Ukuqapha ikhwalithi yamanzi okuphumelelayo kuyisici esibalulekile samasu ezempilo yomphakathi emhlabeni wonke. Izifo ezibangelwa amanzi zisalokhu ziyimbangela ehamba phambili yokufa phakathi kwezingane ezisathuthuka, zibulala cishe abantu abangu-3,800 nsuku zonke.
1. Iningi lalawa ma-death lihlotshaniswa namagciwane emanzini, kodwa i-World Health Organization (WHO) iphinde yaphawula ukuthi ukungcoliswa kwamanzi okuphuza ngamakhemikhali okuyingozi, ikakhulukazi i-lead ne-arsenic, kungenye imbangela yezinkinga zempilo zomhlaba wonke.
2. Ukuqapha ikhwalithi yamanzi kuletha izinselele eziningi. Ngokuvamile, ukucaca komthombo wamanzi kubhekwa njengesibonakaliso esihle sokuhlanzeka kwawo, futhi kunezivivinyo ezikhethekile zokuwuhlola (isb., ukuhlolwa kweSage Plate). Kodwa-ke, ukumane ulinganise ukucaca kwamanzi akukhona neze ukuhlolwa okuphelele kwekhwalithi yamanzi, futhi ukungcola okuningi kwamakhemikhali noma kwezinto eziphilayo kungase kube khona ngaphandle kokubangela izinguquko zombala ezibonakalayo.
Sekukonke, nakuba kusobala ukuthi amasu ahlukene okulinganisa nokuhlaziya kumele asetshenziswe ukudala amaphrofayili ekhwalithi yamanzi anokwethenjelwa, akukho ukuvumelana okucacile kuzo zonke izilinganiso nezici okufanele zicatshangelwe.
3. Izinzwa zekhwalithi yamanzi okwamanje zisetshenziswa kabanzi ezindleleni zokuhlola ikhwalithi yamanzi.
4. Ukulinganisa okuzenzakalelayo kubalulekile ezinhlotsheni eziningi zekhwalithi yamanzi. Ukulinganisa okuzenzakalelayo okuvamile kuyindlela engabizi kakhulu yokunikeza idatha yokuqapha enikeza ukuqonda ukuthi ngabe kukhona yini izitayela noma ukuhlobana nemicimbi ethile eyingozi kwikhwalithi yamanzi. Kwabaningi abangcolisayo ngamakhemikhali, kuyasiza ukuhlanganisa izindlela zokulinganisa ukuqinisekisa ukuba khona kwezinhlobo ezithile. I-Arsenic, isibonelo, iyinto engcolisayo ngamakhemikhali ekhona ezingxenyeni eziningi zomhlaba, futhi ukungcola kwe-arsenic emanzini okuphuza kuyinkinga ethinta izigidi zabantu.
Isikhathi sokuthunyelwe: Jan-04-2024