Markii hore, iyada oo cimilo cidhiidhi ah oo joogto ah meelo badan oo dalka ah, "PM2.5" ayaa noqday ereyga ugu kulul ee sayniska caanka ah.Sababta ugu weyn ee "qaraxa" ee qiimaha PM2.5 wakhtigan waa qiiqa weyn ee sulfur dioxide, nitrogen oxides iyo boodhka ay keento gubasho dhuxusha.Sida mid ka mid ah...
Akhri wax dheeraad ah