Umushakashatsi w’Umufaransa yashishikarije abantu kumenya akaga k’inshinge zityaye muri laboratwari nyuma y’impanuka ikomeye yatewe n’amazi asanzwe aturuka mu ruganda. Ubu arasaba ko hashyirwaho uburyo bwo gusimbuza inshinge mu kohereza inshinge cyangwa ibikoresho bivura kugira ngo hongerwe umutekano wa laboratwari.
Muri Kamena 2018, umunyeshuri w’imyaka 22 witwa Nicolas yakoraga muri laboratwari ya Sebastien Vidal muri Kaminuza ya Lyon 1. Yasutse seringe ya dichloromethane (DXM) mu icupa maze ayitobora urutoki ku bw’impanuka. Vidal yabaze ko ibitonyanga bibiri cyangwa munsi ya mikorolitero 100 za DXM byasigaye mu rushinge bijya mu rutoki.
Amafoto menshi agaragaza ibyakurikiyeho - inkuru y'ikinyamakuru iraburira ko bamwe bashobora gusanga ayo mashusho (ari hepfo) ateye impungenge. Nyuma y'iminota 15 Nicolas atewe urushinge, yagize akadomo k'umuhengeri ku rutoki rwe. Nyuma y'amasaha abiri, impande z'udupira tw'umuhengeri zatangiye kwijima, bigaragaza ko hatangiye kubaho necrosis - urupfu rw'uturemangingo. Muri iki gihe, Nicholas yitotombye ko intoki ze zari zishyushye kandi ko atashoboraga kuzihindura.
Nicholas byamusabye kubagwa byihutirwa kugira ngo akize urutoki rwe. Abaganga, babanje gutekereza ko agomba gucibwa, bashoboye gukuraho uruhu rwari rwapfuye rwari rukikije igikomere cy’icyuma maze bongera kubaka urutoki bakoresheje agashinge k’uruhu kari mu kuboko kwa Nicholas. Nyuma uyu muganga yibutse ko mu myaka 25 yamaze akora mu byumba by’ubutabazi, atari yarigeze abona imvune nk’iyo.
Intoki za Nicholas ubu zigeze hafi yo gusubira mu buzima busanzwe, nubwo gucuranga gitari kwe byagize ikibazo cyo kwangirika kw'imitsi ye, bigatuma imbaraga ze n'ubuhanga bwe bigabanuka.
DCM ni imwe mu miti ikoreshwa cyane mu byuma bisukura umubiri muri laboratwari za chimie zikozwe mu buryo bwa synthetic. Amakuru ku byago bya DCM hamwe n'urupapuro rwayo rw'amakuru ajyanye n'umutekano w'ibikoresho (MSDS) bitanga ibisobanuro birambuye ku bijyanye no gukora ku maso, gukora ku ruhu, kurya no guhumeka, ariko ntabwo ari mu gutera urushinge, nk'uko Vidal yabitangaje. Mu iperereza, Vidal yasanze impanuka nk'iyi yarabaye muri Tayilande, nubwo uyu mugabo yiteye inshinge mililitiro 2 za dichloromethane ku bushake, ingaruka zabyo zagaragaye mu bitaro bya Bangkok. 2
Ibi bibazo bigaragaza ko dosiye za MSDS zigomba guhinduka kugira ngo zishyiremo amakuru ajyanye n’imibare y’imyanya y’umubiri, nk'uko Vidal yabitangaje. “Ariko ushinzwe umutekano wanjye muri kaminuza yambwiye ko guhindura dosiye za MSDS bizatwara igihe kirekire kandi bigasaba amakuru menshi yo gukusanya.” Ibi birimo inyigo zirambuye ku nyamaswa kugira ngo hakorwe impanuka, isesengura ry’ibyangiritse ku ngingo, n’isuzuma ry’ubuvuzi.
Intoke z'abanyeshuri mu byiciro bitandukanye nyuma yo guterwa methylene chloride nke ku bw'impanuka. Uhereye ibumoso ujya iburyo, iminota 10-15 nyuma yo gukomereka, hanyuma amasaha 2, amasaha 24 (nyuma yo kubagwa), iminsi 2, iminsi 5, n'umwaka 1 (amashusho yombi ari hepfo)
Bitewe n’uko nta makuru ahagije ajyanye n’ishyirwa mu bikorwa rya DCM, Vidal yizeye ko iyi nkuru izakwirakwizwa cyane. Ibitekerezo ni byiza. Yavuze ko iyi nyandiko [yakwirakwijwe cyane]. “Abashinzwe umutekano bo muri za kaminuza zo muri Kanada, muri Amerika no mu Bufaransa bambwiye ko bagiye gushyira iyi nkuru mu masomo yabo. Abantu badushimiye kuba twarasangije iyi nkuru. Benshi ntibashatse kuyivugaho kubera gutinya ko yatangazwa nabi [ku kigo cyabo] Ariko inzego zacu zagiye zishyigikira cyane kuva mu ntangiriro kandi na n’ubu ziragishyigikiye.
Vidal kandi yifuza ko umuryango w’abahanga mu bya siyansi n’abatanga imiti bashyiraho uburyo bwizewe n’ibikoresho bisimbura ibindi bikorwa bisanzwe nko kohereza imiti. Igitekerezo kimwe ni ugukoresha urushinge "rufite icyerekezo gihamye" kugira ngo hirindwe ibikomere. "Ubu ruraboneka, ariko dukoresha inshinge ziteye mu buhanga bw’ibinyabuzima kuko tugomba gushyiramo ibintu bishongesha mu byuma bihagarika imiyoboro kugira ngo turinde imiyoboro yacu y’ingufu kugira ngo tuve mu mwuka/ubushuhe bwo hanze. Inshinge "zifite icyerekezo gihamye" ntizishobora kunyura mu byuma bihagarika imiyoboro. Iki si ikibazo cyoroshye, ariko wenda iki kibazo kizatuzanira ibitekerezo byiza.
Alain Martin, umuyobozi ushinzwe ubuzima n'umutekano mu ishami rya chimie rya Kaminuza ya Strathclyde, yavuze ko atari yarigeze abona impanuka nk'iyo. Yagize ati: “Muri laboratwari, inshinge zifite inshinge zikunze gukoreshwa, ariko niba ari ngombwa gukoresha neza, gukoresha micropipettes bishobora kuba amahitamo meza,” yongeraho, bitewe n'amahugurwa, nko guhitamo amayeri no gukoresha neza pipettes. Yagize ati: “Ese abanyeshuri bacu bari kwigishwa uburyo bwo gufata neza inshinge, uburyo bwo kwinjiza no gukuramo inshinge?”. Yagize ati: “Hari utekereza ko hari ikindi gishobora gukoreshwa? Birashoboka ko atari byo.
2 K. Sanprasert, T. Thangtrongchitr na N. Krairojananan, Aziya. Gupakira. J. Med. Uburozi, 2018, 7, 84 (DOI: 10.22038 / apjmt.2018.11981)
Impano ya miliyoni 210 z'amadolari yatanzwe na rwiyemezamirimo akaba n'umushoramari wa Moderna Tim Springer yo gushyigikira ubushakashatsi buri gukorwa
Uruvange rw'igerageza rya X-ray diffraction hamwe n'isuzuma ryerekana ko urumuri rwinshi rwa laser rushobora guhindura polystyrene.
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