1. Polyethylene Terephthalate (PET kapena PETE)
Ichi ndi chimodzi mwa mapulasitiki omwe amagwiritsidwa ntchito kwambiri.Ndizopepuka, zamphamvu, zowonekera bwino ndipo nthawi zambiri zimagwiritsidwa ntchito popanga zakudya ndi nsalu (polyester).
Zitsanzo: Mabotolo a zakumwa, mabotolo a chakudya/mitsuko (chovala saladi, batala wa mtedza, uchi, ndi zina zotero) ndi zovala za poliyesitala kapena chingwe.
2. High-Density Polyethylene (HDPE)
Pamodzi, Polyethylene ndi mapulasitiki odziwika kwambiri padziko lonse lapansi, koma amagawidwa m'mitundu itatu: Kuchuluka Kwambiri, Kutsika Kwambiri, Kutsika Kwambiri ndi Linear Low Density.High-Density Polyethylene ndi yamphamvu komanso yosagwirizana ndi chinyezi ndi mankhwala, zomwe zimapangitsa kuti zikhale zabwino kwa makatoni, zitsulo, mapaipi ndi zipangizo zina zomangira.
Zitsanzo: Makatoni amkaka, mabotolo otsukira, zomangira phala, zoseweretsa, ndowa, mabenchi a m’paki ndi mapaipi olimba.
3.Polyvinyl Chloride (PVC kapena Vinyl)
Pulasitiki yolimba ndi yolimba iyi imagonjetsedwa ndi mankhwala ndi nyengo, zomwe zimapangitsa kuti zikhale zokhumbitsidwa ndi zomangamanga ndi zomangamanga;pomwe mfundo yakuti siimayendetsa magetsi imapangitsa kuti ikhale yofala pamapulogalamu apamwamba kwambiri, monga mawaya ndi chingwe.Amagwiritsidwanso ntchito kwambiri pazachipatala chifukwa sichingalowe m'majeremusi, amapha tizilombo toyambitsa matenda mosavuta ndipo amapereka ntchito imodzi yokha yomwe imachepetsa matenda pachipatala.Kumbali yakutsogolo, tiyenera kuzindikira kuti PVC ndiye pulasitiki yowopsa kwambiri ku thanzi la munthu, yomwe imadziwika kuti imachotsa poizoni wowopsa m'moyo wake wonse (mwachitsanzo: lead, dioxin, vinyl chloride).
Zitsanzo: Mapaipi amadzimadzi, makhadi a ngongole, zoseweretsa za anthu ndi ziweto, ngalande za mvula, mphete zomangira mano, matumba amadzimadzi a IV ndi machubu azachipatala ndi masks a okosijeni.
4.Low-Density Polyethylene (LDPE)
Mtundu wofewa, womveka, komanso wosinthika wa HDPE.Nthawi zambiri amagwiritsidwa ntchito ngati liner mkati mwa makatoni a zakumwa, komanso m'malo ogwirira ntchito omwe sagwirizana ndi dzimbiri ndi zinthu zina.
Zitsanzo: Zokulunga za pulasitiki/zomatira, masangweji ndi matumba a buledi, zokutira thovu, matumba otaya zinyalala, matumba ogulitsa ndi makapu a zakumwa.
5.Polypropylene (PP)
Ichi ndi chimodzi mwa mitundu yolimba kwambiri ya pulasitiki.Imalimbana ndi kutentha kwambiri kuposa zina, zomwe zimapangitsa kuti ikhale yabwino pazinthu monga kulongedza chakudya ndi kusungirako zakudya zomwe zimapangidwira kuti zisunge zinthu zotentha kapena kuzitenthetsera zokha.Imasinthasintha mokwanira kulola kupindika pang'ono, koma imasunga mawonekedwe ake ndi mphamvu kwa nthawi yayitali.
Zitsanzo: Udzu, zisoti za mabotolo, mabotolo operekedwa ndi mankhwala, zotengera zakudya zotentha, tepi yoyikamo, matewera otayira ndi mabokosi a DVD/CD (kumbukirani izi!).
6.Polystyrene (PS kapena Styrofoam)
Chodziwika bwino ndi dzina loti Styrofoam, pulasitiki yolimba iyi ndi yotsika mtengo ndipo imatsekereza bwino kwambiri, zomwe zapangitsa kuti ikhale yofunika kwambiri m'mafakitale azakudya, zonyamula katundu ndi zomangamanga.Monga PVC, polystyrene imatengedwa kuti ndi pulasitiki yoopsa.Imatha kutulutsa poizoni woyipa ngati styrene ( neurotoxin), yomwe imatha kuyamwa mosavuta ndi chakudya ndikumwedwa ndi anthu.
Zitsanzo: Makapu, zotengera zakudya, zonyamula ndi katundu, makatoni mazira, zoduliramo ndi zotchingira nyumba.
7.Zina
Ah inde, njira yoyipa "ena"!Gululi ndilothandiza pamitundu ina ya pulasitiki yomwe siili m'magulu ena asanu ndi limodzi kapena ophatikiza mitundu ingapo.Timaphatikiza chifukwa nthawi zina mutha kukumana ndi nambala 7 yobwezeretsanso, ndiye ndikofunikira kudziwa tanthauzo lake.Chofunikira kwambiri apa ndikuti mapulasitiki awa nthawi zambiri satha kubwezeretsedwanso.
Zitsanzo: Magalasi a maso, mabotolo a ana ndi masewera, zamagetsi, ma CD/DVD, zoyatsira nyali ndi mapulasitiki omveka bwino.
Nthawi yotumiza: Dec-01-2022