Pollutant Concentration Graphs |
| Note: The pollutant concentrations on this web page are based on automatically polled data and have not undergone final verification. |
O3 1-Hour Concentrations at London |
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Note: Ontario 1-hour Ambient Air Quality Criterion (AAQC) for O3 = 80 ppb. |
PM2.5 1-Hour Concentrations at London |
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NO2 1-Hour Concentrations at London |
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Note: Ontario 1-hour Ambient Air Quality Criterion (AAQC) for NO2 = 250 ppb. |
Air Pollutant Graph Data Courtesy of Air Quality Ontario