(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

Warning issued after several overdoses in Castlegar

Interior Health says the overdoses appear to be the result of cocaine contaminated with fentanyl.

Hundreds turn out for Singh, NDP candidate rally in Penticton

The messaging was clear, NDP “chooses you”

Castlegar mural defaced with swastika

RCMP do not suspect that the graffiti was the act of a hate group.

How local candidates are using Facebook to advertise directly to you

Liberal campaign is the biggest spender on Facebook ads in South Okanangan–West Kootenay

Kootenay-Columbia candidates attend Creston Valley Chamber of Commerce 2019 election forum

About 120 people attended the Creston Valley Chamber of Commerce 2019 election forum on Oct. 16 at the Prince Charles Theatre.

Greta Thunberg meets with First Nations chief in Fort McMurray

Thunberg has turned her protest against climate change into a global movement

Canucks hang on for 3-2 win over Rangers in New York

Vancouver scores three times in first period

More beef products recalled due to possible E. coli contamination

The food safety watchdog has been investigating possible E. coli 0157:H7

B.C. VIEWS: How to get the best deal on your ICBC car insurance

ICBC slowly being dragged into the 21st century

Pot legalization has gone ‘well’, but ‘yellow flags’ on vaping: task force chair

Canada legalized cannabis for non-medical use on Oct. 17, 2018,

ELECTION 2019: Federal leaders hit final 24 hours of campaign

Many leaders remain in B.C. for the final hours of the campaign

Jack’s Devils beat Quinn’s Canucks 1-0 in NHL brother battle

New Jersey youngster scores first career goal against Vancouver

Most Read