Ngaphambilini, ngesimo sezulu esinenkungu esiqhubekayo ezingxenyeni eziningi zezwe, i-“PM2.5” isibe igama elishisa kakhulu kusayensi edumile.Isizathu esiyinhloko “sokuqhuma” kwenani le-PM2.5 ngalesi sikhathi ukukhishwa okukhulu kwe-sulphur dioxide, ama-nitrogen oxides nothuli olubangelwa ukushiswa kwamalahle.Njengomunye we...
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