Air Quality in Greater Sudbury

Greater Sudbury’s air quality is actually better than the provincial average. Our latest Clearing the Air: Air Quality Trends report summarizes air quality in Greater Sudbury from 1998 to 2007.  Here are some highlights:

  · Sulphur dioxide emissions from smelters have been reduced by 93% since 1960

  · According to the Ministry of the Environment station on Ramsey Lake Road, air quality in Greater Sudbury was good or very good 94% of the time.

  · Sudbury’s current air quality is better than Toronto, Hamilton and Windsor and is comparable to other cities in northern Ontario.

  · Air concentrations of metals, including nickel, copper and lead, decreased

Real time information on local sulphur dioxide ground level concentrations can be found here. You can also read about the City of Greater Sudbury’s Air Quality Objectives and Accomplishments

Global comparison: According to a 2016 World Health Organization (WHO) study on air quality, Greater Sudbury ranks 145th out of nearly 3,000 cities worldwide who monitor their PM10 and PM2.5 levels. 

Please browse our reports, presentations and FAQ section to learn more about Greater Sudbury's air quality over time and to learn how you can help keep our air clean. Also in this section is a page on Emergency Preparedness for to know what to do during events where poor air quality puts people at risk.

If there is a resource regarding air quality that you would like to see that isn’t on our website, please contact our coordinator and we will do our best to get the information you’re looking for.