(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

Warrant issued for Chilliwack prolific offender

Do not attempt to apprehend David Allen Geoghegan, 29, police caution

Chilliwack family’s dog missing after using online pet-sitting service

Frankie the pit bull bolted and hit by a car shortly after drop off through Rover.com

VIDEO: New supportive housing in Chilliwack almost ready to welcome residents

Grand opening Friday saw dignitaries join with health, policing, and housing reps on Trethewey

Man who once killed a fellow inmate convicted of threatening guard at Kent

No prison time for threat nine years after MMA-style beating death in Maple Ridge

BREAKING: Vehicle fire on Highway 1 between Chilliwack and Abbotsford

One westbound lane blocked after 11:30 a.m. on Friday leading to traffic delays

Listening to Christmas music too early could affect your mental health

Linda Blair, a clinical psychologist, says preemptive Christmas music can trigger anxiety

Port Alberni mom takes school district to court over Indigenous smudging, prayer in class

Candice Servatius, who is an evangelical Christian, is suing School District 70

Body found after SUV found fully engulfed in flames in Abbotsford field

The Integrated Homicide Investigation Team have been called in

Family of B.C. man killed in hit-and-run plead for tips, one year later

Cameron Kerr’s family says the driver and passengers tried to cover their tracks

Princeton couple pays for dream vacation with 840,000 grocery store points

It’s easy if you know what you are doing, they say

B.C. wildlife experts urge hunters to switch ammo to stop lead poisoning in birds

OWL, in Delta, is currently treating two eagles for lead poisoning

B.C. First Nations drop out of court challenge, sign deals with Trans Mountain

Upper Nicola Band says deal represents a ‘significant step forward’

VIDEO: B.C. man trapped under ATV for days shows promise at Victoria hospital

Out of induced coma, 41-year-old is smiling, squeezing hands and enjoying sunshine

Most Read