izindaba

Ngokocwaningo lwaseDanish olubuyekezwe ngontanga, amazinga aphakeme ezinhlanganisela ze-PFAS ahlotshaniswa nohlobo olubi kakhulu lwe-Covid-19.Lolu cwaningo lubandakanya iziguli ezingama-323 ezingenwe yi-coronavirus futhi lwathola ukuthi lezo ezinamazinga aphakeme ekhemikhali ebizwa ngokuthi i-PFBA zinamathuba aphindwe kabili okuba nesifo esibi.
I-PFBA ingesinye sezigaba zezimboni, ezivame ukubizwa ngokuthi “amakhemikhali angunaphakade”, angcolise umhlabathi, amanzi nokudla emhlabeni wonke.Ibhekwa njengephephile uma kuqhathaniswa ngoba inesikhathi esifushane kakhulu sokuhlala egazini lomuntu kunezinye izinhlanganisela kulesi sigaba futhi iyi-molecule emfushane.Lezi zici ezimbili zibhekwa njengezimpawu zokungabi nangozi.I-PFBA eyakhiwe yi-3M isuselwe ochungechungeni lwekhabhoni emine futhi yanyamalala egazini lomuntu ezinsukwini ezimbalwa nje.Ibisetshenziswa, futhi i-PFOA esekelwe kumakhabhoni ayisishiyagalombili igcinwe egazini lomuntu iminyaka eminingi futhi yaqedwa kusukela ngo-2015.
Nakuba i-PFBA idonsa igazi ngokushesha, inqwabelana emaphashini, okungenzeka ukuthi ichaza imiphumela yocwaningo lwaseDenmark.Umbhali oholayo walolu cwaningo, uPhilippe Grandjean, uthe: "Mhlawumbe into ebaluleke kakhulu isifo samaphaphu, ngoba lokho kungumthombo wempi yeCovid-19."Ucwaningo lukaGrandjean lubandakanya iziguli ezingama-323 ze-Covid-19, ezingama-215 kuzo zilaliswe esibhedlela.Abacwaningi bahlaziye ukuba khona kwamakhompiyutha amahlanu e-PFAS egazini lalezi ziguli futhi bathola ukuthi i-perfluorobutyric acid noma i-PFBA kuphela ehlobene nobunzima besifo.Bangaphezu kwengxenye yabantu abane-Covid-19 enzima bakhuphule amazinga e-plasma PFBA, kanti abantu abangaphansi kwama-20% abanezifo ezithambile baye bakhuphula amazinga e-plasma PFBA.
I-Centers for Disease Control and Prevention ayifaki i-PFBA lapho iqapha amazinga egazi wezinto ezihlukahlukene ze-PFAS.Kodwa kusobala ukuthi le nto yamakhemikhali ayisakazeki nje kuphela kwezinye izindawo, kodwa futhi iphakeme kakhulu.Ucwaningo olwenziwa ngabakwa-3M ngo-2005 lwabonisa ukuthi amasampula egazi angama-20 kwangu-36 ahlanganiswe emphakathini aqukethe i-PFBA.Ucwaningo lwakamuva olwenziwa uMnyango Wezempilo waseMinnesota lubonisa ukuthi izinga lekhompiyutha lenyukile endaweni yedolobha elisempumalanga eduze nefektri ye-3M ezindaweni ezingaphansi kweMinneapolis-St.UMartin.UPaul uphinde wathola lekhemikhali kwezinye izingxenye zomhlaba, kuhlanganise neVietnam, iJordani, iThailand neJapane.I-PFBA iphinde yatholwa eduze kwemboni engu-3M e-Decatur, e-Alabama, eduze nomfula i-Tennessee, kanye nefekthri engu-3M e-Cordoba, e-Illinois.Itholakale ekudleni okuhlanganisa amathenisi, uphizi, utamatisi kanye nolethisi.
I-PFBA isetshenziswa emikhiqizweni kagesi;izingubo zokugqoka, kuhlanganise namabhantshi angangeni manzi;izinto zokuzivikela zabasebenzi bezokwelapha nabacimi bomlilo, njengezingubo zokuhlinza;igwebu lokucisha umlilo;imishini yelabhorethri yokupholisha phansi ukhaphethi;ukucutshungulwa kwesikhumba;ukupakisha ukudla;izimonyo, okuhlanganisa izinto zokuthambisa umzimba kanye nesisekelo , Concealer, eye shadow, powder;ngokwephepha elisanda kunyatheliswa mayelana nokusetshenziswa kwekhemikhali okwakungaziwa ngaphambili, umkhiqizo uhlanganisa nokomisa ibhayisikili.
Ngokwemithethonqubo yoMnyango Wezempilo waseMinnesota, ikhemikhali ibeke imikhawulo yokuphepha.Ekuhlolweni kwezilwane, i-PFBA ingabangela izinguquko zesibindi kanye ne-thyroid, kanye nokunciphisa amangqamuzana egazi abomvu, ukunciphisa i-cholesterol kanye nokuvulwa kwamehlo ukubambezeleka.Umnyango we-Environmental Protection Agency, obizwa nge-Integrated Risk Information System, noma i-IRIS, uhlola izingozi ze-PFBA futhi uhlela ukukhipha umbiko wawo ngekota yokuqala yonyaka ozayo.Lapho becela ukuphawula, abakwa-3M bakhulume ngokuthi "Intercept" esitatimendeni esikuwebhusayithi yabo, esithe "ubufakazi besayensi obukhona abusekeli ubudlelwano obuphakathi kokuchayeka kwePFAS kanye nemiphumela yezempilo ye-COVID-19."
Ucwaningo lwangaphambili olwenziwa nguGrandjean lukhombisile ukuthi amazinga aphezulu e-PFAS ezinganeni ahlobene nezimpendulo ezibuthakathaka emithini yokugoma ehlukahlukene-futhi ukhathazekile ukuthi kuyafana nangomgomo we-Covid-19.
"Ngicabanga ukuthi esikubone phambilini kungenzeka kuphinde kwenzeke," esho ngomuthi wokugomela okwamanje owenzelwe i-Covid-19.Uthe imiphakathi enamazinga anyukile okungcoliswa kwezimboni kufanele icabangele ngokukhethekile lapho isabalalisa imigomo."Bangase badinge ngaphezu kwesithombe esisodwa noma ezimbili ezinconyelwe wonke umuntu ngoba ukukhiqizwa kwamasosha omzimba kungase kuvinjelwe."
Ngonyaka wokugcina wesigwebo sakhe esinzima, imizamo yomhlengi we-NSA yokulwela ukuzwelana yasekelwa abalandeli.
Izinkantolo ezisanda kugcinwa kwemithetho zachitha amashumi eminyaka omthetho owawuhlola izigwebo zentambo ezingqubuzana nomthethosisekelo.
Kulesi siqephu semiklomelo, u-Lee uxoxa ngencwadi yakhe yakamuva ethi "Isitha Sendawo Yonke: Inselelo YeJihad, Umbuso Nobumbano."


Isikhathi sokuthumela: Jan-31-2021