(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

Investigators identify Abbotsford man as last to rent burnt car with body inside

48-year-old Sukhdev Dhailwal connected to car, autopsy findings yet to be revealed

Battle of the Ages at Abbotsford Curling Club

Special match on Wednesday sees masters challenge juniors for fun

Royal City Youth Ballet presents The Nutcracker

Seasonal favourite comes to Abbotsford Arts Centre on Sunday, Nov. 24

Abbotsford Business Excellence Awards winners crowned

The 24th annual event celebrated a great 2019 for local businesses

Abbotsford School District puts final offer on table for school support staff

Teamsters Local 31 scheduled to vote on district’s offer on Nov. 25

PHOTOS: NHL honours B.C. grandma’s battle against cancer in special match

Shea Theodore’s grandmother Kay Darlington dropped the puck at a special ‘Hockey Fights Cancer’ game

Province argues in B.C. Supreme Court for smudging in schools, says it relates to curriculum

Hearing concludes in case regarding indigenous cultural practice in Vancouver Island classroom

Mosaic Forest Management announces forestry shutdown

Thousands of forestry workers in Coastal B.C. will be affected by ‘curtailment’

Appeal dismissed for B.C. man who assaulted woman in ‘thoroughly modern’ fight over phone

‘Both were seeking evidence of cheating by the other,’ says B.C. Supreme Court in Nanaimo

Freezing rain on the way to B.C.’s Fraser Valley, Interior

Road conditions will be icy and slippery, Environment Canada warns

Woman accidentally shot by her son in Vancouver’s Oppenheimer Park, police say

Everyone involved, including the woman, not cooperating with investigators, VPD says

University of Victoria threatens any athletes who speak about rowing coach probe

Barney Williams has been accused of harassment and abuse

B.C.’s largest catholic archdiocese names 9 clergymen in sex abuse report; probes ongoing

Vancouver Archdioces presides over 443,000 parishoners in B.C.

Smudging in B.C. classroom did not affect Christian family’s faith, says school district lawyer

Lawyers make closing arguments in a Port Alberni case about the Indigenous cultural practice

Most Read