Ongororo yedata rakawanikwa kubva mumasampu emvura yemugungwa akaunganidzwa kubva munzvimbo dzakasiyana panguva yemakwikwi e60,000km kureba kwepasirese ekufamba nechikepe, iyo Ocean Race 2022-23 yakaratidza ruzivo rutsva mukugovera, kutarisisa uye kunobva marine microplastics.
Microplastics yakatorwa mumasampuli akasiyana muhukuru kubva 0.03 millimeters kusvika 4.6 millimeters. Microplastic particles idiki se 0.03 millimeters inogona kuongororwa neruremekedzo yakanatswa nzira. Nekuda kweizvozvo, yakakwira nhamba ye microplastics: paavhareji, 4,789 pa cubic mita yemvura yakawanikwa.
Nzvimbo yepamusoro-soro (26,334) yakawanikwa padyo neSouth Africa, ichiteverwa nekumucheto kweChirungu Channel padyo neBrest, France (17,184), kozoti imwe nzvimbo iri padyo neSouth Africa (14,976) ichiteverwa neGungwa reBalearic (14,970) uye mu Gungwa reNorth kumhenderekedzo yeDenmark (14,457). Saka, nhatu dzenzvimbo shanu dzepamusoro-soro dzepasirese dzemugungwa microplastic pollution dziri muEurope. Kuita kwevanhu kwakakwira mumatunhu kunokonzeresa kuwanda kwe microplastics mumvura yakatenderedza Europe, Brazil neSouth Africa. Nekudaro, zvikonzero zviri kumashure kwekutarisa kwakakwira muSouthern Ocean hazvizivikanwe. Izvo zvakare hazvina kujeka kana microplastics inofamba ichienda kumaodzanyemba kubva kuSouthern Ocean kuenda kuAntarctica.
Chidzidzo ichi chakateyawo mhando yechigadzirwa chepurasitiki icho microplastics yakabva. Zvakaonekwa kuti, paavhareji, 71% yemicroplastics mumasampuli aive mamicrofibers, kubva kune zvinhu zvakaita sepolyester, izvo zvinoburitswa mumhepo kubva kumichina yekuwachisa (kuburikidza nemvura yetsvina), dryer (mumhepo), kudurura kubva zvipfeko, kushatiswa kwemachira akaraswa munharaunda uye kubva kumidziyo yakaraswa yekuredza.
Ichi chidzidzo chakakosha sezvo chakayera tudiki tudiki tudiki, tudiki se 0.03 millimita, kekutanga. Yakaratidzawo kwakabva kwakabva microplastic particles mugungwa.
Iyo microplastics inoonekwa mune zvakanyanya mumakungwa emhando, kubva plankton kusvika kune whale. Nehurombo, ivo vanowanawo nzira yavo kune vanhu kuburikidza nechikafu cheni.
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References:
- National Oceanography Center (UK). Nhau - 70% yegungwa microplastics ndiyo mhando inowanikwa muzvipfeko, machira & giya rehove - uye Europe inzvimbo hotspot. Yakatumirwa: 4 Zvita 2024. Inowanikwa pa https://noc.ac.uk/news/70-ocean-microplastics-are-type-found-clothes-textiles-fishing-gear-europe-hotspot
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Chinyorwa chinoenderana
- Kusvibiswa kwePlastiki muAtlantic Ocean Kwakanyanya Kupfuura Pane Zvaimbofungwa (25 Nyamavhuvhu 2020)
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