide), CO (carbon monoxide) and O3 (ozone) are taken from the station: Kasuya, Setagaya, Tokyo