On the Metro Vancouver air quality website, there is various amount of public information available. Information sections include air emission data, programs aiming to reduce harmful emissions, woodsmoke and its potential dangers to your health, and greenhouse gas management. Apart from air quality, they have information on waste management, water quality, and other environmental resources. It is a compendium of advice and useful information about some of the resources Vancouver consumes, and what the city is doing to try and change our consumption.
Air quality monitoring network for Hamilton:
http://www.hamnair.ca/hamilton-air-quality-monitoring-network.aspx
There are 18 stations, serving 520 000 people, covering 1138 km2. (from Statistics Canada: http://www12.statcan.ca/english/Profil01/CP01/Details/Page.cfm?Lang=E&Geo1=CSD&Code1=3525005&Geo2=PR&Code2=35&Data=Count&SearchText=hamilton&SearchType=Begins&SearchPR=01&B1=All
Therefore, each station serves around 28 888 people (520 000/18) and covers an area of 63.2 km2 (1138/18).
Since the 2011 report has not been published yet, I took data from the 2010 report found here: http://www.hamnair.ca/hamn-annual-reports.aspx
I looked at the statistics for January 10th, the first measurement of that year. Sulphur dioxide levels were 87 ppb (particles per billion) and total reduced sulphur was 7.0 ppb. The reason I wanted to look at sulphur dioxide levels is because important man-made sources of sulphur dioxide are fossil fuel combustion, manufacture of sulphuric acid, conversion of wood pulp to paper, and coal mining. According to the reference standard posted on their site, this measurement/parameter level is usually at 4- hour AAQC (Ambient Air Quality Criteria) 100 ppb (parts per billion), therefore the level of sulphur dioxide measured on this day is below this and that could possible be because there are not as many fires in the winter time.
blog: blogs.ubc.ca/amlui89