Shenhai Explosion-Ubungqina
Umgubo we-asphalt unokugqabhuka xa ulunge kakhulu.
Njengezona zinto ziphambili ze-asphalt, iihydrocarbons ezinevumba elimnandi, xa ucolwe ngokwaneleyo, batyekele ekwenzeni uthuli. Ngenxa yendawo ebanzi yomgangatho we-asphalt, isebenzisana ngokulula nomoya, ukwandisa kakhulu umngcipheko wokudubula kothuli.