Lethbridge - Percent Air Quality Hours

Percentage of hours at a given air quality level. The Air Quality Health Index (AQHI) is calculated based on the relative risks of a combination of common air pollutants that is known to harm human health. These pollutants are: Ozone (O3) at ground level, Particulate Matter (PM2.5/PM10), and Nitrogen Dioxide (NO2). Risks are defined as follows: 1-3 High Quality, 4-6 Moderate Quality, 7-9 Low Quality, 10+ Very Low Quality

Lethbridge air quality was high for 3.12% of reported hours in 2023, precipitously declining -88.1% from 26.1% in 2022. Lethbridge's growth rate ranks 20th provincially. The 7 segment had the largest increase over last year, increasing 2,352% to 0.61%.

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Lethbridge
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Percent Air Quality Hours

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Source Attribution

View this dataset on the Alberta Open Government Website

Lethbridge - Percent Air Quality Hours

Percent Air Quality Hours

Source Attribution

Last Updated - May 13, 2025