The amount of oil discharged by a fully-loaded 100,000 deadweight ton tanker during a ballast voyage in the open sea amounts to about 0.4 % of the cargo capacity, or about 400 tons!
Ubungakanani be-oyile ekhululiweyo yimoto yayo ibigcwele ngokupheleleyo iba ngamawaka alikhulu ubunzima obufileyo ngexesha bekuhanjiswa izinto ezinzima zokuzinzisa inqanawa kwilwandle elivulekileyo malunga ne 0,4 yeepesenti zobungakanani bomthwalo okanye malunga netoni ezingamakhulu amane