(Unsplash)

Down the toilet: Study compares pot, meth, cocaine found in sewage across Canada

More meth found in Vancouver, more cannabis in Halifax

What you flush down the toilet says a lot about you, at least to Statistics Canada.

The agency released results Monday from a year-long sewage study in five major cities, including Vancouver, where it tested the wastewater for various drugs. It began in March 2018 and ran until the spring of 2019.

Meth use was highest in Vancouver and Edmonton, the results suggest, while cannabis use was highest in Montreal and Halifax.

The average methamphetamine load across all five cities was 270 grams per million people per week, but the average in Vancouver and Edmonton was 3.7 times higher than the next cities, Montreal and Toronto.

Despite B.C.’s reputation as the most cannabis-friendly province, Vancouver had the second-lowest consumed amount of THC, the psychoactive ingredient in cannabis.

Researchers measured the amount of pot in the cities’ wastewater using a compound produced by the body when cannabis is consumed.

The average weekly load in Vancouver was 313 grams per million people, compared to 936 grams in Halifax and 833 grams in Montreal. Toronto was similar to Vancouver, at 327 grams, while Edmonton lagged behind with 244 grams.

Despite recreational cannabis becoming legal in October 2018, the study found no spike of the substance in sewage that month. The highest amounts were recorded in May and June 2018, with a smaller uptick in December.

Cocaine use was fairly steady across the five cities, with Edmonton coming in the lowest at 268 grams per million people per week while Vancouver came in on top at 425 grams.

READ MORE: Here’s a first look at Canada’s sewage tests for cannabis use

READ MORE: Statistics Canada sifting through sewage to gauge pot consumption


@katslepian

katya.slepian@bpdigital.ca

Like us on Facebook and follow us on Twitter.

Just Posted

Report of gunshots leads to discovery of deceased male in Campbell River

Police conduct investigation in the south end of Campbell River

Community garden offers learning experience for all

Cedar Elementary converts former playground site into community garden

Wind warning issued for Campbell River

Wind could reach speeds of up to 70km/h: Environment Canada

‘World-class’ dinner on offer at NIC’s The Bistro

Meal prepared by Culinary Team BC as tune-up before 2020 World Culinary Olympics competition

RCMP Emergency Response Team called in to arrest man at Black Creek General Store

42-year-old Campbell River man facing numerous charges

VIDEO: B.C. man’s yard comes alive with grizzlies at night

Malakwa man has captured images of 12 different grizzlies on video

First case of ‘probable’ vaping-related illness found in B.C.

Health officials warn this could be the first of many

Fire response at Trans Mountain Burnaby tank farm could take six hours: audit

Site doesn’t have mutual aid response agreement with Burnaby fire department

A year after pot legalization in Canada, it’s a slow roll

It’s one year into Canada’s experiment in legal marijuana, and hundreds of legal pot shops have opened

ELECTION 2019: Climate strikes push environment to top of mind for federal leaders

Black Press Media presents a three-part series on three big election issues

Suspect hits woman with pipe, jumps into waiting truck in downtown Nanaimo

Police say victim believes ‘vicious assault’ was an attempted purse-snatching

ICBC willing to loosen grip on driver claim data, David Eby says

Private insurers say claims record monopoly keeps them out

B.C. principal suspended for failing to help student who reported inappropriate touching

Principal didn’t remove student from the teacher’s class nor call the parents within a reasonable time

Port Moody mayor goes back on unpaid leave during sex assault investigation

Rob Vagramov said he intends to return as mayor in three or four weeks

Most Read