FLCN21 CWTO 190945 AIR QUALITY HEALTH INDEX FORECAST FOR ONTARIO ISSUED JOINTLY BY ENVIRONMENT CANADA AND THE PROVINCE OF ONTARIO AT 6:00 A.M. EDT SUNDAY 19 APRIL 2026 FOR TODAY AND MONDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 P.M. EDT. TORONTO TORONTO DOWNTOWN TORONTO EAST TORONTO NORTH TORONTO WEST HAMILTON HAMILTON DOWNTOWN HAMILTON MOUNTAIN HAMILTON WEST BURLINGTON OAKVILLE MILTON MISSISSAUGA BRAMPTON CORNWALL OTTAWA GATINEAU. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. WINDSOR WINDSOR DOWNTOWN WINDSOR WEST. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. CHATHAM. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. SARNIA. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. PORT STANLEY. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. LONDON. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. GRAND BEND. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TIVERTON. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. BRANTFORD. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. KITCHENER. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. GUELPH. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. ST. CATHARINES. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. OSHAWA. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. NEWMARKET. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. BARRIE. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. PETERBOROUGH. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. DORSET. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. PARRY SOUND. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. BELLEVILLE. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. KINGSTON. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. NORTH BAY. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. SUDBURY. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. SAULT STE. MARIE. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. THUNDER BAY. TODAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. TONIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 3 OR LOW RISK. MONDAY..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. MONDAY NIGHT..MAXIMUM AIR QUALITY HEALTH INDEX 2 OR LOW RISK. AIR QUALITY HEALTH INDEX SCALE: 1-3 LOW HEALTH RISK 4-6 MODERATE HEALTH RISK 7-10 HIGH HEALTH RISK ABOVE 10 VERY HIGH HEALTH RISK FOR MORE INFORMATION, CONSULT WWW.AIRHEALTH.CA END