Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 0.75 000054501 L'Assomption QC 0.74 000061201 Cornwall ON 0.71 000060104 Ottawa ON 0.71 000052301 Saint-Faustin QC 0.65 000065701 Morrisburg ON 0.62 000090218 Calgary East AB 0.57 010732003 WYLAM AL 0.55 000090601 Fort Saskatchewan AB 0.53 000061104 Peterborough ON 0.52 000090130 Edmonton Central AB 0.52 000065801 Chatham ON 0.52 000060303 Kingston ON 0.50 000060512 Hamilton Downtown ON 0.50 000050801 Ursulines QC #coincidences 10-30 and Corr > 0.5 Correlation between RAQMS!dG!n and AIRNow diurn-avg surface PM2.5 #coincidences >30 and Corr > 0.5 0.96 000061201 Cornwall ON 0.85 000052301 Saint-Faustin QC 0.84 000054501 L'Assomption QC 0.79 000090601 Fort Saskatchewan AB 0.78 000065701 Morrisburg ON 0.78 000061104 Peterborough ON 0.76 000090218 Calgary East AB 0.74 000065401 Belleville ON 0.73 000090130 Edmonton Central AB 0.73 000065801 Chatham ON 0.72 000090121 Edmonton East AB 0.70 000060303 Kingston ON 0.65 000061302 St. Catharines ON 0.64 000065301 Port Stanley ON 0.63 000094301 Cold Lake South AB 0.63 000090120 Edmonton South AB 0.62 060675003 Sloughhouse CA 0.61 000061004 Sarnia ON 0.60 051430005 SPRNGDLE AR 0.59 000090222 Calgary Northwest AB 0.59 000061402 Brantford ON 0.58 000054703 Bécancour (Aréna) QC 0.58 000020401 SOUTHAMPTON PE 0.57 040191030 Green Valley AZ 0.57 000050801 Ursulines QC 0.52 050350005 MARION AR 0.50 000090402 Medicine Hat - Crescent Hts AB 0.50 000061502 Kitchener ON #coincidences 10-30 and Corr > 0.5 0.91 000060104 Ottawa ON 0.90 060690002 Unknown CA 0.85 060798001 Atascadero CA 0.75 000060512 Hamilton Downtown ON Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 51.00 000010401 Mount Pearl NF 37.70 000030310 SYDNEY NS 18.10 000020401 SOUTHAMPTON PE 16.70 000040302 MONCTON NB 16.70 000020301 WELLINGTON PE 14.20 000020104 CHARLOTTETOWN PE 9.90 060650012 Banning - South Hathaway Street CA 8.30 000041302 BATHURST NB 6.10 061113001 El Rio - Rio Mesa School #2 CA 5.50 060832004 Lompoc H Street CA 4.00 061111004 Ojai - Ojai Ave. CA 4.00 060831008 Santa Maria - Broadway CA 3.50 000065001 Barrie ON 2.90 000060424 Toronto Downtown ON 2.00 000065401 Belleville ON 2.00 000061402 Brantford ON 2.00 000061302 St. Catharines ON 1.60 000061104 Peterborough ON 1.60 000052301 Saint-Faustin QC 1.20 000040207 SAINT JOHN WEST NB 1.10 060830011 Santa Barbara CA 0.70 000061502 Kitchener ON #coincidences 10-30 and Corr > 0.5 6.30 060690002 Unknown CA 2.30 000040203 FOREST HILLS NB 1.20 040138005 Estrella AZ 0.90 000060512 Hamilton Downtown ON Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 35.10 000010401 Mount Pearl NF 26.20 000030310 SYDNEY NS 15.20 000020401 SOUTHAMPTON PE 8.50 000040302 MONCTON NB 7.80 000041302 BATHURST NB 7.40 000020301 WELLINGTON PE 6.30 000020104 CHARLOTTETOWN PE 5.50 061113001 El Rio - Rio Mesa School #2 CA 5.50 060870007 Unknown CA 5.40 060650012 Banning - South Hathaway Street CA 4.30 060832004 Lompoc H Street CA 3.60 060832011 GOLETA CA 3.00 000061201 Cornwall ON 2.90 061110007 Thousand Oaks - Moorpark Road CA 2.80 060831008 Santa Maria - Broadway CA 2.80 060530002 Unknown CA 2.70 000061302 St. Catharines ON 2.60 000061402 Brantford ON 2.60 000061104 Peterborough ON 2.50 000065001 Barrie ON 2.50 000061502 Kitchener ON 2.00 061111004 Ojai - Ojai Ave. CA 2.00 000060424 Toronto Downtown ON 2.00 000052301 Saint-Faustin QC 1.90 000065401 Belleville ON 1.80 040139998 Vehicle Emissions Laboratory AZ 1.60 060731002 Escondido CA 1.50 000040207 SAINT JOHN WEST NB 1.40 060830011 Santa Barbara CA 1.30 060659001 Lake Elsinore - W. Flint Street CA 1.30 040134010 Dysart AZ 1.20 000065701 Morrisburg ON 1.10 060850002 Gilory - 9th Street CA 1.00 000065301 Port Stanley ON 1.00 000040103 FREDERICTON NB 0.90 040191030 Green Valley AZ 0.80 060731010 San Diego - Beardsley Street CA 0.80 000040901 ST ANDREWS NB 0.50 000065801 Chatham ON #coincidences 10-30 and Corr > 0.5 2.60 000040203 FOREST HILLS NB 2.30 000060512 Hamilton Downtown ON 1.50 060690002 Unknown CA 1.40 000060609 Sudbury ON 0.70 060870003 Unknown CA 0.50 000060903 London ON Mean observed daytime surface PM2.5 (6-hourly) #coincidences >30 and Corr > 0.5 ****** 060410003 Point Reyes CA 231.10 061010003 Yuba City CA 142.90 060530002 Unknown CA 131.10 061130004 Davis CA 95.20 060870007 Unknown CA 95.10 060250005 Calexico - Ethel Street CA 83.90 060431001 Yosemite Village - Visitor Center CA 83.70 060610006 Roseville - N.Sunrise/Douglas CA 77.90 061070009 Sequoia/Kings Canyon - Ash Mountain CA 75.70 060670011 Elk Grove CA 70.70 060070002 Chico - Manzanita CA 59.00 010331002 MSHOALS AL 58.10 060290014 Bakersfield - 5558 California Ave CA 45.80 060190008 Fresno - 1st Street CA 43.60 060832011 GOLETA CA 39.90 060990005 Modesto - 14th Street CA 37.80 061072002 Visalia - N. Church Street CA 34.40 060670010 Sacramento - T Street CA 32.80 060771002 Stockton - Hazelton Street CA 29.30 040191030 Green Valley AZ 28.70 060639901 Quincy BAM CA 28.60 060074001 Gridley CA 28.60 000090120 Edmonton South AB 28.20 060371201 Reseda CA 27.50 000090130 Edmonton Central AB 27.30 000090121 Edmonton East AB 25.90 060731002 Escondido CA 24.60 060711004 Upland CA 23.90 060371002 Burbank - W. Palm Ave CA 23.70 080310013 Denver - NJH - 14th Ave. & Albion St. CO 23.00 060571001 Truckee BAM CA 22.90 000090302 Red Deer AB 22.80 060890007 Anderson CA 21.60 060371103 Los Angeles - N. Main Street CA 21.60 000054401 Saint-Anicet QC 20.80 069999921 EBAM12 - Sac T CA 19.80 060953002 Vacaville CA 19.80 060550003 Napa - Jefferson St CA 19.70 010970003 CHICK. AL 19.50 060651003 Riverside - Magnolia CA 19.50 000040801 CANTERBURY NB 19.40 061131003 Woodland CA 19.40 060374002 North Long Beach CA 19.00 000090222 Calgary Northwest AB 18.90 040139812 Durango AZ 18.20 000090218 Calgary East AB 18.10 040134003 South Phoenix AZ 18.00 060710005 Lake Gregory - Crestline CA 17.90 080310002 Denver - CAMP - 2105 Broadway CO 17.90 060410001 San Rafael CA 17.70 060731010 San Diego - Beardsley Street CA 17.60 000090601 Fort Saskatchewan AB 17.50 060970003 Santa Rosa - 5th Street CA 17.50 040191113 Geronimo AZ 17.40 060950004 Vallejo - 304 Tuolumne Street CA 17.40 060271023 Bishop Paiute Tribe-CA CA 17.30 060210002 Willows - E. Laurel Street CA 16.80 000054501 L'Assomption QC 15.90 060010007 Livermore - Rincon CA 15.80 080131001 Boulder - CU - 2102 Athens St. CO 15.80 060675003 Sloughhouse CA 15.40 060658001 Riverside - Rubidoux CA 15.40 060376012 Santa Clarita CA 15.30 040130019 West Phoenix AZ 15.20 060811001 Redwood City CA 14.90 010730023 NO. BHAM AL 14.80 010732003 WYLAM AL 14.30 000054703 Bécancour (Aréna) QC 14.20 061112002 Simi Valley - Cochran Street CA 13.90 040191034 Coachline AZ 13.80 060650012 Banning - South Hathaway Street CA 13.70 060731008 Camp Pendleton CA 13.40 051191008 ADEQ-DSR AR 13.30 011011002 MONTG AL 13.10 051190007 PARR AR 13.00 010732006 HOOVER AL 12.90 060959999 Rio Vista CA 12.80 080410017 Colorado College CO 12.80 061110009 Piru - Pacific CA 12.80 060850005 San Jose - Jackson St. CA 12.80 000050801 Ursulines QC 12.40 040191032 Rose Elementary AZ 12.30 060830011 Santa Barbara CA 12.30 051390006 El Dorado AR 12.20 010731010 LEEDS AL 12.10 040139998 Vehicle Emissions Laboratory AZ 11.90 000090402 Medicine Hat - Crescent Hts AB 11.80 060010011 Oakland West CA 11.70 051430005 SPRNGDLE AR 11.50 010731005 MCADORY AL 11.30 080010006 Commerce City - 7101 Birch St. CO 10.80 061110007 Thousand Oaks - Moorpark Road CA 10.80 050350005 MARION AR 10.70 061111004 Ojai - Ojai Ave. CA 10.60 060750005 San Francisco - Arkansas Street CA 10.60 010731009 PROVIDENCE AL 10.60 000090502 Lethbridge AB 10.40 060850002 Gilory - 9th Street CA 10.40 060659001 Lake Elsinore - W. Flint Street CA 10.40 010735003 CORNER AL 10.30 010735002 PINSON AL 10.00 040134010 Dysart AZ 9.60 060670012 Folsom CA 9.50 000094301 Cold Lake South AB 9.50 000040103 FREDERICTON NB 9.20 000061004 Sarnia ON 9.20 000030310 SYDNEY NS 9.10 000060204 Windsor Downtown ON 9.00 060090001 San Andreas CA 8.90 000020104 CHARLOTTETOWN PE 8.90 000010401 Mount Pearl NF 8.80 061113001 El Rio - Rio Mesa School #2 CA 8.50 000061502 Kitchener ON 8.30 080130003 Longmont CO 8.30 000041302 BATHURST NB 8.20 000061201 Cornwall ON 7.90 000065801 Chatham ON 7.80 000060303 Kingston ON 7.70 000065301 Port Stanley ON 7.40 000061302 St. Catharines ON 7.30 000061402 Brantford ON 6.80 000065701 Morrisburg ON 6.70 000040302 MONCTON NB 6.70 000040207 SAINT JOHN WEST NB 6.60 060831008 Santa Maria - Broadway CA 6.60 000052301 Saint-Faustin QC 6.50 000060424 Toronto Downtown ON 6.50 000020301 WELLINGTON PE 6.40 060832004 Lompoc H Street CA 6.00 000065401 Belleville ON 5.90 000065001 Barrie ON 5.90 000061104 Peterborough ON 5.20 060570005 Grass Valley CA 5.10 000040901 ST ANDREWS NB 4.60 000091101 Elk Island AB 4.30 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 4.00 000020401 SOUTHAMPTON PE #coincidences 10-30 and Corr > 0.5 69.80 060731006 Alpine CA 54.50 060870003 Unknown CA 53.50 060310004 Corcoran CA 26.90 060670006 Sacramento - Del Paso Manor CA 16.90 060370016 Glendora - Laurel CA 16.50 060012004 Berkeley CA 16.10 060590007 Anaheim CA 15.00 000051501 Zéphirin QC 13.90 060679991 Rancho Seco CA 13.40 060798001 Atascadero CA 12.70 080770017 Grand Junction - Powell Building CO 10.10 040138005 Estrella AZ 9.40 000060104 Ottawa ON 8.70 000060903 London ON 8.20 000063701 Grand Bend ON 7.60 000060512 Hamilton Downtown ON 7.50 060690002 Unknown CA 7.20 080350004 Chatfield Park - 11500 N. Roxborough Par CO 7.00 000091901 Caroline AB 6.80 000063301 Dorset ON 6.70 000065201 Parry Sound ON 6.60 000062001 North Bay ON 6.40 000040203 FOREST HILLS NB 6.10 000062501 Tiverton ON 5.20 060792004 Mesa 2 /Nipomo CA 5.00 000060609 Sudbury ON 4.70 000060709 Sault Ste Marie ON Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 AIRNow 18Z yesterday 1-hr surface PM2.5 AIRNow yesterday maximum 1-hr surface PM2.5 Yesterday observed cloudiness (MODIS COT)