1, Ndi kukula kwa mall, kulemera kopepuka, kosavuta kunyamula ndi kusunga.2, Imagwiritsidwa ntchito mosiyanasiyana pamayendedwe osiyanasiyana malinga ndi kusintha kwa gawo lamkati ndi zinthu zolumikizana.3, Chitetezo chapamwamba.
Amagwiritsidwa ntchito poyamwa komanso kutulutsa ma hydrocarboni otentha kwambiri, parafini, chomera cha petrochemical ndi mafuta kuchokera ku sitima kupita kugombe, tanki yamagalimoto, njanji ndi zina.
Amagwiritsidwa ntchito poyamwa ndi kutulutsa ma hydrocarbon, zosungunulira, parafini kuchokera ku sitima kupita kumtunda, galimoto yama tanki, njanji ndi zina.