Statistics Canada sifting through sewage to gauge pot consumption

Agency says sales data tracks legal marijuana but this will track illicit sales too

The federal government is taking a somewhat noxious approach to studying just how much pot Canadians are consuming: researching our sewage.

Statistics Canada will spend up to $600,000 a year for a contractor to regularly test waste water from 15 to 20 municipalities across the country for traces of THC, the active ingredient in marijuana, and other drugs.

The survey could be the best way to collect precise data on the amount of pot Canadians consume, according to Anthony Peluso, an assistant director at Statistics Canada.

“We want to have a good indication of actual consumption numbers,” said Peluso. “Sometimes we do get quantities, but we’re not sure.”

READ: B.C. government marijuana stores will compete with private sellers

Peluso said that by using the same methodology from sewage analysis surveys in Europe that have proven accurate in the past, Statistics Canada believes it will be able to fill some of its information gap that way.

After cannabis is metabolized by the body, traces of THC are left behind in human waste. Samples of waste water from sewage treatment plants can then be collected and tested for the substance.

The waste water would be collected over the course of one week every month for at least one year with the possibility of expanding to three if the results are useful, according to Statistics Canada’s contract proposal.

Six municipalities covering a combined population of nearly eight million people are already on board with the survey. But Statistics Canada would not say which municipalities have signed on.

Peluso indicated that the survey may also help the federal government track pot purchased on the black market even after the drug is legalized in July.

“It is possible that if we’re able to get the consumption numbers and figure out what legal sales are, we might be able to get some estimate of illegal consumption as well,” he said.

That’s because the waste water tests will show how much marijuana is actually consumed, while legal sales data will only show how much pot is bought on the official market.

The technology used to track marijuana consumption in waste water can also be used to detect other drugs like cocaine and methamphetamines. Peluso said Statistics Canada is planning on taking advantage of that data as well.

“The methodology is there. It handles cannabis and it handles everything else for roughly the same price,” he said. “You’d be a fool to say no from a statistical point of view.”

DATTA Engineering Inc., a civil engineering and infrastructure firm based in Ottawa, has already indicated interest in the contract.

Bidding for the contract closes Feb. 26.

Levi Garber, The Canadian Press


@katslepian

katya.slepian@bpdigital.ca

Like us on Facebook and follow us on Twitter.

Just Posted

New South Surrey-White Rock MP backs principle of pension reform

CARP members call on Liberals to enact legislation that puts pensioners first

Surrey school board says it’s in good financial shape despite $21M shortfall

Shortfall was $4.6 million higher than expected this school year in Surrey

White Rock councillor says circulating flyers are ‘total fear mongering’

Council critic Garry Wolgemuth says he stands by the information on the document

Surrey corner store robber sentenced

Manvir Singh Dhindsa entered guilty pleas related to three robberies

New group for parents of overdose victims launched by Langley mother

There is a lack of long-term resources for grieving parents

VIDEO: Top 10 B.C. budget highlights

The NDP is focusing on childcare, affordable housing and speeding up the elimination of MSP premiums

Team USA beats Canada 3-2 on the shootout to take home Olympic gold

Americans win their first gold medal since 1998

Two Haida men detained for crossing U.S.-Canada border

Edenshaw and Frisby travelled from Alaska to Prince Rupert for the All Native Basketball Tournament

Alberta takes out full-page ads in B.C. over strained relationship

It’s the latest move between the two provinces over progress on Trans Mountain pipeline expansion

B.C. teacher suspended over allegedly using N-word in worksheets

Trafalgar Elementary teacher under investigation by Vancouver School Board

Toddler swept away in Ontario floods

Toddler missing as flooding forces thousands from their homes in Ontario

BC BUDGET: New money helps seniors’ care shortage

Job stability for care aides key to recruitment, union leader says

Mixed messages on B.C.’s efforts to cool hot housing market

Economist says undersupply of homes in Metro Vancouver, Victoria and Kelowna will keep prices high

Foot found near Victoria belonged to missing Washington man

Coroner says no foul play suspected in death of 79-year-old Stanley Okumoto

Most Read