Asibesitosi yinjira mu mazi yo kunywa, ariko ingaruka z'ubuzima ntizizwi

Ubushakashatsi bwemeje ko imiyoboro yacu ya sima ishaje igenda yangirika vuba kurusha mu mahanga, kandi ko fibre ya asibesitosi yinjira mu mazi - ariko bitaragera ku rwego rushimishije. Abashakashatsi bo mu Ishuri rya Geografiya rya kaminuza ya Otago basanze "ibimenyetso bifatika" byerekana fibre ya asibesitosi mu ngero z’amazi yo kunywa yaturutse ahantu 35 bakikije Christchurch bakavuga ko ibi bizigana mu gutanga amazi mu gihugu hose. Ubushakashatsi bwavuze ko muri iki gihe Nouvelle-Zélande ifite kilometero 9000 z'imiyoboro ya asibesitosi igomba gusimburwa ku kigereranyo cya miliyari 2.2 z'amadolari. Isima ya asibesitosi yakoreshejwe mu miyoboro y'amazi ku isi kuva mu 1930 kugeza mu myaka ya za 1980, igihe byagaragaye ko bashobora kurekura fibre ya asibesitosi mu mazi igihe yangiritse. Soma birambuye: * Christchurch yiteguye gufata amazi ya fluor, ariko ikiguzi nigihe byongera ikirere * Nitrate mumazi yo kunywa irashobora guhitana abanya Nouvelle-Zélande 40 kumwaka, ubushakashatsi bwerekanye Akaroa Abanditsi b'ubushakashatsi bavuga ko umubare munini w'imiyoboro ubu urenganye ubuzima bwabo bw'ingirakamaro kandi ibyago byo gutsindwa. Umwanditsi umwe, Dr Sarah Mager yavuze ko mu bice byinshi bya Nouvelle-Zélande, amazi yatanzwe afite urugero rwa calcium na magnesium, ibyo bikaba byaratumaga imiyoboro ya sima ya asibesitosi igabanuka ku kigero cyo hejuru kandi ikarekura fibre nyinshi za asibesitosi. "Igipimo cy'iri ruswa kirihuta cyane, ku buryo imiyoboro ibora imbere imbere byihuse kuruta ingero z'amahanga." Mu bushakashatsi bwa Christchurch, fibre ya asibesitosi yagaragaye mu byitegererezo 19 by’ahantu 20 hashyirwa umuriro hamwe na bitatu kuri 16 byo mu rugo. Ayo mafaranga ntiyarenze urwego rw’umutekano ukurikije amabwiriza y’Amerika - igihugu cyonyine gifite umurongo ngenderwaho wa asibesitosi mu mazi yo kunywa. Laboratoire mpuzamahanga y’inzobere muri Amerika yasesenguye urugero rw’amazi yavuye muri Christchurch mu byo abashakashatsi bavuga ko ari ubwa mbere isuzumye neza isuri ry’amazi ava mu miyoboro ya asibesitosi yo muri Nouvelle-Zélande ishaje. Njyanama y’Umujyi wa Christchurch yari yarigeze gutoranya hydrants 17 ya fibre ya asibesitosi muri 2017 ikayisanga muri imwe.Nyamara, abanditsi b’ubushakashatsi bavuga ko uburyo bwo gusesengura bwakoreshejwe butari buhagije. Mu gihe ingaruka ziterwa na asibesitosi zo mu kirere nka kanseri zizwi, ingaruka z’ubuzima bwo kuyifata ntizarangira kandi nta tegeko ryashyizweho ryo kugabanya fibre ya asibesitosi mu mazi yo kunywa muri Nouvelle-Zélande. Raporo yasohowe n’ikinyamakuru mpuzamahanga cy’amazi yo gutanga amazi, ivuga ubushakashatsi buherutse gukorwa bwerekana isano iri hagati ya asibesitosi yatewe ndetse n’ikwirakwizwa rya kanseri yo mu gifu no mu mara, ndetse no kuba hari asibesitosi mu ngingo zo mu gifu. Ishami ry'Umuryango w'Abibumbye ryita ku Buzima, Amabwiriza agenga imicungire y’amazi meza yo muri Nouvelle-Zélande hamwe n’amabwiriza y’amazi yo kunywa muri Ositaraliya avuga ko ku isi hose nta makuru ahagije yo guhuza ubuzima na asibesitosi mu mazi yo kunywa. Nubwo bimeze bityo ariko, abanditsi banditse ubushakashatsi bavuga ko ingaruka za asibesitosi ku mazi yo kunywa zitigeze zikorwa bihagije. "Isano ry'ibyorezo hagati ya fibre ya asibesitosi mu mazi yo kunywa no kwandura kanseri irashobora gushirwaho ari uko amakuru yerekeye fibre ya asibesitosi abaho: aya makuru ntabwo akusanywa bisanzwe." Imiyoboro ya sima ya asibesitosi izwiho kuba yoroshye muri nyamugigima kuko yoroshye kandi yangiritse byoroshye. Ubushakashatsi bwerekanye ko fibre nyinshi za asibesitosi zabonetse mu nkengero z’umujyi w’iburasirazuba, aho washyizwemo imiyoboro y’ubutaka kavukire aho kuba amabuye. Aka gace karagize amazi menshi mu butaka bw’umutingito wa Canterbury wa 2011. Tim Drennan, umuyobozi w’agateganyo w’amazi atatu mu Nama Njyanama y’Umujyi wa Christchurch, yavuze ko kuva muri za 90 habaye kwiyongera muri "gahunda zo kuvugurura ibintu" kandi umujyi ukaba ufite 21% by’amazi y’amazi gusa Imiyoboro ni imiyoboro ya sima ya asibesitosi. "Ni ngombwa kongera gushimangira ko imiyoboro ya sima ya asibesitosi mu muyoboro w’amazi idatera ibibazo by’ubuzima byihuse." Drennan yavuze ko akanama kayobora "inzira yo gushyira imbere ibyago" isuzuma uburyo gutsindwa bigira ingaruka ku baturage muri rusange. Drennan yavuze ko ibyinshi mu kuvugurura imiyoboro y'amazi inama njyanama yateganije mu myaka 27 iri imbere izaba imiyoboro ya sima ya asibesitosi. Bitewe n'icyitegererezo gito, abanditsi ntibashoboye kumenya niba ibyangijwe n'umutingito no gutemba muri Christchurch bivuze ko amazi yo muri uyu mujyi yari afite fibre nyinshi za asibesitosi kurusha utundi turere. Icyakora, barasaba ko inama zose "zikurikirana amazi yatanzwe kuri fibre ya asibesitosi, cyane cyane ko iyo miyoboro igera ku iherezo ry’ubuzima bwabo bw'ingirakamaro, kugira ngo hamenyekane gusaza kw'imiyoboro no gushyira imbere gusimbuza ibice by'imiyoboro". Umwanditsi umwe witwa Michael Nopic yagize ati: "Iki ni ikibazo cy’igihugu kuko imiyoboro ya sima-asibesitosi ifite imyaka ingana kandi yashyizweho - bityo rero birakwiriye gutekereza ko abandi bo muri Nouvelle-Zélande bazagira igipimo kimwe cyo kurekura asibesitosi". "Ikigaragara ni munsi y'ubutaka, cyihishe, kandi ntitubitekerezaho kugeza igihe bitagenda."