
In March 2018, Statistics Canada launched the largest "wastewater-based epidemiology pilot test" ever conducted in North America. Over a 12 month period, it collected wastewater samples across the country in order to test for traces of cannabis and other drugs. The pilot captured 8.4 million people in Vancouver, Edmonton, Toronto, Montréal, and Halifax. And it was allegedly timed to coincide with the legalization of cannabis in Canada on October 17, 2018.
This week Statistics Canada published its findings. While the study does cover over 8 million people, it was not intended to be representative of the entire Canadian population. Some sites, such as Vancouver, had nearly complete coverage of the metro area population. While others, such as the Halifax site, only covered about half of the metropolitan area. In any event, the findings are interesting.

Above is one example: methamphetamine load per capita for the five study cities. The y-axis is grams per million people per week. And the time period is, again, March 2018 to February 2019. Average levels for Edmonton and Vancouver were found to be about 3.7x higher than those in Montréal and Toronto. There was also no apparent seasonal/monthly variation, which is something else they looked at.
Here I learned that a large portion of this drug passes through the body unchanged. And so the concentrations they discovered in wastewater is likely a fairly direct indicator of consumption within the population. Stats Canada is still reviewing its findings and evaluating this approach to collecting large scale urban data. But I am certain we'll be seeing more of these kinds of urban studies.
Chart: Statistics Canada
I was out for a bike ride last night and, on my way home, I decided to try out the new dedicated bike lane on Adelaide Street. Usually I would take King Street, but it was completely full because of Caribana parties.
For those of you who may not be aware, the city of Toronto is currently piloting two dedicated bike lanes on Adelaide Street and Richmond Street in the downtown core. Both streets are one-way and because the lanes were so big to begin with (highway-like spacing), I’m told that these new bike lanes didn’t even eat up a driving lane.
Here’s a map of the pilot area:
Given that dedicated bike lanes are a scarce resource here in Toronto, I have to say that it was rather luxurious having my own piece of road. And because there’s no longer any fear of parked car doors swinging open, I was able to ride a lot faster than I normally would.
But as my friend Evgeny pointed out earlier this week, there’s a big difference between dedicated and grade separated bike lanes. Indeed, on my trip from Bathurst Street to Church Street last night, I encountered 3 cars parked in my lane.
Fine or fire? Who will fix it, eh?#canadapostcares #300dollars pic.twitter.com/TIadlC5Omm
— Evgeny Tchebotarev (@tchebotarev)
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So, I hope that these bike lanes become a permanent fixture downtown, but that the city makes them grade-separated. I’m sure people will use them. At the same time, I think they could also act as a catalyst for more pedestrian life along both of these streets.
If you haven’t yet tried them out, I would encourage you to do so. The city is tracking usage and so you would be supporting the cause. And if there’s anybody parked in your lane, below is one way to handle it. It’s a video by Casey Neistat out of New York. If you can’t see it below, click here.
[youtube https://www.youtube.com/watch?v=bzE-IMaegzQ?rel=0]