A baya can, tare da ci gaba da yanayin hazo a yawancin sassan ƙasar, "PM2.5" ta zama kalma mafi zafi a cikin mashahurin kimiyya.Babban dalilin "fashewa" na darajar PM2.5 a wannan lokacin shine babban watsi da sulfur dioxide, nitrogen oxides da ƙurar da aka haifar da konewa.Kamar daya daga cikin...
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