Subway Smells (6/11/04)
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The Mystery of the Smelly Subway

 Last August, Anne Smyth of Toronto wrote In Transit about, well, a bad smell. “I use the Lansdowne subway station, but most times I avoid it by taking the streetcar instead -- because the station stinks like a sewer! This is not once in a while but all the time -- and I would like to know why.”

 In January 2004, Micky Banks of Toronto wrote, “About a year ago, I overheard a subway conductor, while training a new recruit, explain that the reeking, putrid stink between the Dundas and Lansdowne stations was the result of a broken sewer line. I patiently assumed that the work that occurred for a few months at the Dundas station might include rectifying the problem.

 “I have a couple of health concerns -- firstly is this toxic? And secondly, hasn't it been long enough that this should have been repaired by now? Those of us who travel east to Bay station to work every day sit in the first car as it situates us properly when we disembark. We are tired of this stink, especially first thing in the morning. Many thanks for any light you can shed on this subject.”

 I have had the pleasure of smelling this particular scent at Lansdowne station -- and also in the underground train systems of other cities. The TTC is aware of the problem, but the source is still a mystery. General Superintendent Warren Bartram says the smell is strongest near the eastern end of Dundas West station. He says the odour is likely carried down the tunnel to Lansdowne station as subway trains suck air behind them.

  TTC staff did locate stagnant water under the station platform at Dundas West, as well as some leaks. The whole subway structure, including the tunnel and underground drains has been cleaned repeatedly, to no avail. Says Bartram, “We’ve plugged the leaks, we’ve flushed and vacuumed the stagnant water, and we’ve been unsuccessful (at eliminating the smell).”

 He admits that while the odour is unwelcome, it is not toxic. “We had water the tested by the city, because we thought that perhaps there was a broken sewer. It’s high in E. coli, but not high like a sewer.” E. coli bacteria are commonly found in the intestines of humans and animals, and certain types can make people ill when contaminated food or water is consumed.

 Part of the subway tunnel lies below the water table, and while something strange could be seeping into the drains that run under track level, there is no obvious answer to the puzzling stench. The transit official says, “Usually an odour like this comes from an active leak, and there isn’t one right now -- and we’re a little stymied.”

 The TTC has other priorities underground, like keeping the tunnels in good repair, but crews will continue to hunt the smell when time is available. Says Bartram, “We’re going go back out and look for more evidence of stagnant water, look for more places water may be coming into the structure.”

 One possibility is that the an ancient sewer may have leaked  years ago, and the, er, contaminant, still lingers. Pipes would have likely been located under an former street that disappeared when high-rise apartments were built above Dundas West station. It could even come from rotting vegetation trapped underground --  time moves very slowly beneath street level.

 So you’ll have to hold your nose folks, until some stalwart smell-sleuth solves the mystery. If funds are found, the TTC is planning to build a second exit from Dundas West station as soon as 2005, and perhaps the answer will be unearthed during construction.

 

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© Ed Drass 2008