ABC Online | Nitrous acid leak in Melbourne's north produces orange cloud, four evacuated ABC Online Emergency crews have safely evacuated four people after a nitrous acid leak in an industrial area Melbourne's north. The leak of about 200 litres came from a nitrous acid container at a metal mould manufacturer on Holt Parade at Thomastown. It sent a ... Staff rescued from Thomastown nitrous acid leak Workers evacuated after nitrous acid spill Four workers have been trapped in a factory after a gas leak. |