Add Yahoo as a preferred source to see more of our stories on Google. Operators say there has been an increase in large nitrous oxide cylinders arriving at plants in recent years, despite “laughing ...

A surge in discarded laughing gas canisters at waste sites has seen a rise in explosions endangering workers’ lives, authorities warn. Operators say there has been an increase in large nitrous oxide ...

Add Yahoo as a preferred source to see more of our stories on Google. File photo of empty nitrous oxide canisters collected after a festival in England. Metro Vancouver says they are being sold at ...

The items, such as laughing gas or whippets, are ending up in the garbage and officials say they are exploding, posing ...

The aftermath of a truck carrying gas cylinders that exploded on Magoebaskloof. Photo: Supplied POLOKWANE – The R71 between Polokwane and Tzaneen has officially reopened to motorists following a gas ...