
Lưu ý phép đo PM 2.5 (hạt bụi mịn) được lấy từ trạm: Ko, Chikusei, Ibaraki and the measurements for PM10 (respirable particulate matter), NO2 (nitrogen dioxide), SO2 (sulfur dioxide) and CO (carbon monoxide) are taken from the station: Shirasagi, Tochigi





