I-AvobenzoneCAS70356-09-1 – Isithako esibalulekileyo kwiCandelo loKhuseleko lweLanga kunye neendlela zalo zeMarike

Kwiminyaka yakutshanje, ngenxa yokwanda okuqhubekayo kolwazi lwabantu malunga nokukhuselwa kwelanga, imakethi yeemveliso zokukhuselwa kwelanga ibonakalise umkhwa wophuhliso okhulayo. Phakathi kwezithako ezininzi zokukhuselwa kwelanga, i-avobenzone, njenge-arhente ebalulekileyo ye-sunscreen, ifumene ingqalelo enkulu.

I-Avobenzone sisithako esinyibilikayo ngamafutha, kwaye amagama ayo orhwebo aquka iParsol 1789, i-Eusolex 9020, i-Escalol 517, njl. Njengemvelaphi ye-dibenzoylmethane, inokufunxa i-UVA kuzo zonke ii-wavelengths, ingakumbi inezinga eliphezulu lokufunxa i-UVA enobude obuzii-nanometers ezingama-357. Ke ngoko, isetyenziswa kakhulu kwiimveliso ezininzi ezifuna ukukhuselwa kwilanga elibanzi, elinokuthintela ngempumelelo ukutsha kwelanga kunye nokunciphisa umngcipheko womhlaza wolusu.

Nangona kunjalo, i-avobenzone ayisiyongxaki. Uphononongo olwenziwe yi-US Food and Drug Administration (FDA) lukhe lwabonisa ukuba izithako zeekhemikhali ze-sunscreen ezifana ne-avobenzone zinokungena egazini, kwaye uxinaniso lwamayeza egazini ludlula kakhulu umda wokhuseleko ochazwe yi-FDA, nto leyo ebangela inkxalabo yoluntu malunga nokhuseleko lweemveliso zokukhusela ilanga. Okwangoku, i-FDA ikwagxininise ukuba xa ucinga ukuba izithambisi ze-sunscreen ziye zabonakaliswa zidlala indima ebalulekileyo ekuthinteleni umhlaza wolusu kunye nezinye iziphumo eziyingozi zemitha ye-ultraviolet, abathengi akufuneki bayeke ukusebenzisa izithambisi ze-sunscreen ngenxa yoku, kodwa banokukhetha iimveliso ezikhuselekileyo, ezifana nezo ziqulethe izinto ze-sunscreen ezifana ne-zinc oxide kunye ne-titanium dioxide.

Ukongeza, ngexesha lokusetyenziswa kwe-avobenzone, kufuneka kuqwalaselwe ukuzinza kwayo. Kufuneka kuthintelwe ukuba ingadibani nee-ion zesinyithi ukuthintela ukujika kombala, kwaye kufuneka isetyenziswe ngokwemilinganiselo ecetyiswayo ukuqinisekisa ukhuseleko nokusebenza kakuhle kweemveliso. Kubathengi, xa bekhetha iimveliso zokukhusela ilanga ezine-avobenzone, kucetyiswa ukuba benze uvavanyo lwendawo encinci eluswini kuqala ukuze babone ukuba kukho na ukusabela kwe-allergy.

Lilonke, indawo ebalulekileyo ye-avobenzone kwicandelo lokukhusela ilanga ayinakutyeshelwa, kodwa uphando olufanelekileyo lokhuseleko kunye nolawulo kufuneka luqiniswe rhoqo ukuqinisekisa ukuba abathengi banokusebenzisa iimveliso zokukhusela ilanga ngokukhuselekileyo nangokufanelekileyo ukumelana nomonakalo wemitha ye-ultraviolet eluswini. Ngexesha lenkqubo yemveliso, amashishini kufuneka alawule ngokungqongqo umgangatho, alandele imigangatho kunye neenkcukacha ezifanelekileyo, kwaye akhuthaze uphuhliso olusempilweni lwe-avobenzone kwimarike yokukhusela ilanga.