EDMONTON -- A power failure at an east Edmonton waste management facility was responsible for clouds of coloured smoke emanating from the building on Friday afternoon, according to operator Enerkem.
"There was a release of a substance which resulted in a large purple cloud," reads a statement from the company.
"City of Edmonton Emergency Response Teams intervened quickly and deemed the area safe after conducting a prompt investigation."
The statement goes on to say the amount of smoke released was "below occupational exposure limits" and wasn't a concern for the people and environment.
The facility has since resumed regular operations.
Edmonton Fire Rescue Services spokesperson said crews responded at 11:38 a.m. and had the smoke under control within a few minutes.