Sida aynu wada ognahay, daahanka kabka birta enamle, ku dhawaad dhammaan macaamiishu waxay u baahan yihiin warbixinta baaritaanka badbaadada cuntada.Tusaale ahaan, FDA ROhs Ca65 Extractable 23 Biraha culus ee la saari karo (Pb, Cd), iwm. Qaar ka mid ah warshadda ma gaari karaan shuruudo, sidaas darteed waxay kaliya u isticmaalaan daaweyn gaar ah th ...
Akhri wax dheeraad ah