Dangerous GAS
Preliminary investigations indicated that the workers had inhaled gas sulphur – a fuel produced from silt which is a by-product of the ocean treatment method, said PUB next week.
The Singapore Civil Defence Force (SCDF) was alerted to a hazardous material ( HazMat ) incident at 11. 25am at the waterside.
Firefighters and HazMat experts entered the area and identified the oil.
Energy sulphur is a colourless oil with a strong, unpleasant odour related to that of nasty eggs or sewage. It is very dangerous and volatile.
Two liquid jets were used to separate the air, said SCDF. This went on for an afternoon before HazMat experts determined that there was no longer any gas sulphur on the grounds.
PUB expressed its sympathies and said it was in touch with the companies and would provide support to the staff ‘ households.
As a precaution, the regional water company “has called a security delay for similar businesses in confined areas and is reviewing the associated health measures”.
PUB told CNA that the security delay may apply to all its services and will be lifted when it is satisfied that the needed safety measures are in place.
The Manpower Ministry ( MOM) said it is investigating the incident and has instructed PUB to stop all tank cleaning works.
The government added:” As a public health measure, proper ventilation must be provided to prevent concentration of toxic fumes.
” Employees must also be protected from increased exposure to toxic fumes by equipping them with fuel tracking products, and the appropriate personal protective equipment such as mask face and breathing apparatus. “