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

Mayoral results from across B.C.

Voters in 162 municipalities in B.C. set to elect mayor, council, school board and more

Who won and who didn’t in the Lower Mainland votes

A look at the region’s mayoral races, starting with Doug McCallum coming back to win in Surrey

Every vote counts: 10 tightest races in B.C.’s municipal elections

Peachland saw their election decided by just one vote

Highway 3 vehicle crash cleared

Drive BC reporting the incident happened 20 kilometres west of Manning Park

Majority of residents who responded to survey support marijuana sales in Hope

647 responded to a District of Hope survey on the sale and use of recreational pot

Tommy Chong says cannabis legalization makes him proud to be a Canadian

Legendary marijuana advocate and comedian celebrates cultural milestone at Kelowna event

Fraser Valley man dead after head on crash in Okanagan

Accident occurred at about 7:35 a.m.

Newly-elected Lower Mainland mayor won’t drink his city’s tap water

White Rock’s Darryl Walker is concerned about its quality

Kennedy Stewart challenged with building bridges as mayor of Vancouver: expert

The former NDP MP, who ran as an Independent, will lead 10 councillors divided across four parties

B.C. Youtuber to seal himself ‘in a jar’ to demonstrate impacts of climate change

Kurtis Baute wants to see how long he can last in a 1,000 cubic foot, air-tight greenhouse

One of Taiwan’s fastest trains derails, killing at least 18

The train was carrying more than 360 people

Scheer marks one-year countdown to federal election with campaign-style speech

Conservative Leader insists that it will be Justin Trudeau who ‘makes it personal’

Canada Post union announces rotating strikes in four Canadian cities

Mail will still be delivered but it will be delayed

Vancouver drag queens receive royal treatment during Kootenay Pride

Vancouver drag queens discuss the importance of Pride and growing acceptance of LGBTQ community

Most Read