Air quality alert statistics
Special Air Quality Statements 2015 to 2024| Air quality forecast region | SAQS 2024 | SAQS 2023 | SAQS 2022 | SAQS 2021 | SAQS 2020 | SAQS 2019 | SAQS 2018 | SAQS 2017 | SAQS 2016 | SAQS 2015 |
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| Algonquin | 0 | 4 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Atikokan - Upsala - Quetico | 2 | 2 | 0 | 4 | 0 | 1 | 0 | 0 | 0 | 0 |
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| Attawapiskat | 0 | 3 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
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| Bancroft - Bon Echo Park | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Barrie - Orillia - Midland | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Belleville - Quinte - Northumberland | 1 | 4 | 1 | 3 | 0 | 0 | 1 | 0 | 3 | 0 |
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| Big Trout Lake - Sachigo Lake | 4 | 6 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 1 |
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| Brockville - Leeds and Grenville | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Burk's Falls - Bayfield Inlet | 0 | 3 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
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| Chapleau - Gogama | 0 | 3 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
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| City of Hamilton | 0 | 5 | 2 | 4 | 0 | 0 | 2 | 2 | 2 | 0 |
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| City of Ottawa | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| City of Thunder Bay | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 1 |
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| City of Toronto | 1 | 4 | 3 | 3 | 2 | 1 | 2 | 2 | 3 | 3 |
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| Cornwall - Morrisburg | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Dryden - Ignace | 3 | 4 | 0 | 3 | 0 | 1 | 2 | 0 | 0 | 0 |
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| Dufferin - Innisfil | 0 | 2 | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Dunnville - Caledonia - Haldimand | 0 | 5 | 1 | 3 | 0 | 0 | 2 | 0 | 1 | 0 |
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| Elgin | 0 | 4 | 2 | 3 | 1 | 0 | 4 | 0 | 2 | 0 |
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| Elliot Lake - Ranger Lake | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Fort Frances - Rainy Lake | 3 | 2 | 0 | 5 | 0 | 1 | 2 | 0 | 0 | 1 |
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| Fort Hope - Webequie | 3 | 3 | 0 | 2 | 1 | 1 | 1 | 0 | 0 | 0 |
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| Fort Severn | 3 | 4 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 1 |
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| Geraldton - Manitouwadge - Hornepayne | 1 | 3 | 0 | 2 | 1 | 1 | 0 | 0 | 0 | 0 |
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| Greater Sudbury and Vicinity | 0 | 3 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
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| Grey - Bruce | 0 | 3 | 2 | 2 | 0 | 0 | 2 | 0 | 4 | 0 |
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| Haliburton | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Halton - Peel | 1 | 4 | 3 | 3 | 2 | 0 | 2 | 2 | 3 | 2 |
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| Huron - Perth | 1 | 5 | 3 | 3 | 2 | 0 | 2 | 0 | 4 | 0 |
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| Kapuskasing - Hearst | 1 | 3 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
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| Kenora - Nestor Falls | 4 | 4 | 0 | 6 | 0 | 1 | 2 | 1 | 0 | 1 |
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| Kingston - Prince Edward | 1 | 4 | 0 | 3 | 0 | 0 | 0 | 0 | 2 | 0 |
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| Kirkland Lake - Temiskaming Shores - Temagami | 0 | 3 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 |
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| Lake Nipigon - Wabakimi | 2 | 3 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
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| London - Middlesex | 0 | 4 | 1 | 3 | 1 | 0 | 3 | 0 | 2 | 0 |
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| Manitoulin - Blind River - Killarney | 0 | 3 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
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| Moosonee - Fort Albany | 0 | 3 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
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| Niagara | 0 | 4 | 1 | 3 | 0 | 0 | 2 | 0 | 1 | 0 |
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| Nipigon - Marathon - Superior North | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| North Bay - West Nipissing | 0 | 3 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 |
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| Oxford - Brant | 0 | 5 | 1 | 3 | 0 | 0 | 2 | 0 | 2 | 0 |
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| Parry Sound - Muskoka | 0 | 2 | 0 | 2 | 0 | 0 | 1 | 0 | 0 | 0 |
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| Peawanuck | 1 | 2 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 0 |
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| Peterborough - Kawartha Lakes | 1 | 3 | 1 | 3 | 0 | 0 | 1 | 0 | 2 | 0 |
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| Pickle Lake - Wunnummin Lake | 5 | 5 | 0 | 3 | 1 | 2 | 3 | 0 | 0 | 0 |
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| Prescott and Russell | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Red Lake - Ear Falls | 4 | 5 | 0 | 6 | 1 | 2 | 4 | 1 | 0 | 1 |
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| Renfrew - Pembroke - Barry's Bay | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Sandy Lake - Pikangikum | 6 | 6 | 0 | 4 | 1 | 2 | 6 | 3 | 0 | 1 |
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| Sarnia - Lambton | 1 | 5 | 3 | 5 | 4 | 1 | 6 | 2 | 4 | 2 |
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| Sault Ste. Marie - Superior East | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Simcoe - Delhi - Norfolk | 0 | 5 | 1 | 3 | 0 | 0 | 2 | 0 | 2 | 0 |
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| Sioux Lookout - Savant Lake | 3 | 4 | 0 | 3 | 0 | 1 | 3 | 0 | 0 | 0 |
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| Smiths Falls - Lanark - Sharbot Lake | 0 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Stirling - Tweed - South Frontenac | 0 | 2 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Superior West | 1 | 2 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 1 |
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| Timmins - Cochrane | 0 | 3 | 0 | 2 | 0 | 1 | 1 | 0 | 0 | 0 |
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| Waterloo - Wellington | 0 | 3 | 2 | 3 | 0 | 0 | 2 | 0 | 1 | 0 |
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| Wawa - White River - Pukaskwa | 1 | 2 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 |
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| Windsor - Essex - Chatham - Kent | 1 | 6 | 3 | 3 | 4 | 0 | 6 | 1 | 8 | 1 |
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| York - Durham | 1 | 4 | 3 | 3 | 2 | 0 | 2 | 2 | 4 | 1 |
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| ONTARIO | 9 | 12 | 4 | 9 | 6 | 4 | 15 | 7 | 10 | 7 |