Uchungechunge olungenazo i-Mercury luyeza.

ISivumelwano saseMinamata ngeMercury, esasayinwa eKumamoto ngummeleli kahulumeni weRiphabhulikhi Yabantu baseShayina ngo-Okthoba 10, 2013. Ngokusho kweSivumelwano saseMinamata, kusukela ngo-2020, izinhlangothi ezisebenzisanayo ziye zavimbela ukukhiqizwa nokungeniswa kanye nokuthunyelwa kwemikhiqizo equkethe i-mercury.

I-Mercury iyisakhi esitholakala ngokwemvelo emoyeni, emanzini nasenhlabathini, kodwa ukusabalala kwayo emvelweni kuncane kakhulu futhi kubhekwa njengensimbi engavamile.

Ngesikhathi esifanayo, i-mercury iyisici esinobuthi kakhulu esingabalulekile, esitholakala kabanzi ezindaweni ezahlukene zemvelo kanye nasezintanjeni zokudla (ikakhulukazi izinhlanzi), futhi iminonjana yayo isakazeke emhlabeni wonke.

I-Mercury ingaqongelela ezintweni eziphilayo futhi imuncwa kalula yisikhumba, indlela yokuphefumula kanye nendlela yokugaya ukudla.

Isifo iMinamata uhlobo lobuthi be-mercury. I-Mercury ibhubhisa uhlelo lwezinzwa oluphakathi futhi inethonya elibi emlonyeni, emaqakaleni kanye namazinyo.

Ukuchayeka isikhathi eside ezindaweni ezine-mercury eningi kungabangela ukulimala kobuchopho nokufa.

Naphezu kwezinga lokubila eliphezulu le-mercury, umusi we-mercury ogcwele emazingeni okushisa asekamelweni usufinyelele isilinganiso esiphindwe kaningana somuthi onobuthi.

Isifo iMinamata uhlobo lobuthi obungapheli be-mercury, obuqanjwe ngegama lomuzi wokudoba owatholakala okokuqala ngawo-1950 eduze kwaseMinamata Bay eKumamoto Prefecture, eJapane.

Ngokwezinhlinzeko zeSivumelwano saseMinamata, iqembu likaHulumeni lizovimbela ukukhiqizwa, ukungeniswa kanye nokuthunyelwa kwemikhiqizo engezwe nge-mercury ngo-2020, isibonelo, amabhethri athile, izibani ezithile ze-fluorescent, kanye nezinye izinto zokwelapha ezingezwe nge-mercury ezifana nama-thermometer kanye nama-sphygmomanometer.

Ohulumeni Abanesivumelwano bavumile eSivumelwaneni saseMinamata ukuthi izwe ngalinye lizokwakha uhlelo lukazwelonke lokunciphisa nokuqeda kancane kancane i-mercury zingakapheli iminyaka emithathu kusukela ngosuku lokuqala kokusebenza kwesivumelwano.

I-thermometer yengilazi, egama layo lesayensi liyi-thermometer yenduku engunxantathu, iyishubhu elifushane lengilazi emzimbeni wonke, elibuthakathaka. Igazi emzimbeni wonke liyisici sensimbi esindayo esibizwa ngokuthi “i-mercury”.

Ngemva kokuthi ochwepheshe “bedonsa intamo”, “ibhamuza”, “ukuncipha komphimbo”, “ibhamuza lokuvala”, “ukuhlanganisa i-mercury”, “ikhanda lokuvala”, “iphuzu eliqondile”, “i-semicolon”, “ukuphrinta okungenayo”, “ukuhlola” “, “Ukupakisha” izinqubo ezingu-25 ezidalwe ngokucophelela, zazalwa emhlabeni. Zingachazwa ngokuthi “izinkulungwane zemizamo”.

Okucashile ukuthi phakathi kwepayipi lengilazi le-capillary kanye nebhamuza lengilazi eliphakathi, kukhona indawo encane kakhulu, ebizwa ngokuthi “ukuncipha”, futhi i-mercury akulula ukuyidlula. I-mercury ngeke yehle ngemva kokuba i-thermometer iphume emzimbeni womuntu ukuqinisekisa ukulinganiswa okunembile. Ngaphambi kokusebenzisa, abantu bavame ukuphonsa i-mercury ngaphansi kwesikali se-thermometer.

IShayina izoyeka ukukhiqiza ama-thermometer e-mercury ngo-2020.

Ukuze siqinisekise ukunemba, sisebenzisa ama-alloy esikhundleni se-mercury. Ungathola imikhiqizo engenayo i-mercury kuwebhusayithi yethu.