(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

Cans and bottles destined for Cops for Cancer fundraiser stolen from Sooke RCMP Detachment

Cans and bottles collected to raise funds for Canadian Cancer Society

Colwood taking steps to improve intersection safety after two motor vehicle incidents in one week

Pedestrian and cyclist struck in two separate incidents at Sooke and Metchosin Roads

PHOTOS: The King of Rock and Roll runs the 25th Annual King and Queen of the Hill Race

Lambrick Park Secondary students, staff, alumni take on Mount Douglas

Free bike exchange program available to Greater Victoria kids

The Re-Buy-Cycle Shop in Langford offers free bikes for young learners

Esquimalt café cooks up connections for all abilities

A Kinder Cup focuses on positivity, inclusivity and connection

Handgun crackdown, health spending and transit plans latest campaign promises

Friday was the end of a busy week on the campaign trail

Police arrest B.C. phone scammer linked to illegal call centres in India

Person arrested in Burnaby here on a work visa, says police

Air Canada forced girl, 12, to remove hijab: civil rights group

The San Francisco Bay Area office of the Council on American-Islamic Relations calling for change

Man from Winnipeg who was hiking alone found dead in Banff National Park

RCMP say the man was hiking alone on Mount Temple Thursday

One-in-five British Columbians think they’ll win big while gambling: study

Roughly 58 per cent of British Columbians bought at least one lottery ticket in past year

Resident finds loaded shotgun inside a duffle bag in Kelowna alleyway

RCMP seized a loaded 12-gauge shotgun, ammunition, clothing and other items

Graffiti, calls and Snapchat: RCMP probe string of threats targeting Kamloops schools

There have been nine different threats made to four different schools in the city

B.C. truck drivers to face higher fines for not using winter tire chains

As of Oct. 1, not using chains on the highway when required could net you a $598 ticket

Singh campaigns in Toronto, May in Winnipeg, as Liberal and Tory leaders pause

All parties expected to be back on the campaign trail Sunday

Most Read