<prompt> Fingqa isihloko: Lapho kunodaka khona ngempela kunethusi ososayensi abathi izigidi zingenziwa ngokukhishwa kwegolide emfucumfucwini yabantu. Eqinisweni, ngaphandle kwegolide, indle iqukethe i - platinum, isiliva nezinye izinsimbi kanye nezinto ezingavamile njenge - palladium ne - vanadium. Manje abacwaningi banethemba lokumba amanzi angcolile okunciphisa isidingo sokumba izinsimbi ezingavuthiwe emhlabathini, ngesikhathi esifanayo banciphise ukungcoliswa komhlaba ngokuvuselela udoti wabantu. Ososayensi baye bathola igolide eliyigugu lezinto eziyigugu emathunjini abantu. Abacwaningi baseMelika bacwaninga ngezindlela zokukhipha amaminerali ayigugu, kuhlanganise igolide, isiliva nezinto ezingavamile njenge-palladium ne-vanadium. Lesi sithombe sibonisa izinhlayiya ezincane ezicebile ngegolide nomthofu ezikwezindle zabantu. Bethatha isifundo emayini yezimboni, ososayensi bazama amakhemikhali abizwa ngokuthi ama-leachate asetshenziselwa ukukhipha izinsimbi emadwaleni. Amanye ala makhemikhali anedumela elibi ngenxa yokulimaza imvelo lapho evuza noma etheleka endaweni ezungezile. Kodwa ngaphansi kwezimo ezilawulwayo, zingase zisetshenziswe ngokuphepha ukuze kutholakale izinsimbi emfucumfucwini eqinile elashwayo, kusho uDkt. Smith. Emfucumfucwini esetshenzisiwe, abacwaningi base beqalile kakade ukuthola izinsimbi ezinjenge-platinum, isiliva negolide ngokubheka izinhlayiya zensimbi ezincane kakhulu kuma-biosolids. Ucwaningo lwangaphambilini lwalulinganisela ukuthi imfucumfucu evela kubantu baseMelika abayisigidi esisodwa ingaba nezinsimbi ezibiza amaRandi ayizigidi ezingu-15. Ngo-1999 i-UK yakhiqiza amathani angaphezu kuka-1 130 000 ezinhlayiya ezomile zodaka, okuyisilinganiso samakhilogremu angu-20 akhiqizwa umuntu ngamunye. Uma imfucumfucu yaseBrithani ibingakhishwa emayini, ibingaba nenani lamaRandi ayizigidi ezingu-120 ngonyaka. UDkt. Kathleen Smith we-U.S. Geological Survey wathi: Uma ungakwazi ukuqeda ezinye zezitshalo eziphazamisayo okwamanje ezivimbela inani lalezi zinto eziqinile esingazisebenzisa emasimini nasemahlathini, futhi ngesikhathi esifanayo uthole izinsimbi eziyigugu nezinye izakhi, lokho kuyinzuzo kubo bonke. Kukhona izinsimbi yonke indawo. Zikhona emikhiqizweni yokunakekela izinwele, emishinini yokuhlanza, ngisho nasezinhlayiyeni ezincane ezifakwa emasokeni ukuze kuvinjelwe iphunga elibi. Kodwa bonke bagcina besemsebenzini wokukhuculula indle futhi...  <response>: Ososayensi bafuna izindlela zokukhipha amaminerali ayigugu emfucumfucwini. Lezi zihlanganisa igolide, isiliva nezakhi ezinjenge - palladium ne - vanadium. Imfucumfucu evela kubantu baseMelika abayisigidi ingaqukatha amaRandi ayizigidi ezingu-12 Imfucumfucu yaseBrithani ilinganiselwa ku-762 million 510 million ngonyaka. 