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

One person trapped in rollover crash on Malahat

Fuel truck leaking, Trans-Canada Highway expected to be closed until 8 p.m.

Bank gives West Shore man expired money for U.K. trip

Canadian dollars exchanged for useless currency

Two kayakers rescued after falling into the water off Metchosin

Search and Rescue warns residents to check the forecast before heading out

Victoria man says new device helps him better control his diabetes

Ryan Rock thrilled with ease of use, but FreeStyle Libre not for everyone, pharmacist warns

North Saanich patient places “Doctor Wanted” ad

With her GP retiring, one patient takes action

VIDEO: Campers leave big mess at rural Port Renfrew campsite

Vehicle parts, garbage, a mattress, lawn chairs, beer cans, and even fecal matter left in the area

Vancouver, Squamish pipeline challenges dismissed by court in B.C.

Justice Christopher Grauer ruled the province’s decision to issue the certificate was reasonable

Early learning programs for Indigenous kids get $30M boost

B.C. government to help expand Aboriginal Head Start Association programs with three-year funding

Ferry sailing cancelled after ship’s second officer falls ill

Coastal Inspiration’s 8:15 p.m. sailing to Nanaimo on Tuesday cancelled, passengers to be compensated

B.C. man recounts intense rescue of couple caught in mudslide

Something told Dan Anderson to go back to the scene of a major mudslide on the long weekend.

The priciest home for sale in Canada: A $38M Vancouver penthouse

Canada’s luxury real estate: The top 10 most expensive properties for sale right now

9 temperature records broken across B.C. as warm weather continues

Clearwater, Golden, Williams Lake, Malahat a few of the cities that broke records Wednesday

COLUMN: Stanley Cup final prediction

Upstart Vegas Golden Knights clash with Washington Capitals

Vancouver Island wildfire burning near Campbell River coal mine

The fire is suspected to be human caused at this time

Most Read