False alarm at Ontario nuclear plant triggers thousands of orders of iodide pills

Pills help protect thyroid gland and reduce cancer risk if radioactive iodine is released into air

Ontarians placed more than 32,000 orders for iodide pills in the two days following a false alarm about an incident at Pickering Nuclear Generating Station.

There are normally between 100 and 200 orders per month, according to Ontario Power Generation.

But after an alert warning of an unspecified problem at the nuclear facility was sent in error Sunday morning, there were 32,388 orders placed over that day and Monday.

In Ontario, potassium iodide (KI) pills are distributed to residents within 10 kilometres of a nuclear facility; others living within a 50-kilometre radius of one can order them through a website called preparetobesafe.ca. In New Brunswick — the only other province with an operating nuclear power plant — the distribution radius is 20 kilometres.

The pills help protect the thyroid gland and reduce the risk of cancer if radioactive iodine is released into the air in the unlikely event of a nuclear emergency, according to the Canadian Nuclear Safety Commission. They saturate the thyroid gland with non-radioactive iodine and prevent radioactive iodine from being absorbed.

“The thyroid gland will absorb iodine that is in a person’s bloodstream; it cannot tell the difference between radioactive iodine and non-radioactive (stable) iodine,” the CNSC says.

“The absorption of radioactive iodine can be prevented by taking KI before or soon after its release into the air…. Over time, the radioactive iodine will undergo radioactive decay and be harmlessly excreted in urine.”

The risk of side effects is “extremely low,” according to the preparetobesafe website, which is operated by Durham Region, the City of Toronto and OPG. Rare and mild side effects include gastrointestinal issues or hypersensitivity reactions, and people with thyroid disorders are at a greater risk of side effects.

People should only take the pills if directed to do so by public health officials, CNSC says. They are considered to last for up to 12 years as long as they are stored in a dry location that is kept between 15 and 30 degrees Celsius.

The Pickering nuclear plant has been operating since 1971. It had been scheduled to be decommissioned this year, but the former Liberal government — and the current Progressive Conservative government — committed to keeping it open until 2024.

The province has launched an investigation into the false alarm.

READ MORE: Months after false Hawaii missile alert, Canada ‘finalizing’ warning protocol (Dec. 2018)

Initial observations suggest human error was responsible for the message that was sent out during routine tests of the emergency alert system, Jones said.

A follow-up alert with an all-clear was sent to cellphones nearly two hours after the original notification.

Allison Jones, The Canadian Press

Like us on Facebook and follow us on Twitter

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Comments are closed

Just Posted

It’s showtime: Victoria theatre reopens with new COVID-19 protocols

Capitol 6 theatre and SilverCity Victoria have reopened with limited seating

Victoria Police searching for missing teen

Arianna Mckenzie, 17, last seen July 2

Rapid bus system could increase frequency, reliability in Greater Victoria

BC Transit studies methods for improving major routes in Capital Region

Victoria man collects 28 bags of trash along two-kilometre stretch of highway

20-year-old spent 12 hours collecting garbage near Thetis Lake

13 new B.C. COVID-19 cases, Langley Lodge outbreak ends

Health care outbreaks down to four, 162 cases active

Two injured hikers airlifted from North Vancouver Island Park

Campbell River and Comox Search and Rescue hoist team rescued the injured from Cape Scott Provincial Park

Alberta health minister orders review into response after noose found in hospital in 2016

A piece of rope tied into a noose was found taped to the door of an operating room at the Grande Prairie Hospital in 2016

B.C.’s major rivers surge, sparking flood warnings

A persistent low pressure system over Alberta has led to several days of heavy rain

B.C.’s Indigenous rights law faces 2020 implementation deadline

Pipeline projects carry on as B.C. works on UN goals

‘Mind boggling’: B.C. man $1 million richer after winning Lotto 6/49 a second time

David O’Brien hopes to use his winnings to travel and of course keep playing the lottery

B.C. teacher loses licence after sexual relationships with two recently-graduated students

The teacher won’t be allowed to apply for a teaching certificate until 2035

Lower Mainland teacher facing child pornography charges

Elazar Reshef, 52, has worked in the Delta School District

Most Read