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

Four-storey development slated for Hall-Front intersection in Nelson

Building will be mixed commercial and residential

Wildflower School to keep its bee hive

City council voted to give the school a bylaw exemption

Nearby wildfire closes Idaho Peak

The popular hiking spot is off limits to the public

Granite Pointe’s GM honoured among world’s top golf teachers

David Belling has been included on a top-100 list

VIDEO: Nelson Leafs prepare for new season with training camp

Forty-seven players hit the ice last weekend

VIDEO: Monday Roundup: Aug. 13, 2018

The Nelson Star’s weekly news roundup

Get involved in the Great Canadian Bumble Bee Count

Environmental organization develops app to help with the nationwide count

Pesticides linked to bee deaths will be phased out in Canada, sources say

Neonicotinoids, or neonics, are a class of pesticides used by farmers and hobby gardeners alike

Wildfire smoke blankets B.C. and Alberta, prompting air quality advisories

About 25 new wildfires were sparked between Monday morning and midday Tuesday

Big bucks for painting of small B.C. town

A 1965 painting of Ashcroft by E. J. Hughes exceeded its pre-auction estimate at a recent sale.

Local WHL talent earn hockey gold with Team Canada

Local WHL talent part of U18 championship team at Hlinka Gretzky Cup tournament

Column: Mother orca’s display of grief sends powerful message

The grief of this orca mother may not be visible anymore, but we must not forget.

Seven people with ties to Red Scorpions gang arrested in B.C. drug bust

Delta police have secured 94 charges against seven people, including drug and firearm offences

Most Read