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I-Organotin: Iimpembelelo kwiMpilo kunye nesishwankathelo soMngcipheko weNdalo
I-Organotin yenye yeekhemikhali ezikhethekileyo zeekhemikhali, apho ukwakheka kwenzeka kwi-tin kunye ne-athomu ye-carbon. Kangangeminyaka, ezi mpawu zikhethekileyo - Kubandakanywa amandla non-fouling, izinto ezigobekayo kunye namatye uzinzo ngonaphakade isetyenziswe kunye namashishini ezahlukeneyo ezifana kwimveliso yemihla ngemihla. Nangona kunjalo, uphando olutsha luye lwabonisa ukuba Monobutyl series imele ingozi enkulu kwimpilo yabantu kunye nokusingqongileyo.
Ukutshatyalaliswa kwezilwanyana zasendle, i-organotins inetyhefu nakwimigangatho ephantsi kwaye inokubangela umonakalo kwinqanaba le-larval yobomi. U-Lingshi uqikelela ukuba namayeza okubulala izinambuzane anokwenza i-62% yomxube, kwaye ngokukodwa kwipeyinti echasayo esetyenziswa kwiinqanawa ukunqanda izinto eziphilayo ukuba zibambelele kwi-hulls. Kanye ezi Dibutyl series iipeyinti ziqala ukuqhekeka, zikhuphela ii-organotins emanzini apho zifunxwa yiphytoplankton, izilwanyana ezingenamqolo kunye neentlanzi ezikhokelela kwiziphumo ezikhulayo kwizinga eliphezulu lezinto eziphilayo ezifana neentaka. Ngenxa yoko, umonakalo omkhulu we-ikhosistim kunye nokufa okunokubakho kwezi zinto ziphilayo kudala isiphumo se-cascade kwiwebhu yokutya.
Ii-Organotins zibonakaliswe ukuba zibangela iingxaki ezinkulu kubomi baselwandle, kwaye iimpembelelo ezifanayo ziyabonwa ebantwini kunye nezilwanyana ezingajoliswanga. Iziphumo ezinjalo zinokubandakanya ukuphazamiseka kwe-endocrine, ukuphazamiseka kophuhliso kunye nokuzala kunye nomonakalo kumajoni omzimba. Ezi khompawundi zinokubulala kumanqanaba aphezulu etyhefu ukuba ziphela ngaphakathi emzimbeni ngokuphefumla, ukungeniswa okanye ukudibana kwesikhumba.
Uninzi lwee-oganotins zinepropathi efanayo yokuba yi-bio accumulative - Iikhompawundi zakheka kwizinto eziphilayo ngokuhamba kwexesha. Ke, izilwanyana ezikumanqanaba aphezulu etrophic njengeentlanzi ezizingelayo kunye neentaka ziya kuziqokelela kuzo ezi zinto. Izilwanyana ezincancisayo zaselwandle, njengamahlengesi kunye neminenga etya iintlanzi ezine-organotins zinokugcina amanqanaba anokuba yingozi ezi khompawundi emizimbeni yazo ngaloo ndlela zandisa kakhulu imingcipheko kwimpilo yazo.
Organotins ngokunjalo Tributyl series ngokukodwa kubangela iingxaki zokusingqongileyo kwimiba yasemanzini. Okwenyani Amanqanaba e-Organotin ekusetyenzisweni kwepeyinti echasayo kwiinqanawa ngawona maqela abona mthombo. Ekususweni okanye ekukhutshelweni kwiinkqubo zasemanzini, ezi peyinti zinamandla okwenza ityhefu ngokulandelelana kwemveliso ye-metallothionein kunye noxinzelelo lwamajoni omzimba kwizinto ezithwalwa ngamanzi.
Isilumkiso esiyingozi: I-Organotins ayisiyonto yokusetyenziswa komntu. Babeka amanqanaba aphezulu etyhefu enokubona umonakalo omkhulu kunye nexesha elide kwimpilo yabantu. Organotins iimveliso inokungena emzimbeni ngeendlela ezahlukeneyo, ifunxwe kukuphefumla kunye nokungeniswa okanye ngokunxibelelana kwesikhumba. Abasetyhini abakhulelweyo kunye nabantwana abancinci banokuba sengozini kuba i-organotins ibonakaliswe ukuphazamisa iinkqubo ezibalulekileyo zophuhliso. Yiyo loo nto ukuthintela ukuvezwa kunye nokuthatha amanyathelo okhuseleko ayimfuneko kubaluleke kakhulu kulawulo lwe-organotin.
