{"_meta":{"country":"Canada","standard":{"name":"CAAQS 24-hour PM2.5 (2020)","value_ugm3":27.0},"metric":"Days on which the 24-hour average PM2.5 exceeded the Canadian Ambient Air Quality Standard of 27 ug/m3.","period":"2019-2024","source":"National Air Pollution Surveillance (NAPS) Program, Environment and Climate Change Canada","source_url":"https://data-donnees.az.ec.gc.ca/data/air/monitor/national-air-pollution-surveillance-naps-program/","critical_caveat":"THESE ARE NOT SMOKE DAYS. PM2.5 is total particulate mass. A monitor cannot separate wildfire smoke from residential wood heating, road dust, industry or an inversion \u2014 and Canadian winters are full of wood heating in exactly the communities where wildfire smoke also lands.","years":["2019","2020","2021","2022","2023","2024"],"fields":["slug","name","province","exceedance_days","days_valid","max_24h_ugm3","by_year"]},"stats":{"cities":191,"station_days":468766,"exceedance_days_total":5864,"worst_city":["Edmonton","AB",135]},"rows":[["ab-edmonton","Edmonton","AB",135,2125,415.6,[10,4,19,11,70,27]],["ab-fort-mckay","Fort Mckay","AB",117,1818,367.0,[10,0,12,13,87,0]],["nt-yellowknife","Yellowknife","NT",116,2126,402.5,[6,0,2,8,73,27]],["bc-valemount","Valemount","BC",112,1460,113.1,[2,24,48,2,24,12]],["bc-golden","Golden","BC",94,2140,135.7,[5,8,30,14,26,11]],["ab-grande-prairie","Grande Prairie","AB",93,1813,632.9,[4,2,11,6,70,11]],["ab-fort-chipewyan","Fort Chipewyan","AB",91,1807,326.0,[6,0,4,2,79,0]],["ab-wapasu","Wapasu","AB",88,1805,283.2,[4,0,8,3,73,0]],["sk-buffalo-narrows","Buffalo Narrows","SK",88,1771,504.2,[3,1,20,7,57,0]],["ab-fort-saskatchewan","Fort Saskatchewan","AB",86,1798,332.8,[9,5,12,9,51,0]],["ab-fort-mcmurray","Fort Mcmurray","AB",84,1808,330.2,[5,0,5,5,69,0]],["ab-debolt","Debolt","AB",83,2148,368.5,[7,0,9,2,52,13]],["ab-bruderheim","Bruderheim","AB",81,2170,313.5,[6,2,12,8,33,20]],["ab-gibbons","Gibbons","AB",80,1814,283.5,[7,4,9,13,47,0]],["bc-fort-st-john","Fort St. John","BC",80,2032,461.0,[4,1,8,6,55,6]],["bc-grand-forks","Grand Forks","BC",80,2169,374.7,[7,13,30,12,15,3]],["bc-vanderhoof","Vanderhoof","BC",79,1873,266.1,[13,5,7,11,33,10]],["ab-anzac","Anzac","AB",77,1793,324.6,[4,0,7,5,61,0]],["ab-conklin","Conklin","AB",77,1806,318.2,[4,0,11,8,65,0]],["ab-redwater","Redwater","AB",77,1806,383.6,[7,4,9,10,47,0]],["sk-saskatoon","Saskatoon","SK",76,1784,270.0,[0,0,19,16,41,0]],["ab-st-albert","St. Albert","AB",73,2140,236.4,[4,4,10,6,36,13]],["nt-fort-smith","Fort Smith","NT",73,1999,201.9,[7,1,5,11,26,23]],["bc-houston","Houston","BC",72,2165,69.5,[18,11,12,6,22,3]],["bc-kamloops","Kamloops","BC",72,2169,595.6,[0,6,33,5,25,3]],["ab-drayton-valley","Drayton Valley","AB",70,2181,408.5,[3,4,13,2,37,11]],["ab-thorsby","Thorsby","AB",70,2171,247.4,[5,1,11,1,41,11]],["mb-flin-flon","Flin Flon","MB",70,1444,329.1,[0,1,22,2,17,28]],["ab-genesee","Genesee","AB",69,2170,229.9,[4,3,10,2,38,12]],["ab-hinton","Hinton","AB",68,2174,211.0,[6,2,14,10,28,11]],["ab-sherwood-park","Sherwood Park","AB",68,2170,325.8,[4,3,10,4,34,13]],["ab-elk-island","Elk Island","AB",67,1814,336.4,[4,2,11,8,42,0]],["bc-castlegar","Castlegar","BC",67,2094,423.5,[0,9,35,6,12,5]],["bc-prince-george","Prince George","BC",67,1795,170.4,[5,5,15,1,28,13]],["ab-janvier","Janvier","AB",66,726,261.0,[0,0,0,8,58,0]],["bc-vernon","Vernon","BC",64,2112,253.8,[1,8,28,6,21,0]],["sk-prince-albert","Prince Albert","SK",64,1802,353.6,[1,1,22,2,38,0]],["ab-beaverlodge","Beaverlodge","AB",62,1784,343.0,[4,0,3,6,49,0]],["ab-cold-lake","Cold Lake","AB",62,1784,336.3,[1,0,11,7,43,0]],["ab-ardrossan","Ardrossan","AB",61,2161,212.5,[4,3,8,4,31,11]],["ab-calgary","Calgary","AB",61,1811,201.0,[3,2,22,7,28,0]],["ab-red-deer","Red Deer","AB",61,2160,211.0,[5,1,14,3,35,10]],["mb-winnipeg","Winnipeg","MB",61,1997,146.4,[3,2,22,0,19,15]],["ab-edson","Edson","AB",59,2160,214.7,[2,0,8,6,35,8]],["ab-st-lina","St Lina","AB",58,2168,202.8,[2,0,5,4,30,17]],["ab-lamont","Lamont","AB",57,1335,164.0,[6,2,11,5,36,19]],["ab-caroline","Caroline","AB",56,2161,172.7,[2,4,21,3,18,8]],["sk-regina","Regina","SK",55,1786,215.6,[1,0,14,1,39,0]],["bc-cranbrook","Cranbrook","BC",54,2108,104.2,[1,5,15,15,16,2]],["ab-airdrie","Airdrie","AB",51,2023,192.2,[2,2,14,3,20,10]],["bc-kelowna","Kelowna","BC",49,1932,267.0,[0,7,24,3,15,0]],["sk-swift-current","Swift Current","SK",49,1791,204.7,[2,1,18,3,25,0]],["bc-quesnel","Quesnel","BC",48,1027,222.9,[5,1,14,7,31,10]],["qc-qu-bec","Qu\u00e9bec","QC",48,2164,101.3,[6,11,9,9,10,10]],["ab-steeper","Steeper","AB",41,2157,212.5,[2,2,12,0,22,3]],["ab-lethbridge","Lethbridge","AB",40,2109,85.6,[2,2,16,4,12,4]],["ab-medicine-hat","Medicine Hat","AB",38,1965,105.4,[2,1,16,2,15,2]],["sk-estevan","Estevan","SK",36,1798,186.2,[0,0,12,0,24,0]],["nt-norman-wells","Norman Wells","NT",35,1828,372.0,[3,0,3,10,16,3]],["qc-terrebonne","Terrebonne","QC",35,2139,191.0,[1,8,5,7,10,4]],["bc-burns-lake","Burns Lake","BC",34,2146,164.4,[1,3,1,1,19,9]],["bc-metro-vancouver-hope","Metro Vancouver - Hope","BC",34,2113,214.3,[0,7,6,13,8,0]],["mb-brandon","Brandon","MB",31,1928,88.8,[0,0,14,2,5,10]],["nt-fort-simpson","Fort Simpson","NT",31,265,317.6,[0,0,0,0,3,28]],["bc-williams-lake","Williams Lake","BC",30,2084,131.4,[0,1,11,5,13,0]],["bc-agassiz","Agassiz","BC",27,1942,168.5,[0,8,4,10,5,0]],["bc-metro-vancouver-chilliwack","Metro Vancouver - Chilliwack","BC",27,2152,208.7,[0,7,4,11,5,0]],["qc-senneterre","Senneterre","QC",27,2148,593.3,[0,0,4,0,21,2]],["ab-tomahawk","Tomahawk","AB",26,1369,127.0,[4,1,19,2,0,0]],["bc-mission","Mission","BC",26,2102,171.0,[1,8,3,8,6,0]],["qc-montr-al","Montr\u00e9al","QC",25,2169,190.0,[1,5,5,3,9,5]],["qc-rouyn-noranda","Rouyn-Noranda","QC",25,2045,325.4,[2,0,6,0,17,0]],["bc-nanaimo","Nanaimo","BC",24,2159,158.1,[5,10,4,3,2,0]],["bc-abbotsford","Abbotsford","BC",23,2172,172.6,[1,7,3,8,5,0]],["on-toronto","Toronto","ON",23,2171,103.2,[3,2,4,2,14,0]],["qc-la-dor","La Dor\u00e9","QC",22,2121,458.2,[0,1,4,0,14,3]],["yu-whitehorse","Whitehorse","YU",22,1671,55.8,[6,3,8,5,0,0]],["bc-duncan","Duncan","BC",21,2147,149.3,[2,10,1,3,5,0]],["on-hamilton","Hamilton","ON",21,2169,91.9,[2,1,4,3,16,1]],["on-north-bay","North Bay","ON",21,2061,400.3,[0,0,2,0,19,0]],["on-windsor","Windsor","ON",21,2160,141.2,[3,3,1,1,12,2]],["qc-longueuil","Longueuil","QC",21,2169,175.0,[0,4,2,2,10,3]],["bc-langdale","Langdale","BC",20,2005,163.4,[0,8,1,6,5,0]],["bc-squamish","Squamish","BC",20,2115,155.2,[0,9,2,5,4,0]],["bc-whistler","Whistler","BC",20,2021,166.6,[0,8,4,4,4,0]],["on-milton","Milton","ON",20,1788,90.7,[1,1,1,1,16,0]],["on-oakville","Oakville","ON",20,2162,103.9,[1,0,1,0,18,0]],["qc-charette","Charette","QC",20,2121,254.2,[1,4,4,1,10,0]],["qc-mont-saint-michel","Mont Saint-Michel","QC",20,2488,218.4,[0,0,4,0,14,2]],["bc-metro-vancouver-langley","Metro Vancouver - Langley","BC",19,2152,146.8,[0,8,1,6,4,0]],["bc-metro-vancouver-vancouver","Metro Vancouver - Vancouver","BC",19,2152,161.0,[2,10,2,3,2,0]],["qc-brossard","Brossard","QC",19,2063,164.5,[0,1,4,2,9,3]],["bc-metro-vancouver-north-vancouver","Metro Vancouver - North Vancouver","BC",18,2132,168.1,[0,8,3,5,4,0]],["bc-port-alberni","Port Alberni","BC",18,2074,141.7,[2,7,0,7,2,0]],["on-sudbury","Sudbury","ON",18,2185,276.0,[0,0,3,0,15,0]],["qc-laval","Laval","QC",18,2123,46.3,[1,5,3,3,4,2]],["bc-metro-vancouver-port-moody","Metro Vancouver - Port Moody","BC",17,2155,172.5,[0,8,2,4,3,0]],["on-barrie","Barrie","ON",17,1765,77.2,[2,1,2,0,12,0]],["on-guelph","Guelph","ON",17,2155,65.5,[1,2,2,0,12,0]],["bc-metro-vancouver-burnaby","Metro Vancouver - Burnaby","BC",16,2154,172.3,[0,8,2,4,2,0]],["bc-metro-vancouver-west-vancouver","Metro Vancouver - West Vancouver","BC",16,2030,155.6,[0,7,2,4,3,0]],["on-brantford","Brantford","ON",16,2164,62.5,[1,0,2,0,13,0]],["on-kitchener","Kitchener","ON",16,2149,57.2,[1,1,1,1,12,0]],["qc-l-vis","L\u00e9vis","QC",16,2163,83.8,[3,4,4,0,3,2]],["qc-st-z-phirin-de-courval","St. Z\u00e9phirin-De-Courval","QC",16,2119,153.1,[1,4,2,0,7,2]],["bc-courtenay","Courtenay","BC",15,2075,147.4,[2,7,1,3,2,0]],["bc-metro-vancouver-surrey","Metro Vancouver - Surrey","BC",15,2156,157.2,[0,8,1,3,3,0]],["bc-smithers","Smithers","BC",15,2091,49.8,[1,0,1,1,11,1]],["nb-edmundston","Edmundston","NB",15,2158,43.1,[3,0,0,4,4,4]],["nl-labrador-city","Labrador City","NL",15,2148,246.2,[0,0,0,0,11,4]],["on-belleville","Belleville","ON",15,1790,147.3,[1,0,2,0,12,0]],["on-burlington","Burlington","ON",15,1811,126.6,[1,0,0,0,14,0]],["on-dorset","Dorset","ON",15,1802,116.4,[0,0,1,0,14,0]],["on-newmarket","Newmarket","ON",15,1811,98.4,[0,0,2,0,13,0]],["on-peterborough","Peterborough","ON",15,2152,75.3,[1,0,1,1,12,0]],["qc-gatineau","Gatineau","QC",15,2119,192.8,[1,1,3,0,10,0]],["qc-saguenay","Saguenay","QC",15,2155,456.8,[0,1,2,0,9,9]],["bc-metro-vancouver-new-westminster","Metro Vancouver - New Westminster","BC",14,2144,108.1,[0,4,2,5,3,0]],["bc-metro-vancouver-pitt-meadows","Metro Vancouver - Pitt Meadows","BC",14,2097,146.3,[0,8,2,2,2,0]],["bc-victoria","Victoria","BC",14,2168,164.4,[0,8,2,2,2,0]],["on-london","London","ON",14,2168,79.2,[0,1,0,1,12,0]],["on-mississauga","Mississauga","ON",14,2153,76.4,[1,1,1,2,9,0]],["on-parry-sound","Parry Sound","ON",14,1805,114.0,[0,0,1,0,13,0]],["on-port-stanley","Port Stanley","ON",14,1790,84.6,[0,0,1,0,13,0]],["on-sarnia","Sarnia","ON",14,2174,116.9,[1,0,2,0,11,0]],["qc-saint-anicet","Saint-Anicet","QC",14,2085,135.1,[0,1,4,0,9,0]],["qc-shawinigan","Shawinigan","QC",14,1406,197.5,[0,0,3,0,7,4]],["bc-colwood","Colwood","BC",13,2072,168.5,[0,8,1,2,2,0]],["bc-metro-vancouver-richmond","Metro Vancouver - Richmond","BC",13,2172,144.9,[1,8,1,3,1,0]],["on-brampton","Brampton","ON",13,2172,86.1,[0,0,1,2,10,0]],["on-kingston","Kingston","ON",13,2171,204.1,[0,0,3,0,10,0]],["on-ottawa","Ottawa","ON",13,2155,188.9,[1,1,2,0,9,0]],["on-sault-ste-marie","Sault Ste. Marie","ON",13,2166,134.8,[0,0,4,0,9,0]],["bc-metro-vancouver-delta","Metro Vancouver - Delta","BC",12,2154,158.0,[0,7,1,3,2,0]],["nt-inuvik","Inuvik","NT",12,1755,118.2,[0,0,0,2,10,0]],["on-cornwall","Cornwall","ON",12,2170,102.2,[0,0,2,1,9,0]],["on-grand-bend","Grand Bend","ON",12,1761,114.1,[0,0,0,0,12,0]],["on-simcoe","Simcoe","ON",12,2143,80.1,[0,0,1,0,11,0]],["qc-saint-jean-sur-richelieu","Saint-Jean-Sur-Richelieu","QC",12,2114,118.2,[0,2,4,0,5,1]],["qc-trois-rivi-res","Trois Rivi\u00e8res","QC",12,1880,48.6,[1,4,1,0,1,5]],["bc-crofton","Crofton","BC",11,1881,157.9,[0,9,0,2,0,0]],["on-chatham","Chatham","ON",11,1784,120.9,[0,0,0,0,11,0]],["qc-deschambault","Deschambault","QC",11,2048,131.5,[0,2,4,0,3,2]],["qc-ditton","Ditton","QC",11,2058,108.7,[0,0,3,0,6,2]],["qc-granby","Granby","QC",11,1027,128.2,[0,0,0,2,7,2]],["qc-la-p-che","La P\u00eache","QC",11,2130,197.7,[0,0,2,0,9,0]],["qc-saint-faustin-lac-carr","Saint-Faustin-Lac-Carr\u00e9","QC",11,2072,230.1,[0,0,3,0,7,1]],["qc-saint-simon","Saint-Simon","QC",11,1556,126.1,[0,3,3,0,5,0]],["bc-campbell-river","Campbell River","BC",10,2075,160.9,[0,7,0,2,1,0]],["bc-powell-river","Powell River","BC",10,1468,130.2,[0,7,3,0,0,0]],["on-oshawa","Oshawa","ON",10,2155,67.3,[1,0,1,0,8,0]],["on-st-catharines","St. Catharines","ON",10,2150,106.2,[0,0,0,0,10,0]],["on-thunder-bay","Thunder Bay","ON",10,1997,52.2,[0,0,7,0,1,2]],["qc-auclair","Auclair","QC",10,2120,59.6,[0,0,0,0,6,4]],["qc-notre-dame-du-rosaire","Notre-Dame-Du-Rosaire","QC",10,2043,169.8,[0,2,3,0,3,2]],["qc-st-hilaire-de-dorset","St-Hilaire-De-Dorset","QC",10,2100,70.2,[1,0,2,0,5,2]],["on-tiverton","Tiverton","ON",9,2076,91.2,[0,0,0,1,8,0]],["qc-drummondville","Drummondville","QC",9,1088,139.0,[0,0,0,1,5,3]],["qc-tingwick","Tingwick","QC",9,2140,125.3,[1,0,2,0,5,1]],["qc-sherbrooke","Sherbrooke","QC",6,1135,130.8,[1,1,2,1,5,1]],["qc-lac-douard","Lac-\u00c9douard","QC",5,1002,37.4,[0,0,5,0,0,0]],["nl-grand-falls-windsor","Grand Falls - Windsor","NL",4,2110,45.0,[0,0,0,1,3,0]],["bc-kitimat","Kitimat","BC",3,2151,44.6,[2,0,0,0,3,0]],["bc-sparwood","Sparwood","BC",3,363,31.8,[0,0,0,0,0,3]],["bc-terrace","Terrace","BC",3,2016,37.0,[0,0,0,0,3,0]],["bc-elkford","Elkford","BC",2,359,73.5,[0,0,0,0,0,2]],["nl-st-john-s","St. John's","NL",2,2051,44.5,[0,0,0,0,2,0]],["qc-sept-les","Sept-\u00celes","QC",2,134,35.9,[0,0,0,0,0,2]],["nb-fredericton","Fredericton","NB",1,2155,30.1,[0,0,0,1,0,0]],["nb-moncton","Moncton","NB",1,2126,30.5,[0,0,0,0,1,0]],["nb-saint-john","Saint John","NB",1,2184,34.5,[0,0,1,0,0,0]],["nl-burin","Burin","NL",1,2168,43.2,[0,0,0,0,1,0]],["nl-mount-pearl","Mount Pearl","NL",1,2156,39.5,[0,0,0,0,1,0]],["ns-kentville","Kentville","NS",1,2148,30.0,[0,0,1,0,0,0]],["ns-sydney","Sydney","NS",1,2089,31.0,[0,0,0,0,1,0]],["on-petawawa","Petawawa","ON",1,1063,30.2,[0,0,1,0,0,0]],["bc-penticton","Penticton","BC",0,31,9.3,[0,0,0,0,0,0]],["mb-thompson","Thompson","MB",0,417,20.0,[0,0,0,0,0,0]],["nb-bathurst","Bathurst","NB",0,2152,24.2,[0,0,0,0,0,0]],["nb-miramichi","Miramichi","NB",0,1785,17.7,[0,0,0,0,0,0]],["nb-st-andrews","St. Andrews","NB",0,2157,19.5,[0,0,0,0,0,0]],["nl-corner-brook","Corner Brook","NL",0,2105,24.2,[0,0,0,0,0,0]],["ns-aylesford","Aylesford","NS",0,2086,20.8,[0,0,0,0,0,0]],["ns-dartmouth","Dartmouth","NS",0,2155,23.0,[0,0,0,0,0,0]],["ns-halifax","Halifax","NS",0,2066,21.1,[0,0,0,0,0,0]],["ns-pictou","Pictou","NS",0,2104,23.2,[0,0,0,0,0,0]],["ns-port-hawkesbury","Port Hawkesbury","NS",0,2164,21.8,[0,0,0,0,0,0]],["nu-iqaluit","Iqaluit","NU",0,218,19.0,[0,0,0,0,0,0]],["pe-charlottetown","Charlottetown","PE",0,2094,24.1,[0,0,0,0,0,0]],["pe-southampton","Southampton","PE",0,2086,22.7,[0,0,0,0,0,0]],["pe-wellington","Wellington","PE",0,1990,22.0,[0,0,0,0,0,0]]]}