Matumba a tiyi opanda pulasitiki? Inde, mwamva zimenezo eti...

Wopanga Tonchant 100% pepala losefera lopanda pulasitiki la matumba a tiyi,PHUNZIRANI ZAMBIRI PANO

Kapu yanu ya tiyi ikhoza kukhala ndi tinthu tating'onoting'ono ta pulasitiki tokwana 11 biliyoni ndipo izi zimachitika chifukwa cha momwe thumba la tiyi limapangidwira.

Malinga ndi kafukufuku waposachedwa wa ku Canada ku McGill University, kuviika thumba la tiyi la pulasitiki pa kutentha kwa 95°C kumatulutsa ma microplastics pafupifupi 11.6 biliyoni - tinthu tating'onoting'ono ta pulasitiki tokhala pakati pa 100 nanometers ndi 5 millimeters - m'chikho chimodzi. Poyerekeza ndi mchere, mwachitsanzo, womwe wapezekanso kuti uli ndi pulasitiki, chikho chilichonse chimakhala ndi pulasitiki yolemera kambirimbiri, pa 16 mikrograms pa chikho chilichonse.

Kuwonjezeka kwa mapulasitiki ang'onoang'ono ndi ang'onoang'ono m'chilengedwe ndi mu unyolo wa chakudya kukukudetsa nkhawa kwambiri. Ngakhale ogula osamala akulimbikitsa kuchepetsa mapulasitiki ogwiritsidwa ntchito kamodzi, opanga ena akupanga ma CD atsopano a pulasitiki kuti alowe m'malo mwa mapepala akale, monga ma pulasitiki. Cholinga cha kafukufukuyu chinali kudziwa ngati ma pulasitiki ang'onoang'ono ndi/kapena ma nanoplastics panthawi yothira. Tikuwonetsa kuti kuthira thumba limodzi la pulasitiki pa kutentha kotentha (95 °C) kumatulutsa pafupifupi ma microplastics 11.6 biliyoni ndi ma nanoplastics 3.1 biliyoni mu kapu imodzi ya chakumwa. Kapangidwe ka tinthu tomwe timatulutsidwa kakugwirizana ndi ma teabags oyambirira (nayiloni ndi polyethylene terephthalate) pogwiritsa ntchito Fourier-transform infrared spectroscopy (FTIR) ndi X-ray photoelectron spectroscopy (XPS). Miyezo ya tinthu ta nylon ndi polyethylene terephthalate tomwe timatulutsidwa kuchokera ku ma CD a ma teabag ndi yayikulu kwambiri kuposa kuchuluka kwa pulasitiki komwe kunanenedwa kale m'zakudya zina. Kuwunika koyamba kwa poizoni wa nyama zopanda msana kukuwonetsa kuti kukhudzana ndi tinthu tomwe timatuluka m'matumba a tiyi kumayambitsa zotsatira za khalidwe ndi chitukuko zomwe zimadalira mlingo.