Trees Please Hamilton

Green Solutions to Air Pollution

Air Quality Update – McQuesten (III)

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A third and likely final full walkthrough was completed in McQuesten.

Wednesday July 26thMcQuesten Aug 14 - 1Wednesday August 2ndMcQuesten Aug 14 - 2.pngThursday August 3rdMcQuesten Aug 14 - 3.pngThursday August 3rdMcQuesten Aug 14 - 4.pngWednesday August 9thMcQuesten Aug 14 - 5.pngThursday August 10thMcQuesten Aug 14 - 6.pngOverall Heat Map (neighbourhood boundary in black): composed of data I collected as well as previous INHALE volunteer dataHeatMap McQuesten Aug 14th.pngTree MapTreeMap McQuesten Aug 14th.png

Reducing public exposure to PM2.5 follows similar patterns to Crown Point. Dust-outs from industrial vehicles result in higher levels along Barton St. between Parkdale and Woodward Ave’s.


This problem can be mitigated through combined efforts by the City to implement more regular street sweeping and through responsible actions by the industry to mitigate it’s impact on their neighbourhood – whether that be through better paving of internal roads, washing of transport vehicles, etc.

PM2.5 levels were generally higher in the busier traffic corridors: Barton St, Queenston Rd, Parkdale Ave. Queenston and Parkdale in particular have almost no tree cover – planting trees along the sides of the road could help reduce air pollution levels.


The Red Hill Valley Parkway is actually a good example of trees mitigating vehicle pollution – the trails just west of the freeway have comparable air quality to much of the low-vehicle density areas of McQuesten.

The story is similar in the southwest gridded region of McQuesten – air quality is generally worse – this could be because of proximity to Parkdale and Queenston, but the scarcity of trees certainly doesn’t help things. OtherTreeArea4.png

Above: Looking north from Queenston Rd, the lack of trees in the southwest region is particularly apparent.

Much of Britannia Ave, as well as Glassco and Adair and the western portion of Melvin tend to be in orange – the air quality has been made considerably worse by the active road re-construction taking place this summer. Some of this is unavoidable – the use of large construction vehicles and tear-up of old road materials are currently necessary parts of road re-construction. However, the dust could be controlled better through wet cutting (using water in combination with the cutting tool) to prevent the spread of silica dust, and ripping up the road in several smaller efforts rather than all at once can reduce dust spread (less time for residents to kick it up by driving their vehicles through it, and less time for wind to carry it through the neigbourhood) and reduce resident exposure time.

A reminder that if you’re living in the lower city, particularly in Crown Point, McAnulty, McQuesten, or the Beach Strip neighbourhoods, and would like to receive a free tree for your property in September – click here.

The Trees Please team will continue meeting in Crown Point and McQuesten in the coming weeks: check out the schedule and meeting locations here.




Author: treespleasehamilton

A project of the Hamilton Naturalists' Club and Environment Hamilton. Funding by Ontario Trillium Foundation.

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