Ngenxa yezinsiza zomkhiqizo kanye nezinkinga zamanani, izikhwama ezilukiweyo eziyizigidi eziyizinkulungwane eziyi-6 zisetshenziselwa ukupakisha usimende ezweni lami minyaka yonke,

okungaphezu kwama-85% okupakishwa kukasimende ngobuningi.

Ngokuthuthukiswa kanye nokusetshenziswa kwezikhwama zeziqukathi eziguquguqukayo,

izikhwama zepulasitiki ezilukiweyo zisetshenziswa kakhulu olwandle.

Ezokuthutha, ukupakishwa, imikhiqizo yezimboni nezolimo, kanye nokupakishwa kwemikhiqizo yezolimo,

Izikhwama zepulasitiki ezilukiwe zisetshenziswe kakhulu ekufakweni kwemikhiqizo yasemanzini,

ukupakisha okuphakelayo kwezinkukhu, izinto zokumboza zamapulazi, umthunzi welanga, ukuvikela umoya, amashede angangenwa isichotho nezinye izinto zokutshala izitshalo.

Imikhiqizo ejwayelekile: okuphakelayo izikhwama ezilukiweyo, izikhwama ezilukiwe zamakhemikhali, izikhwama ezilukiwe zeputty, izikhwama ezilukiwe ze-urea, izikhwama ezinezikhala zemifino, njll.