Technical Safety BC conducted an ammonia release fault tree workshop to identify potential causes of ammonia releases from industrial refrigeration systems used in arenas and food storage facilities. The workshop is part of a Technical Safety BC project meant to detect and mitigate emerging and known technical safety risks in the province.
The project used the fault tree method which starts with choosing a final event such as an ammonia leak and working backward to identify all the causes that could have led to the event. Workshop participants identified two causal factors for ammonia releases: