The NSW Environment Protection Authority (EPA) is investigating the leak of the potentially lethal gas, Ethylene Oxide at an industrial site in south eastern Sydney on Sunday.
The leak occurred at the Huntsman Surfactants Plant at Botany Industrial Park.
EPA Chief Environmental Regulator, Mark Gifford, said in a statement that the potential for offsite impacts from the gas was minimal.
“The incident occurred at around 6:00pm on Sunday night when a purpose built alarm alerted workers on site to the potential for a leak,” he said.
“Huntsman staff investigated the leak and correctly initiated the site emergency procedures. Fire and Rescue NSW (FRNSW) attended the site and contacted the EPA.
“The cause of the leak was quickly identified as a seal on one of the pumps at Huntsman’s Ethylene Oxide plant and the pump was switched off and isolated. The incident was resolved by 7:30 pm Sunday evening.
”Based on current information to hand the potential for offsite impacts from the leak are limited but given the nature of the gas we will be undertaking additional investigations as a precautionary measure.”
According to the Huntsman Chemicals website, the Botany plant produces chemicals for the personal care, agriculture, automotive, mining and textiles sectors. The chemicals are used to make detergents, cleaning products, brake fluids and radiator coolants.