Ukuqapha izinga lamanzi okusebenzayo kuyisici esibalulekile samasu ezempilo yomphakathi emhlabeni wonke.Izifo ezibangelwa amanzi zisalokhu ziyimbangela ehamba phambili yokufa kwezingane ezisakhula, ezibulala cishe izimpilo ezingu-3,800 nsuku zonke.
1. Abaningi balaba bantu abafayo baye bahlanganiswa namagciwane emanzini, kodwa i-World Health Organization (WHO) iphinde yaphawula ukuthi ukungcoliswa kwamakhemikhali ayingozi emanzini okuphuza, ikakhulukazi umthofu ne-arsenic, kungenye imbangela yezinkinga zempilo emhlabeni wonke.
2. Ukuqapha izinga lamanzi kubangela izinselele eziningi.Ngokuvamile, ukucaca komthombo wamanzi kuthathwa njengenkomba enhle yokuhlanzeka kwawo, futhi kukhona izivivinyo ezikhethekile zokuwuhlola (isb, ukuhlolwa kwe-Sage Plate).Nokho, ukumane ulinganise ukucaca kwamanzi akukona neze ukuhlola okuphelele kwekhwalithi yamanzi, futhi ukungcola okuningi kwamakhemikhali noma kwebhayoloji kungase kube khona ngaphandle kokubangela izinguquko eziphawulekayo zemibala.
Sekukonke, nakuba kusobala ukuthi amasu ahlukene okulinganisa nokuhlaziya kufanele asetshenziselwe ukwakha amaphrofayili athembekile ekhwalithi yamanzi, akukho ukuvumelana okucacile kuyo yonke imingcele nezici okufanele zicatshangelwe.
3. Izinzwa zekhwalithi yamanzi okwamanje zisetshenziswa kabanzi ezindleleni zokuhlola izinga lamanzi.
4. Ukulinganisa okuzenzakalelayo kubalulekile ezinhlelweni eziningi zekhwalithi yamanzi.Izilinganiso ezizenzakalelayo ezijwayelekile ziyindlela engabizi kakhulu yokuhlinzeka ngedatha yokuqapha enikeza ukuqonda kokuthi akhona yini amathrendi noma ukuhlobana nezehlakalo ezithile eziyingozi kwikhwalithi yamanzi.Ngokungcola kwamakhemikhali amaningi, kuyasiza ukuhlanganisa izindlela zokulinganisa ukuze kuqinisekiswe ukuba khona kwezinhlobo ezithile zezilwane.Ngokwesibonelo, i-arsenic iwukungcola kwamakhemikhali okukhona ezingxenyeni eziningi zomhlaba, futhi ukungcola kwe-arsenic emanzini okuphuza kuyinkinga ethinta izigidi zabantu.
Isikhathi sokuthumela: Jan-04-2024