Uphononongo lweentlobo ezintlanu ezahlukeneyo zokutya kwaselwandle kwafumanisa ukuba isampulu nganye yovavanyo inezinto ezilandelwayo zeplastiki.
Abaphandi bathenga iimbatyisi, i-shrimp, iskwidi, oononkala kunye nesardadi kwintengiso yase-Australia kwaye bazihlalutya besebenzisa indlela esandula ukwenziwa enokuthi ngaxeshanye ichonge kwaye ilinganise iintlobo ezintlanu zeplastiki.
Uphononongo olwenziwe yiDyunivesithi yase-Exeter kunye neDyunivesithi yaseQueensland yafumanisa ukuba iskwidi, igrama shrimp, istrimp, oysters, shrimp, kunye ne sardine zazi 0.04 mg, 0.07 mg, oyster 0.1 mg, crab 0.3 mg and 2.9 mg, ngokulandelanayo.
UFrancesca Ribeiro, umbhali ophambili weQueX Institute, uthe: “Xa kuthathelwa ingqalelo umyinge wokusetyenziswa, abathengi bezilwanyana zaselwandle banokutya malunga ne-0.7 mg yeplastiki xa besitya iimbatyisi okanye iskwidi, ngelixa ukutya iisardadi kunokutya ngaphezulu. Ukuya kuthi ga kwi-30mg yeplastiki. "Umfundi we-PhD.
"Ukuthelekisa, umndilili wobunzima bengqolowa nganye yerayisi ngama-30 mg.
"Iziphumo zethu zibonisa ukuba ubungakanani beplastiki obukhoyo phakathi kweentlobo ezahlukeneyo bohluka kakhulu, kwaye kukho iyantlukwano phakathi kwabantu bohlobo olunye.
"Ukusuka kwiindidi zokutya kwaselwandle ezivavanyiweyo, iisardadi zinomxholo ophezulu weplastiki, nesiphumo esimangalisayo."
UNjingalwazi Tamara Galloway, umbhali-mbumba we-Exeter Institute for Global Systems, uthe: "Asiziqondi ngokupheleleyo iingozi zokufaka iiplastikhi kwimpilo yabantu, kodwa le ndlela intsha iza kwenza kube lula kuthi ukuyifumana."
Abaphandi bathenga ukutya kwaselwandle okuluhlaza-oononkala abahlanu basendle, iimbatyisi ezilishumi, i-tiger prawns ezilishumi, i-squid zasendle ezilishumi kunye ne-sardine ezilishumi.
Emva koko, bahlalutya iiplastikhi ezintlanu ezinokuthi zichongwe ngale ndlela intsha.
Zonke ezi plastikhi zihlala zisetyenziswa ekupakisheni iiplastiki nakwilaphu elenziweyo, kwaye zihlala zifumaneka kubutyobo baselwandle: i-polystyrene, i-polyethylene, i-polyvinyl chloride, i-polypropylene kunye ne-polymethylmethacrylate.
Ngendlela entsha, izicubu zokutya ziphathwa ngamachiza okunyibilikisa ubukho beplastiki kwisampulu. Isisombululo esiphumela sihlalutywa kusetyenziswa ubuchule obunobuthathaka obubizwa ngokuba yi-pyrolysis gas chromatography-mass spectrometry, enokuthi ngaxeshanye ichonge iintlobo ezahlukeneyo zeeplastiki kwisampulu.
I-Polyvinyl chloride ifunyenwe kuzo zonke iisampulu, kwaye iplastiki eneyona nto iphakamileyo yayiyi-polyethylene.
IiMicroplastics zincinci kakhulu ziziqwenga zeplastiki eziza kungcolisa uninzi lweendawo zomhlaba, kubandakanya nolwandle. Zonke iintlobo zobomi baselwandle ziyazitya, ukusuka kwizibungu ezincinci kunye neplankton ukuya kwizilwanyana ezanyisayo ezinkulu.
Uphando ukuza kuthi ga ngoku lubonakalisile ukuba ii-microplastics azingenisi kuphela ukutya kwethu okuvela kwiintlanzi zaselwandle, kodwa zingena emzimbeni womntu zisuka emanzini asebhotileni, ityuwa yolwandle, ibhiya kunye nobusi, nothuli lokutya.
Indlela entsha yovavanyo linyathelo eliya ekuchazeni ukuba yeyiphi imilinganiselo yeplastikhi ethathwa njengeyingozi kunye nokuvavanya umngcipheko onokubakho wokungenisa izixa ezilinganiselweyo zeplastikhi ekutyeni.
