ការព្យាករណ៍គុណភាពខ្យល់


ចំណាំថាការវាស់វែង PM 2.5 (ភាគល្អិតល្អ) ត្រូវបានយកចេញពីស្ថានីយ៍៖ JP:札幌市清田区/清田 and the measurements for PM10 (respirable particulate matter) and CO (carbon monoxide) are taken from the station: Tsukisamuchuodori, Hokkaido Prefecture and the measurement for SO2 (sulfur dioxide) are taken from the station: JP:札幌市豊平区/東月寒







