VANCOUVER — Canisters of nitrous oxide, also known as laughing gas, sold under the guise of whip cream chargers are increasingly showing up at Metro Vancouver waste facilities, and they're causing ...

Nitrous oxide canisters that have shown up at Metro Vancouver waste facilities and are suspected to have caused explosions are shown in this undated handout photo. THE CANADIAN PRESS/Handout - Metro ...

VANCOUVER - Canisters of nitrous oxide, also known as laughing gas, sold under the guise of whip cream chargers are increasingly showing up at Metro Vancouver waste facilities, and they're causing ...

VANCOUVER - Canisters of nitrous oxide, also known as laughing gas, sold under the guise of whip cream chargers are increasingly showing up at Metro Vancouver waste facilities, and they're causing ...

VANCOUVER - Canisters of nitrous oxide, also known as laughing gas, sold under the guise of whip cream chargers are increasingly showing up at Metro Vancouver waste facilities, and they’re causing ...

A stretch of the A3 in Surrey was closed due to exploding gas canisters, which belonged to the police. Officers removed four canisters from the carriageway, near American Golf in Guildford, at 17:40 ...

Dramatic footage shows the moment a gas canister exploded at a recycling centre in Cornwall. CCTV from inside the centre captures the dramatic moment as a fire breaks out inside the centre in Bodmin.