Ipulasitiki isala egazini lethu!!!

Ipulasitiki isala egazini lethu!!!
Kubonakala sengathi ayikho indawo emhlabeni engenazo izinsalela zepulasitiki, kodwa ukuqinisekiswa kokuba khona kwayo egazini lethu kuyinto engakholeki, futhi kunalokho kuveza inkinga enkulu neyingozi yendawo ezungezile eyandayo.

Abacwaningi abavela e-Vrije Universiteit Amsterdam kanye ne-University of Amsterdam Medical Center benze amasampula egazi avela kwabanikelayo abanempilo, abangaziwa abangu-22 ukuze bathole iminonjana yamapholima okwenziwa avamile angaphezu kwama-nanometer angu-700 ububanzi.

Ososayensi bathole izinsalela ezincane zepulasitiki egazini labaxhasi, okuye kwaphakamisa ukukhathazeka ngezingozi zayo zezempilo zesikhathi eside, ngokusho kwe-Science Alert.

Izinto ezisetshenziswa ezingxenyeni zezimoto nakokhaphethi

Ngaphezu kwalokho, amasampula ahlanganisa ama-microplastics afana ne-polyethylene terephthalate (PET), evame ukusetshenziswa emabhodleleni ezingubo nezesiphuzo, nama-polymers e-styrene, avame ukusetshenziswa ezingxenyeni zezimoto, okhaphethi nasezitsheni zokudla.

Abacwaningi abakwazanga ukunikeza ukuhlukaniswa okunembile kosayizi wezinhlayiya egazini, nokho, bephawula ukuthi izinhlayiya ezincane ezitholwe ukuhlaziya zisondela kumkhawulo we-nanometer we-700 futhi kungaba lula ngomzimba ukumunca kunezinhlayiya ezinkulu ezidlula ama-micrometer ayi-100.

Bakugcizelele ukuthi kusekuningi abangakakwazi mayelana namakhemikhali kanye nemiphumela engokomzimba yama-microplastic atholakala phakathi kwamangqamuzana omuntu.

Ucwaningo lwezilwane lubonise imiphumela ekhathazayo, kodwa incazelo yalokho abakutholile kumongo wempilo yabantu ayikacaci.

Izingane zisengozini kakhulu

"Siyazi futhi ukuthi ngokuvamile izinsana nezingane ezincane zisengozini enkulu yokuchayeka kumakhemikhali nezinhlayiya," kusho u-Dick Fitak, udokotela ohlola ubuthi bemvelo eNyuvesi yaseVrije, e-Amsterdam.

Naphezu kwenani elincane lamavolontiya, lolu cwaningo lubonisa ukuthi uthuli oluvela emhlabeni wethu wokwenziwa aluhlungiwe ngokuphelele ngamaphaphu ethu namathumbu.

Ucwaningo luqinisekisile ukuthi ucwaningo olwengeziwe luyadingeka emaqenjini amakhulu futhi ahlukahlukene ukuze kumephu ukuthi ama-microplastics asakazeka futhi anqwabelana kanjani kubantu, nokuthi imizimba yethu igcina iwakhiphe kanjani.