Parkland Corp. has released a review into an unplanned shutdown of its Burnaby, B.C., refinery in January that blanketed parts of Metro Vancouver with a foul stench.

The review released last week says unusually cold weather triggered a series of events leading to the release of a noxious odour that generated more than 100 complaints from residents.

It says the cold weather resulted in a shutdown on Jan. 12, but as crews spent days trying to get the facility back online, they detected a 91裸聊视频渟trong odour91裸聊视频� on the morning of Jan. 21, followed by a 91裸聊视频渓oud pop91裸聊视频� and a 91裸聊视频済reen-black91裸聊视频� plume being emitted from the refinery91裸聊视频檚 stacks.

It says the problems 91裸聊视频渕ay have been caused by improper closing, valve leakage, or foulant in the system.91裸聊视频�

The site was evacuated of non-essential personnel, emergency responders were notified and public advisories were issued soon after, the report says, but 91裸聊视频渂roader stakeholder consideration would have improved communications.91裸聊视频�

In a written statement, the City of Burnaby says it it91裸聊视频檚 pleased to see Parkland taking steps to address the release of emissions, and to improve communications with the public and other stakeholders.

91裸聊视频淲e look forward to seeing these recommendations put into action,91裸聊视频� the statement said.

Parkland91裸聊视频檚 report says it wasn91裸聊视频檛 until March 29 that normal operations at the refinery resumed.

The report also says the length of the January cold snap caused problems with instruments at the refinery, hampering sensors that 91裸聊视频渄id not have a history of being susceptible to freezing.91裸聊视频�

As the odour blanketed parts of Metro Vancouver, the regional federation of municipalities said the air contained elevated contaminant levels but didn91裸聊视频檛 breach pollution standards.