Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 0.58 060831008 Santa Maria - Broadway CA 0.53 061130004 Davis CA #coincidences 10-30 and Corr > 0.5 0.71 000053201 PÉMONCA QC 0.70 000054801 Stukely QC 0.68 000111101 Chilliwack BC 0.68 000100023 Terrace BC Access Centre BC 0.59 000100012 Kitimat Riverlodge BC 0.59 000070203 Brandon MB 0.57 000100033 Whistler Meadow Park BC 0.57 000050504 Université Chicoutimi QC 0.51 000100016 Kitimat Rail BC 0.50 000050126 Sainte-Anne-de-Bellevue QC Correlation between RAQMS!dG!n and AIRNow diurn-avg surface PM2.5 #coincidences >30 and Corr > 0.5 0.82 060831008 Santa Maria - Broadway CA 0.79 011011002 MONTG AL 0.75 061130004 Davis CA 0.74 060371002 Burbank - W. Palm Ave CA 0.73 011190002 GASTON AL 0.72 061110007 Thousand Oaks - Moorpark Road CA 0.72 060371103 Los Angeles - N. Main Street CA 0.71 090090027 New Haven - Criscuolo Park CT 0.71 060832004 Lompoc H Street CA 0.70 060370016 Glendora - Laurel CA 0.70 000020401 SOUTHAMPTON PE 0.69 060731002 Escondido CA 0.67 060731008 Camp Pendleton CA 0.65 061112002 Simi Valley - Cochran Street CA 0.65 060658001 Riverside - Rubidoux CA 0.64 060711004 Upland CA 0.64 000054501 L'Assomption QC 0.63 060590007 Anaheim CA 0.63 000060512 Hamilton Downtown ON 0.61 080310025 Denver Animal Shelter - 678 S. Jason St. CO 0.61 061110009 Piru - Pacific CA 0.58 120571065 gandy FL 0.56 010732006 HOOVER AL 0.54 000062501 Tiverton ON 0.52 120590004 Bonifay FL 0.52 090050004 Thomaston CT 0.52 060670006 Sacramento - Del Paso Manor CA 0.52 060010011 Oakland West CA 0.50 080310013 Denver - NJH - 14th Ave. & Albion St. CO #coincidences 10-30 and Corr > 0.5 0.84 040134010 Dysart AZ 0.72 120111002 DAVIE FL 0.69 060070002 Chico - Manzanita CA 0.59 090011123 Danbury CT 0.59 000040801 CANTERBURY NB Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 26.50 040191034 Coachline AZ 19.00 060650012 Banning - South Hathaway Street CA 18.40 040138005 Estrella AZ 17.00 040139998 Vehicle Emissions Laboratory AZ 13.90 060831008 Santa Maria - Broadway CA 12.80 061111004 Ojai - Ojai Ave. CA 12.60 060832004 Lompoc H Street CA 10.30 040191032 Rose Elementary AZ 10.20 040139812 Durango AZ 10.10 040191030 Green Valley AZ 9.70 000020401 SOUTHAMPTON PE 8.70 060670012 Folsom CA 8.30 060271023 Bishop Paiute Tribe-CA CA 7.60 060010011 Oakland West CA 6.60 060953002 Vacaville CA 6.60 060811001 Redwood City CA 6.20 000010301 Cornerbrook NF 5.50 060550003 Napa - Jefferson St CA 5.40 060850005 San Jose - Jackson St. CA 5.40 060410003 Point Reyes CA 5.20 060959999 Rio Vista CA 5.00 060731010 San Diego - Beardsley Street CA 4.50 000065001 Barrie ON 4.00 060731008 Camp Pendleton CA 3.50 000065301 Port Stanley ON 3.40 080350004 Chatfield Park - 11500 N. Roxborough Par CO 3.30 000061502 Kitchener ON 3.10 080130003 Longmont CO 2.90 061110007 Thousand Oaks - Moorpark Road CA 2.90 000061402 Brantford ON 2.90 000054401 Saint-Anicet QC 2.80 060750005 San Francisco - Arkansas Street CA 2.80 000065801 Chatham ON 2.60 090110124 Groton Fort Griswold CT 2.60 000020301 WELLINGTON PE 2.40 000062501 Tiverton ON 2.30 081230006 Greeley Hospital CO 2.30 000060903 London ON 2.10 080010006 Commerce City - 7101 Birch St. CO 2.00 090050004 Thomaston CT 2.00 080131001 Boulder - CU - 2102 Athens St. CO 2.00 060570005 Grass Valley CA 1.90 000060204 Windsor Downtown ON 1.80 120310077 Sheffield Elementary School FL 1.60 000061302 St. Catharines ON 1.50 061112002 Simi Valley - Cochran Street CA 1.50 061110009 Piru - Pacific CA 1.50 000063701 Grand Bend ON 1.30 000061201 Cornwall ON 1.00 000040901 ST ANDREWS NB 0.90 060250006 Calexico - East CA 0.80 080410017 Colorado College CO 0.80 060590007 Anaheim CA 0.70 060250005 Calexico - Ethel Street CA 0.70 000061104 Peterborough ON 0.60 060950004 Vallejo - 304 Tuolumne Street CA 0.50 120310100 Mayo Clinic FL #coincidences 10-30 and Corr > 0.5 37.10 000010401 Mount Pearl NF 27.40 040134010 Dysart AZ 14.60 040130019 West Phoenix AZ 14.50 000030310 SYDNEY NS 6.70 060010007 Livermore - Rincon CA 6.00 000060424 Toronto Downtown ON 4.90 000052301 Saint-Faustin QC 4.20 060070002 Chico - Manzanita CA 2.60 000040801 CANTERBURY NB 2.00 000040209 CASTLE ST. SAINT JO NB Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 14.70 040191034 Coachline AZ 12.50 040138005 Estrella AZ 11.70 040139998 Vehicle Emissions Laboratory AZ 10.70 060832004 Lompoc H Street CA 10.40 061111004 Ojai - Ojai Ave. CA 10.10 060831008 Santa Maria - Broadway CA 8.30 060650012 Banning - South Hathaway Street CA 8.20 060830011 Santa Barbara CA 7.70 040191032 Rose Elementary AZ 7.70 040191030 Green Valley AZ 7.60 040139812 Durango AZ 6.20 000020401 SOUTHAMPTON PE 6.00 060670010 Sacramento - T Street CA 5.80 060670012 Folsom CA 5.70 060670006 Sacramento - Del Paso Manor CA 5.30 060950004 Vallejo - 304 Tuolumne Street CA 5.30 060850005 San Jose - Jackson St. CA 5.10 060811001 Redwood City CA 5.00 061131003 Woodland CA 4.80 060610006 Roseville - N.Sunrise/Douglas CA 4.70 060731010 San Diego - Beardsley Street CA 4.60 060010011 Oakland West CA 4.50 060959999 Rio Vista CA 4.40 060670011 Elk Grove CA 4.30 060550003 Napa - Jefferson St CA 4.30 060410003 Point Reyes CA 4.00 060271023 Bishop Paiute Tribe-CA CA 3.30 080770017 Grand Junction - Powell Building CO 3.30 060953002 Vacaville CA 3.30 040191113 Geronimo AZ 3.20 080131001 Boulder - CU - 2102 Athens St. CO 2.90 080130003 Longmont CO 2.90 061110007 Thousand Oaks - Moorpark Road CA 2.80 060570005 Grass Valley CA 2.70 000010301 Cornerbrook NF 2.60 000065301 Port Stanley ON 2.50 080350004 Chatfield Park - 11500 N. Roxborough Par CO 2.30 120310077 Sheffield Elementary School FL 2.30 081230006 Greeley Hospital CO 2.30 000065801 Chatham ON 2.30 000060903 London ON 2.10 061112002 Simi Valley - Cochran Street CA 2.00 060250005 Calexico - Ethel Street CA 1.90 060731008 Camp Pendleton CA 1.90 060250006 Calexico - East CA 1.90 000062501 Tiverton ON 1.70 061110009 Piru - Pacific CA 1.70 060571001 Truckee BAM CA 1.70 000060204 Windsor Downtown ON 1.50 000065001 Barrie ON 1.50 000061502 Kitchener ON 1.50 000061201 Cornwall ON 1.40 080010006 Commerce City - 7101 Birch St. CO 1.40 000061302 St. Catharines ON 1.30 120310098 Mandarin FL 1.30 000054401 Saint-Anicet QC 1.20 000063701 Grand Bend ON 1.10 061113001 El Rio - Rio Mesa School #2 CA 1.10 000051501 Zéphirin QC 1.00 080410017 Colorado College CO 1.00 061070009 Sequoia/Kings Canyon - Ash Mountain CA 1.00 000061402 Brantford ON 0.80 080310013 Denver - NJH - 14th Ave. & Albion St. CO 0.70 061072002 Visalia - N. Church Street CA 0.70 060750005 San Francisco - Arkansas Street CA 0.60 120310100 Mayo Clinic FL 0.50 060210002 Willows - E. Laurel Street CA 0.50 000061004 Sarnia ON 0.50 000020301 WELLINGTON PE #coincidences 10-30 and Corr > 0.5 22.20 000010401 Mount Pearl NF 16.10 040134010 Dysart AZ 9.60 040130019 West Phoenix AZ 7.50 000030310 SYDNEY NS 6.10 060010007 Livermore - Rincon CA 2.50 100032004 MLK DE 2.00 000060424 Toronto Downtown ON 1.90 060070002 Chico - Manzanita CA 1.90 000052301 Saint-Faustin QC 0.70 000040302 MONCTON NB 0.70 000040209 CASTLE ST. SAINT JO NB 0.50 000040103 FREDERICTON NB Mean observed daytime surface PM2.5 (6-hourly) #coincidences >30 and Corr > 0.5 701.50 061130004 Davis CA 222.90 061070009 Sequoia/Kings Canyon - Ash Mountain CA 108.30 060431001 Yosemite Village - Visitor Center CA 106.90 010331002 MSHOALS AL 93.70 060190008 Fresno - 1st Street CA 73.80 060670006 Sacramento - Del Paso Manor CA 69.90 060890007 Anderson CA 61.50 060290014 Bakersfield - 5558 California Ave CA 50.40 060798001 Atascadero CA 46.20 060571001 Truckee BAM CA 40.80 060792004 Mesa 2 /Nipomo CA 39.60 060670011 Elk Grove CA 38.40 060670010 Sacramento - T Street CA 38.40 060639901 Quincy BAM CA 36.90 000054501 L'Assomption QC 35.90 060610006 Roseville - N.Sunrise/Douglas CA 34.90 060830011 Santa Barbara CA 34.10 061131003 Woodland CA 32.30 040191113 Geronimo AZ 30.30 061010003 Yuba City CA 26.00 060111002 Colusa - Sunrise Blvd. CA 25.70 120730012 Tallahassee Community College FL 24.50 060711004 Upland CA 23.20 061113001 El Rio - Rio Mesa School #2 CA 22.70 060658001 Riverside - Rubidoux CA 21.50 120470015 White Springs FL 21.50 060371002 Burbank - W. Palm Ave CA 20.40 060650012 Banning - South Hathaway Street CA 19.70 060710005 Lake Gregory - Crestline CA 19.20 060371103 Los Angeles - N. Main Street CA 18.50 120230002 Lake City FL 17.80 060730003 El Cajon - Redwood Ave CA 17.70 060731006 Alpine CA 17.60 060370016 Glendora - Laurel CA 16.90 060731002 Escondido CA 16.90 060310004 Corcoran CA 16.80 010731010 LEEDS AL 16.70 010735002 PINSON AL 16.30 080310002 Denver - CAMP - 2105 Broadway CO 15.90 060659001 Lake Elsinore - W. Flint Street CA 15.80 010732003 WYLAM AL 15.70 120590004 Bonifay FL 15.60 010730023 NO. BHAM AL 15.50 090032006 East Hartford - High Street CT 15.40 011011002 MONTG AL 15.20 120573002 SYDNEY FL 14.90 060590007 Anaheim CA 14.90 010970003 CHICK. AL 14.60 000060512 Hamilton Downtown ON 14.50 060950004 Vallejo - 304 Tuolumne Street CA 14.40 090090027 New Haven - Criscuolo Park CT 14.30 120570030 PCEIA3 FL 14.20 061112002 Simi Valley - Cochran Street CA 14.20 061110009 Piru - Pacific CA 14.20 060731010 San Diego - Beardsley Street CA 14.00 010731005 MCADORY AL 13.90 010732006 HOOVER AL 13.80 120571065 gandy FL 13.60 010735003 CORNER AL 13.40 120050006 St. Andrews Park FL 13.30 000041302 BATHURST NB 13.20 051190007 PARR AR 13.00 051191008 ADEQ-DSR AR 13.00 011190002 GASTON AL 12.90 120330004 Ellyson Industrial Park FL 12.90 061110007 Thousand Oaks - Moorpark Road CA 12.80 050350005 MARION AR 12.50 040139812 Durango AZ 12.40 060250005 Calexico - Ethel Street CA 12.30 090092123 Waterbury CT 12.30 060250006 Calexico - East CA 12.10 120013011 Payne's Prarie FL 12.00 120710005 Winkler Pump Station FL 12.00 060731008 Camp Pendleton CA 12.00 060072001 Paradise - Birch Street CA 11.70 080310025 Denver Animal Shelter - 678 S. Jason St. CO 11.70 051390006 El Dorado AR 11.70 010731009 PROVIDENCE AL 11.40 120210004 Laurel Oaks Elementary FL 11.40 060750005 San Francisco - Arkansas Street CA 11.30 080770017 Grand Junction - Powell Building CO 10.50 061072002 Visalia - N. Church Street CA 10.40 060990005 Modesto - 14th Street CA 10.30 120090011 Fay Park FL 10.30 060850005 San Jose - Jackson St. CA 10.10 090110124 Groton Fort Griswold CT 9.90 000061004 Sarnia ON 9.70 000040207 SAINT JOHN WEST NB 9.60 060831008 Santa Maria - Broadway CA 9.50 060074001 Gridley CA 9.40 051430005 SPRNGDLE AR 9.20 120090007 Melbourne FL 9.20 080310013 Denver - NJH - 14th Ave. & Albion St. CO 9.20 000050801 Ursulines QC 9.10 000054703 Bécancour (Aréna) QC 9.00 061111004 Ojai - Ojai Ave. CA 9.00 060959999 Rio Vista CA 9.00 060832004 Lompoc H Street CA 9.00 000061302 St. Catharines ON 8.90 060410003 Point Reyes CA 8.70 120310098 Mandarin FL 8.50 000060709 Sault Ste Marie ON 8.50 000010301 Cornerbrook NF 8.40 120310100 Mayo Clinic FL 8.20 060010011 Oakland West CA 8.20 000061402 Brantford ON 8.10 090050004 Thomaston CT 8.10 060550003 Napa - Jefferson St CA 8.10 060210002 Willows - E. Laurel Street CA 7.90 120310077 Sheffield Elementary School FL 7.80 000090402 Medicine Hat - Crescent Hts AB 7.70 060811001 Redwood City CA 7.60 060953002 Vacaville CA 7.60 000091101 Elk Island AB 7.60 000040203 FOREST HILLS NB 7.50 000061502 Kitchener ON 7.30 080410017 Colorado College CO 7.20 000060204 Windsor Downtown ON 7.10 000051501 Zéphirin QC 7.00 000061201 Cornwall ON 6.90 040139998 Vehicle Emissions Laboratory AZ 6.90 000065401 Belleville ON 6.80 000065001 Barrie ON 6.80 000060903 London ON 6.70 000065701 Morrisburg ON 6.40 000060303 Kingston ON 6.30 080010006 Commerce City - 7101 Birch St. CO 6.30 040191030 Green Valley AZ 6.30 000065801 Chatham ON 6.30 000065201 Parry Sound ON 6.30 000063701 Grand Bend ON 6.20 040191034 Coachline AZ 6.10 081230006 Greeley Hospital CO 6.10 040191032 Rose Elementary AZ 6.10 000060104 Ottawa ON 6.10 000054401 Saint-Anicet QC 6.00 080131001 Boulder - CU - 2102 Athens St. CO 5.80 000060609 Sudbury ON 5.70 060570005 Grass Valley CA 5.60 000065301 Port Stanley ON 5.50 060670012 Folsom CA 5.50 040138005 Estrella AZ 5.50 000063301 Dorset ON 5.50 000061104 Peterborough ON 5.40 060271023 Bishop Paiute Tribe-CA CA 5.30 080350004 Chatfield Park - 11500 N. Roxborough Par CO 5.30 000020301 WELLINGTON PE 5.10 000062501 Tiverton ON 5.10 000062001 North Bay ON 4.70 080130003 Longmont CO 4.40 000040901 ST ANDREWS NB 2.70 000020401 SOUTHAMPTON PE #coincidences 10-30 and Corr > 0.5 84.60 000040103 FREDERICTON NB 21.00 090050005 Cornwall CT 13.70 120111002 DAVIE FL 12.60 100032004 MLK DE 11.90 090011123 Danbury CT 9.80 040130019 West Phoenix AZ 8.30 060010007 Livermore - Rincon CA 7.50 000100059 Grand Forks City Hall BC 6.00 000030310 SYDNEY NS 5.80 000060424 Toronto Downtown ON 5.80 000040209 CASTLE ST. SAINT JO NB 5.70 060070002 Chico - Manzanita CA 5.60 000010401 Mount Pearl NF 5.20 040134010 Dysart AZ 4.90 000052301 Saint-Faustin QC 4.60 000040302 MONCTON NB 2.80 000040801 CANTERBURY NB Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 #coincidences and Corr > 0.5 25.70 000030310 SYDNEY NS 17.30 040191034 Coachline AZ 16.40 040139998 Vehicle Emissions Laboratory AZ 16.40 040139812 Durango AZ 16.40 040138005 Estrella AZ 16.40 040134010 Dysart AZ 16.40 040130019 West Phoenix AZ 16.40 000010301 Cornerbrook NF 14.60 000010401 Mount Pearl NF 13.10 061113001 El Rio - Rio Mesa School #2 CA 13.10 061111004 Ojai - Ojai Ave. CA 13.10 060832004 Lompoc H Street CA 13.10 060831008 Santa Maria - Broadway CA 13.10 060830011 Santa Barbara CA 13.00 040191113 Geronimo AZ 13.00 040191032 Rose Elementary AZ 13.00 040191030 Green Valley AZ 12.80 061131003 Woodland CA 12.80 061130004 Davis CA 12.80 060959999 Rio Vista CA 12.80 060953002 Vacaville CA 12.80 060950004 Vallejo - 304 Tuolumne Street CA 12.80 060850005 San Jose - Jackson St. CA 12.80 060811001 Redwood City CA 12.80 060750005 San Francisco - Arkansas Street CA 12.80 060670012 Folsom CA 12.80 060670011 Elk Grove CA 12.80 060670010 Sacramento - T Street CA 12.80 060670006 Sacramento - Del Paso Manor CA 12.80 060610006 Roseville - N.Sunrise/Douglas CA 12.80 060550003 Napa - Jefferson St CA 12.80 060410003 Point Reyes CA 12.80 060010011 Oakland West CA 12.80 060010007 Livermore - Rincon CA 12.00 060731010 San Diego - Beardsley Street CA 11.70 000063701 Grand Bend ON 11.70 000062501 Tiverton ON 11.70 000030501 KEJIMKUJIK NATIONAL NS 11.40 000020401 SOUTHAMPTON PE 10.70 100032004 MLK DE 10.50 090092123 Waterbury CT 10.50 090050005 Cornwall CT 10.50 090050004 Thomaston CT 10.50 090011123 Danbury CT 10.50 061010003 Yuba City CA 10.50 060890007 Anderson CA 10.50 060570005 Grass Valley CA 10.50 060210002 Willows - E. Laurel Street CA 10.50 060111002 Colusa - Sunrise Blvd. CA 10.50 060074001 Gridley CA 10.50 060072001 Paradise - Birch Street CA 10.50 060070002 Chico - Manzanita CA 10.40 000060204 Windsor Downtown ON 9.70 000100055 Langford Lakewood Elementary School BC 9.70 000100021 Victoria Topaz BC 9.60 090110124 Groton Fort Griswold CT 9.60 090090027 New Haven - Criscuolo Park CT 9.60 090032006 East Hartford - High Street CT 8.50 081230006 Greeley Hospital CO 8.50 080310025 Denver Animal Shelter - 678 S. Jason St. CO 8.50 080310013 Denver - NJH - 14th Ave. & Albion St. CO 8.50 080310002 Denver - CAMP - 2105 Broadway CO 8.50 080010006 Commerce City - 7101 Birch St. CO 8.40 080410017 Colorado College CO 8.30 080350004 Chatfield Park - 11500 N. Roxborough Par CO 8.30 080131001 Boulder - CU - 2102 Athens St. CO 8.30 080130003 Longmont CO 7.70 000100058 Quadra Island Cape M BC 7.40 000100031 Nanaimo Labieux Road BC 7.30 080770017 Grand Junction - Powell Building CO 7.30 080450007 Rifle Particulate CO 7.20 061112002 Simi Valley - Cochran Street CA 7.20 061110009 Piru - Pacific CA 7.20 061110007 Thousand Oaks - Moorpark Road CA 7.20 060731008 Camp Pendleton CA 7.20 060731002 Escondido CA 7.20 060711004 Upland CA 7.20 060710005 Lake Gregory - Crestline CA 7.20 060659001 Lake Elsinore - W. Flint Street CA 7.20 060658001 Riverside - Rubidoux CA 7.20 060639901 Quincy BAM CA 7.20 060590007 Anaheim CA 7.20 060571001 Truckee BAM CA 7.20 060371103 Los Angeles - N. Main Street CA 7.20 060371002 Burbank - W. Palm Ave CA 7.20 060370016 Glendora - Laurel CA 7.10 000065001 Barrie ON 7.10 000061502 Kitchener ON 7.10 000061402 Brantford ON 7.10 000061302 St. Catharines ON 7.10 000060512 Hamilton Downtown ON 7.10 000060424 Toronto Downtown ON 7.00 000111301 Langley BC 7.00 000111101 Chilliwack BC 7.00 000110119 Burnaby South BC 7.00 000100033 Whistler Meadow Park BC 6.90 120710005 Winkler Pump Station FL 6.90 120210004 Laurel Oaks Elementary FL 6.80 060731006 Alpine CA 6.80 060730003 El Cajon - Redwood Ave CA 6.80 060250006 Calexico - East CA 6.80 060250005 Calexico - Ethel Street CA 6.60 000070203 Brandon MB 6.40 000070301 Flin Flon MB 6.40 000065801 Chatham ON 6.40 000065301 Port Stanley ON 6.40 000061004 Sarnia ON 6.40 000060903 London ON 6.30 120330004 Ellyson Industrial Park FL 6.30 010970003 CHICK. AL 6.30 000080110 Regina SK 5.90 120590004 Bonifay FL 5.90 120050006 St. Andrews Park FL 5.90 061072002 Visalia - N. Church Street CA 5.90 060798001 Atascadero CA 5.90 060792004 Mesa 2 /Nipomo CA 5.90 060310004 Corcoran CA 5.90 060290014 Bakersfield - 5558 California Ave CA 5.90 060190008 Fresno - 1st Street CA 5.80 000065201 Parry Sound ON 5.80 000062001 North Bay ON 5.80 000060609 Sudbury ON 5.60 060990005 Modesto - 14th Street CA 5.60 060431001 Yosemite Village - Visitor Center CA 5.50 060650012 Banning - South Hathaway Street CA 5.10 120090011 Fay Park FL 5.10 120090007 Melbourne FL 5.00 120470015 White Springs FL 5.00 120310100 Mayo Clinic FL 5.00 120310098 Mandarin FL 5.00 120310077 Sheffield Elementary School FL 5.00 120230002 Lake City FL 5.00 120013011 Payne's Prarie FL 4.80 000070118 Winnipeg_Scotia MB 4.50 061070009 Sequoia/Kings Canyon - Ash Mountain CA 4.50 000061201 Cornwall ON 4.50 000054501 L'Assomption QC 4.50 000054401 Saint-Anicet QC 4.50 000052301 Saint-Faustin QC 4.50 000052201 Brossard QC 4.50 000050131 Hochelaga QC 4.50 000050129 Rivière-des-Prairies QC 4.50 000050128 Aéroport de Montréal 1 QC 4.50 000050126 Sainte-Anne-de-Bellevue QC 4.50 000050121 PARC OCÉANIE QC 4.50 000050113 Chomedey QC 4.50 000050110 Parc Pilon QC 4.50 000050109 Duncan QC 4.50 000050105 Drummond QC 4.40 120111002 DAVIE FL 4.40 000063301 Dorset ON 4.20 120573002 SYDNEY FL 4.20 120571065 gandy FL 4.20 120570030 PCEIA3 FL 4.20 000100029 Smithers St Josephs BC 4.20 000100023 Terrace BC Access Centre BC 4.20 000100016 Kitimat Rail BC 4.20 000100012 Kitimat Riverlodge BC 4.20 000060709 Sault Ste Marie ON 4.20 000040302 MONCTON NB 4.20 000030701 AYLESFORD MOUNTAIN NS 4.20 000020301 WELLINGTON PE 4.20 000020104 CHARLOTTETOWN PE 4.10 000040209 CASTLE ST. SAINT JO NB 4.10 000040207 SAINT JOHN WEST NB 4.10 000040203 FOREST HILLS NB 4.10 000040103 FREDERICTON NB 4.00 011030011 DECATUR AL 4.00 010890014 Huntsville Old Airport AL 4.00 010735003 CORNER AL 4.00 010735002 PINSON AL 4.00 010732006 HOOVER AL 4.00 010732003 WYLAM AL 4.00 010731010 LEEDS AL 4.00 010730023 NO. BHAM AL 4.00 000065701 Morrisburg ON 4.00 000065401 Belleville ON 4.00 000061104 Peterborough ON 4.00 000060303 Kingston ON 4.00 000055201 Lemieux QC 4.00 000054801 Stukely QC 4.00 000054703 Bécancour (Aréna) QC 4.00 000053801 Tingwick QC 4.00 000053301 Deschambault QC 4.00 000052001 Charette QC 4.00 000051501 Zéphirin QC 4.00 000051201 Frigon QC 4.00 000050801 Ursulines QC 4.00 000050310 St-Charles Garnier QC 4.00 000050308 Des Sables QC 3.80 000060104 Ottawa ON 3.70 060271023 Bishop Paiute Tribe-CA CA 3.60 000091101 Elk Island AB 3.20 000100049 Osoyoos Canada Customs BC 3.20 000100007 Kamloops Brocklehurst BC 3.20 000100005 Kelowna College BC 3.10 120730012 Tallahassee Community College FL 3.10 000040901 ST ANDREWS NB 3.10 000040801 CANTERBURY NB 3.00 000053701 HILAIRE QC 2.90 051390006 El Dorado AR 2.90 051191008 ADEQ-DSR AR 2.90 051190007 PARR AR 2.90 011011002 MONTG AL 2.90 000100040 Williams Lake CRD School BC 2.90 000100036 Quesnel West Correlieu School BC 2.90 000100009 Quesnel Maple Drive BC 2.90 000100006 Williams Lake Columneetza School BC 2.80 051430005 SPRNGDLE AR 2.80 000053201 PÉMONCA QC 2.80 000050504 Université Chicoutimi QC 2.50 011190002 GASTON AL 2.10 000090402 Medicine Hat - Crescent Hts AB 1.90 000100059 Grand Forks City Hall BC 1.90 000100022 Houston Firehall BC 1.90 000100014 PRG Gladstone School BC 1.90 000100004 PRG Plaza 400 BC 1.80 010731009 PROVIDENCE AL 1.80 010731005 MCADORY AL 1.80 010331002 MSHOALS AL 1.50 000041302 BATHURST NB 1.00 050350005 MARION AR 0.90 000100035 Golden Hospital BC AIRNow 18Z yesterday 1-hr surface PM2.5 AIRNow yesterday maximum 1-hr surface PM2.5 Yesterday observed cloudiness (MODIS COT)