Bishii Oktoobar 2022, Ururka Caafimaadka Adduunka (WHO) wuxuu isugu yeedhay guddi khubaro ah Lisbon, Portugal kaas oo 2005tii WHO TEFs ee xeryahooda dioxin-la midka ah dib loo qiimeeyay.
Asalkii hore
Tan iyo sanadkii 1990-meeyadii, WHO waxa ay sameeysay la-talin khubaro ah oo muhiimadoodu tahay in la iswaafajiyo TEFs ee dioxins iyo xeryahooda dioxin-la mid ah ee heer caalami, iyada oo ay siinayaan talooyin hay'adaha sharci-dejinta qaranka. TEF waxay muujisaa sunta dioxins, dibenzofurans iyo dioxin-like PCBs marka loo fiiriyo qaabka ugu badan ee dioxin, 2,3,7,8-TCDD. TEF-yadii ugu dambeeyay ee WHO ee dioxin iyo dioxin-u eg waxaa aasaasay WHO iyada oo loo marayo la-talin khabiir oo la mid ah 2005.
Ilaa la tashigii hore ee 2005, xog badan oo gaar ah ayaa la daabacay oo ku saabsan qiyaasaha awoodda (REPs) iyo xulashada TEF ee suurtogalka ah. Xogtan xoogga leh ee laga helay daraasado gaar ah ayaa lagu daray xogta REP ee la casriyeyay, xogtan waxaa loo adeegsaday habka dib-u-celinta ee Bayesian si loo go'aamiyo in isbeddellada TEFs la kafaala qaadi doono iyo in kale. Hababka lagu dabaqay dib-u-qiimayntan TEF waxay si toos ah u raacaan talooyinka ay bixiyeen la-talinta khabiirada WHO 2005.
Xulashada khubarada la talinta khabiirada.
Bishii Maajo 2022 WHO waxay bilawday baaq furan oo khubarada ah si ay ugu adeegaan sidii xubno ka mid ah ad-hoc Oktoobar 2022 la talinta khabiirada.
Shuruudaha doorashada khabiiradu waxay ku dhisan yihiin shahaadooyin aasaasiga ah iyo kuwa lama huraanka ah oo ay udheertahay karti iyo khibrad la xaqiijiyay oo laga helay meelo kala duwan sida toxicology, farmashiyaha, biochemistry, pathology, epidemiology, bayoloji molecular ama statistics iyadoo muhiimada la saarayo khibrada berrinka dioxin- sida xeryahooda. In ka badan 30 khubaro ah oo ka kala yimid gobollo kala duwan ayaa sheegeen in ay doonayaan in ay ka qeyb qaataan wadatashiga khubarada, waxaana kulanka lagu casuumay 20 khubaro ah oo ka kala yimid gobollo kala duwan.
Natiijada kulanka
Waxaa la isku raacay dhammaan khubaradii lagu casuumay in xogta REP ee la cusboonaysiiyay ay muujisay baahida loo qabo in dib loo qiimeeyo 2005tii WHO qiimaha TEF ee dioxins, furans iyo dioxin-sida PCBs. Waxaa sidoo kale la go'aamiyay in habka Bayesian-ka lagu dabaqo si loo xaqiijiyo xogta REP taasoo keentay kalsooni sare iyo hubaal natiijada tashiga khabiirada 2022.
Si ka duwan la-tashiyadii hore ee khubarada ee lagu shaqaaleeyay xukunka khabiirka iyo meelaynta is-afgaradka ku salaysan ee qiyamka TEF , dadaalka hadda jira wuxuu adeegsaday cusboonaysiinta xogta REP, nidaam qiyaas la isku raacsan yahay, qaabaynta jawaabta qiyaasta Bayesian iyo falanqaynta meta si loo soo saaro -Qiyaas" TEFs. Xogta la hormariyay waxa ay ka kooban tahay ku dhawaad labanlaab tirada xogta ee midii hore oo ay ku jirto xog badan oo wargelinaysa nidaamka miisaanka. Falanqaynta Bayesian- ka ee xog-ururintan waxay natiijadeedu tahay qiimaynta tiro aan eex lahayn ee awoodaha gaarka ah ee isku-dhafan oo leh qiyaaso aan la hubin. "Qiyaasta ugu Fiican" TEF ee laga soo qaatay moodeelka ayaa loo adeegsaday in lagu meeleeyo 2022 TEFs WHO ku dhawaad dhammaan isku-xidhayaasha qiyamyadan laguma soo koobin qayb sidii hore loo samayn jiray. Waxa ka reeban PCB-yada mono-ortho, kuwaas oo guddigu ku heshiiyeen in ay sii hayaan 2005 WHO-TEFs sababtoo ah xogta xaddidan iyo kala duwanaanta ah ee loo heli karo xeryahooda. Dalbashada TEF-yada cusub ee kooban ee isku-ururinta kiimikada dioxin u eg ee lagu cabbiray caanaha dadka iyo cuntada badda waxay muujineysaa in wadarta guud ee u dhiganta sunta ay u muuqan doonto inay ka hooseyso marka la isticmaalayo 2005 TEFs. Waxaa loo dajiyay dhowr badeecooyin cunto oo baniaadmi ah oo khuseeya in wadarta TEQ-yada ay ku yaraan doonaan qiyaastii 2 (ca. 50%) iyadoo la adeegsanayo TEF-yada cusub ee WHO 2022 marka la barbar dhigo kuwii la aasaasay 2005.
Natiijada iyo faahfaahinta la talintan khabiirka ah ayaa lagu daabacay Xeerbeegtida Sunta iyo Farmashiga ee la daabacay 2024.
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