Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 0.86 000062001 North Bay ON 0.84 010735002 PINSON AL 0.84 000090130 Edmonton Central AB 0.79 000061104 Peterborough ON 0.79 000060104 Ottawa ON 0.78 010731005 MCADORY AL 0.76 000065201 Parry Sound ON 0.76 000063301 Dorset ON 0.75 060731002 Escondido CA 0.74 000065001 Barrie ON 0.70 000090120 Edmonton South AB 0.67 060658001 Riverside - Rubidoux CA 0.67 010735003 CORNER AL 0.65 051430005 SPRNGDLE AR 0.65 010731009 PROVIDENCE AL 0.65 000090121 Edmonton East AB 0.65 000054501 L'Assomption QC 0.64 060659001 Lake Elsinore - W. Flint Street CA 0.63 000054401 Saint-Anicet QC 0.62 000061201 Cornwall ON 0.58 000060303 Kingston ON 0.57 080350004 Chatfield Park - 11500 N. Roxborough Par CO 0.56 000065401 Belleville ON 0.54 050350005 MARION AR 0.53 000052301 Saint-Faustin QC 0.52 060792004 Mesa 2 /Nipomo CA 0.51 061110007 Thousand Oaks - Moorpark Road CA 0.51 060074001 Gridley CA 0.50 080310013 Denver - NJH - 14th Ave. & Albion St. CO 0.50 060850005 San Jose - Jackson St. CA Correlation between RAQMS!dG!n and AIRNow diurn-avg surface PM2.5 #coincidences 10-30 and Corr > 0.5 0.99 000090130 Edmonton Central AB 0.99 000090120 Edmonton South AB 0.97 000090121 Edmonton East AB 0.96 000090601 Fort Saskatchewan AB 0.95 000065001 Barrie ON 0.95 000062001 North Bay ON 0.95 000061104 Peterborough ON 0.92 000063301 Dorset ON 0.91 000065201 Parry Sound ON 0.89 060710005 Lake Gregory - Crestline CA 0.86 000040207 SAINT JOHN WEST NB 0.83 080010006 Commerce City - 7101 Birch St. CO 0.82 060658001 Riverside - Rubidoux CA 0.81 000054401 Saint-Anicet QC 0.78 000061201 Cornwall ON 0.78 000052301 Saint-Faustin QC 0.77 060376012 Santa Clarita CA 0.77 000054501 L'Assomption QC 0.76 000090218 Calgary East AB 0.76 000060303 Kingston ON 0.74 010731005 MCADORY AL 0.73 000060512 Hamilton Downtown ON 0.70 000065401 Belleville ON 0.70 000065301 Port Stanley ON 0.70 000060609 Sudbury ON 0.66 061110009 Piru - Pacific CA 0.66 060690002 Unknown CA 0.64 000062501 Tiverton ON 0.60 010732006 HOOVER AL 0.57 010731009 PROVIDENCE AL 0.55 060070002 Chico - Manzanita CA 0.55 000090302 Red Deer AB 0.50 061112002 Simi Valley - Cochran Street CA 0.50 060530002 Unknown CA Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 20.20 060650012 Banning - South Hathaway Street CA 20.20 000010401 Mount Pearl NF 13.30 060831008 Santa Maria - Broadway CA 11.40 060830011 Santa Barbara CA 7.20 060670006 Sacramento - Del Paso Manor CA 5.80 060570005 Grass Valley CA 4.90 060811001 Redwood City CA 4.00 060670012 Folsom CA 3.70 060970003 Santa Rosa - 5th Street CA 3.60 040191030 Green Valley AZ 2.30 000020301 WELLINGTON PE 1.90 000020104 CHARLOTTETOWN PE 1.60 040191113 Geronimo AZ 1.50 060950004 Vallejo - 304 Tuolumne Street CA 1.50 060410001 San Rafael CA 1.30 060010007 Livermore - Rincon CA 0.70 060953002 Vacaville CA Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 13.60 000010401 Mount Pearl NF 12.40 060690002 Unknown CA 11.90 060650012 Banning - South Hathaway Street CA 10.10 060530002 Unknown CA 8.60 060830011 Santa Barbara CA 7.60 060832011 GOLETA CA 7.50 060831008 Santa Maria - Broadway CA 5.30 060670012 Folsom CA 4.40 040191030 Green Valley AZ 4.10 060950004 Vallejo - 304 Tuolumne Street CA 3.40 060811001 Redwood City CA 3.30 060970003 Santa Rosa - 5th Street CA 2.80 060670006 Sacramento - Del Paso Manor CA 2.00 060550003 Napa - Jefferson St CA 1.90 040191113 Geronimo AZ 1.90 040191034 Coachline AZ 1.80 000020301 WELLINGTON PE 1.50 060010007 Livermore - Rincon CA 1.10 000020104 CHARLOTTETOWN PE 1.00 000052301 Saint-Faustin QC 0.60 061131003 Woodland CA 0.60 061110009 Piru - Pacific CA 0.60 060570005 Grass Valley CA 0.60 051390006 El Dorado AR Mean observed daytime surface PM2.5 (6-hourly) #coincidences 10-30 and Corr > 0.5 345.80 060771002 Stockton - Hazelton Street CA 336.00 060832011 GOLETA CA 293.30 060410003 Point Reyes CA 280.80 060639901 Quincy BAM CA 254.20 060530002 Unknown CA 178.70 060290014 Bakersfield - 5558 California Ave CA 141.00 040191034 Coachline AZ 125.80 060690002 Unknown CA 42.60 060250005 Calexico - Ethel Street CA 34.20 010730023 NO. BHAM AL 26.70 000090121 Edmonton East AB 26.00 060070002 Chico - Manzanita CA 25.10 000061004 Sarnia ON 24.00 060610006 Roseville - N.Sunrise/Douglas CA 22.70 000050801 Ursulines QC 21.80 061131003 Woodland CA 21.20 010970003 CHICK. AL 21.10 000054703 Bécancour (Aréna) QC 20.90 060890007 Anderson CA 20.30 000090302 Red Deer AB 20.10 010732003 WYLAM AL 19.80 000090120 Edmonton South AB 19.70 060310004 Corcoran CA 19.20 060550003 Napa - Jefferson St CA 18.90 000054501 L'Assomption QC 18.40 000090130 Edmonton Central AB 18.00 011011002 MONTG AL 17.70 000040801 CANTERBURY NB 17.00 060376012 Santa Clarita CA 16.90 010731010 LEEDS AL 16.80 060658001 Riverside - Rubidoux CA 16.20 000061402 Brantford ON 16.10 000060204 Windsor Downtown ON 16.00 000060303 Kingston ON 15.40 000061502 Kitchener ON 14.90 000060424 Toronto Downtown ON 14.40 000090601 Fort Saskatchewan AB 14.40 000060512 Hamilton Downtown ON 14.30 060711004 Upland CA 13.90 000054401 Saint-Anicet QC 13.80 010732006 HOOVER AL 13.40 060650012 Banning - South Hathaway Street CA 13.20 060571001 Truckee BAM CA 13.20 000063701 Grand Bend ON 13.00 000065001 Barrie ON 12.90 010735003 CORNER AL 12.80 040191113 Geronimo AZ 12.50 000065801 Chatham ON 12.50 000060903 London ON 12.40 000061302 St. Catharines ON 12.40 000061104 Peterborough ON 12.30 000052301 Saint-Faustin QC 12.20 060953002 Vacaville CA 12.10 000065301 Port Stanley ON 11.80 000065401 Belleville ON 11.60 010731005 MCADORY AL 11.50 060010007 Livermore - Rincon CA 11.40 060950004 Vallejo - 304 Tuolumne Street CA 11.40 000062501 Tiverton ON 11.30 060410001 San Rafael CA 10.90 000060709 Sault Ste Marie ON 10.80 040191030 Green Valley AZ 10.60 000065201 Parry Sound ON 10.50 061112002 Simi Valley - Cochran Street CA 10.40 010731009 PROVIDENCE AL 10.40 000040207 SAINT JOHN WEST NB 10.30 000063301 Dorset ON 10.20 060710005 Lake Gregory - Crestline CA 10.00 000090218 Calgary East AB 9.80 010331002 MSHOALS AL 9.80 000061201 Cornwall ON 9.70 060830011 Santa Barbara CA 9.60 061110009 Piru - Pacific CA 9.50 000062001 North Bay ON 9.30 080410017 Colorado College CO 9.20 060970003 Santa Rosa - 5th Street CA 9.20 051190007 PARR AR 9.20 000060609 Sudbury ON 9.00 051191008 ADEQ-DSR AR 8.90 060670012 Folsom CA 8.80 051390006 El Dorado AR 8.70 060090001 San Andreas CA 8.60 080010006 Commerce City - 7101 Birch St. CO 8.50 050350005 MARION AR 7.90 060811001 Redwood City CA 7.80 060831008 Santa Maria - Broadway CA 7.60 060271023 Bishop Paiute Tribe-CA CA 7.50 000010401 Mount Pearl NF 6.80 000020104 CHARLOTTETOWN PE 6.70 000094301 Cold Lake South AB 6.60 061070009 Sequoia/Kings Canyon - Ash Mountain CA 6.40 000020301 WELLINGTON PE 5.60 060670006 Sacramento - Del Paso Manor CA 3.70 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 2.70 060570005 Grass Valley CA Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 #coincidences and Corr > 0.5 41.50 000020401 SOUTHAMPTON PE 33.40 060250005 Calexico - Ethel Street CA 31.50 000030310 SYDNEY NS 20.20 000010401 Mount Pearl NF 19.90 000040302 MONCTON NB 19.90 000020301 WELLINGTON PE 19.90 000020104 CHARLOTTETOWN PE 19.00 060731010 San Diego - Beardsley Street CA 14.20 040191034 Coachline AZ 9.90 000041302 BATHURST NB 9.60 000040207 SAINT JOHN WEST NB 9.10 060650012 Banning - South Hathaway Street CA 7.90 061113001 El Rio - Rio Mesa School #2 CA 7.90 061111004 Ojai - Ojai Ave. CA 7.90 060832011 GOLETA CA 7.90 060832004 Lompoc H Street CA 7.90 060831008 Santa Maria - Broadway CA 7.90 060830011 Santa Barbara CA 7.00 069999921 EBAM12 - Sac T CA 7.00 061131003 Woodland CA 7.00 061130004 Davis CA 7.00 060970003 Santa Rosa - 5th Street CA 7.00 060959999 Rio Vista CA 7.00 060953002 Vacaville CA 7.00 060950004 Vallejo - 304 Tuolumne Street CA 7.00 060870003 Unknown CA 7.00 060850005 San Jose - Jackson St. CA 7.00 060811001 Redwood City CA 7.00 060771002 Stockton - Hazelton Street CA 7.00 060750005 San Francisco - Arkansas Street CA 7.00 060675003 Sloughhouse CA 7.00 060670012 Folsom CA 7.00 060670011 Elk Grove CA 7.00 060670010 Sacramento - T Street CA 7.00 060670006 Sacramento - Del Paso Manor CA 7.00 060610006 Roseville - N.Sunrise/Douglas CA 7.00 060550003 Napa - Jefferson St CA 7.00 060410003 Point Reyes CA 7.00 060410001 San Rafael CA 7.00 060012004 Berkeley CA 7.00 060010011 Oakland West CA 7.00 060010007 Livermore - Rincon CA 6.20 061112002 Simi Valley - Cochran Street CA 6.20 061110009 Piru - Pacific CA 6.20 061110007 Thousand Oaks - Moorpark Road CA 6.20 060731008 Camp Pendleton CA 6.20 060731002 Escondido CA 6.20 060711004 Upland CA 6.20 060710005 Lake Gregory - Crestline CA 6.20 060659001 Lake Elsinore - W. Flint Street CA 6.20 060658001 Riverside - Rubidoux CA 6.20 060651003 Riverside - Magnolia CA 6.20 060376012 Santa Clarita CA 6.20 060374002 North Long Beach CA 6.20 060371103 Los Angeles - N. Main Street CA 6.20 060371002 Burbank - W. Palm Ave CA 6.20 060370016 Glendora - Laurel CA 5.60 010970003 CHICK. AL 5.00 060870007 Unknown CA 5.00 060850002 Gilory - 9th Street CA 5.00 060690002 Unknown CA 5.00 060530002 Unknown CA 4.20 000040901 ST ANDREWS NB 4.20 000040801 CANTERBURY NB 3.90 000061201 Cornwall ON 3.90 000054501 L'Assomption QC 3.90 000054401 Saint-Anicet QC 3.90 000052301 Saint-Faustin QC 3.80 061010003 Yuba City CA 3.80 060890007 Anderson CA 3.80 060570005 Grass Valley CA 3.80 060210002 Willows - E. Laurel Street CA 3.80 060074001 Gridley CA 3.80 060070002 Chico - Manzanita CA 3.70 000065001 Barrie ON 3.70 000061502 Kitchener ON 3.70 000061402 Brantford ON 3.70 000061302 St. Catharines ON 3.70 000060512 Hamilton Downtown ON 3.70 000060424 Toronto Downtown ON 3.60 010735003 CORNER AL 3.60 010735002 PINSON AL 3.60 010732006 HOOVER AL 3.60 010732003 WYLAM AL 3.60 010731010 LEEDS AL 3.60 010730023 NO. BHAM AL 3.60 000065701 Morrisburg ON 3.60 000060303 Kingston ON 3.40 040191113 Geronimo AZ 3.40 040191032 Rose Elementary AZ 3.40 040191030 Green Valley AZ 3.20 011011002 MONTG AL 3.20 010731009 PROVIDENCE AL 3.20 010731005 MCADORY AL 3.20 010331002 MSHOALS AL 3.10 000065401 Belleville ON 3.10 000061104 Peterborough ON 3.00 050350005 MARION AR 3.00 000060204 Windsor Downtown ON 3.00 000054703 Bécancour (Aréna) QC 3.00 000051501 Zéphirin QC 3.00 000050801 Ursulines QC 2.90 000065801 Chatham ON 2.90 000065301 Port Stanley ON 2.90 000061004 Sarnia ON 2.90 000060903 London ON 2.70 051390006 El Dorado AR 2.70 051191008 ADEQ-DSR AR 2.70 051190007 PARR AR 2.70 000090302 Red Deer AB 2.70 000090222 Calgary Northwest AB 2.70 000090218 Calgary East AB 2.40 051430005 SPRNGDLE AR 2.40 040139998 Vehicle Emissions Laboratory AZ 2.40 040139812 Durango AZ 2.40 040138005 Estrella AZ 2.40 040134010 Dysart AZ 2.40 040134003 South Phoenix AZ 2.40 040130019 West Phoenix AZ 2.40 000090601 Fort Saskatchewan AB 2.40 000090130 Edmonton Central AB 2.40 000090121 Edmonton East AB 2.40 000090120 Edmonton South AB 2.30 060639901 Quincy BAM CA 2.30 060571001 Truckee BAM CA 2.30 000063301 Dorset ON 2.10 000090502 Lethbridge AB 2.10 000060104 Ottawa ON 2.00 000090402 Medicine Hat - Crescent Hts AB 1.90 061072002 Visalia - N. Church Street CA 1.90 060798001 Atascadero CA 1.90 060792004 Mesa 2 /Nipomo CA 1.90 060310004 Corcoran CA 1.90 060290014 Bakersfield - 5558 California Ave CA 1.90 060190008 Fresno - 1st Street CA 1.90 000065201 Parry Sound ON 1.90 000062001 North Bay ON 1.90 000060609 Sudbury ON 1.70 080770017 Grand Junction - Powell Building CO 1.70 000063701 Grand Bend ON 1.70 000062501 Tiverton ON 1.70 000060709 Sault Ste Marie ON 1.60 080310013 Denver - NJH - 14th Ave. & Albion St. CO 1.60 080310002 Denver - CAMP - 2105 Broadway CO 1.60 080010006 Commerce City - 7101 Birch St. CO 1.40 080350004 Chatfield Park - 11500 N. Roxborough Par CO 1.40 080131001 Boulder - CU - 2102 Athens St. CO 1.40 080130003 Longmont CO 1.30 061070009 Sequoia/Kings Canyon - Ash Mountain CA 1.30 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 1.30 000091101 Elk Island AB 1.20 060990005 Modesto - 14th Street CA 1.20 060431001 Yosemite Village - Visitor Center CA 1.20 060090001 San Andreas CA 1.10 080410017 Colorado College CO 1.00 000094301 Cold Lake South AB 0.50 060271023 Bishop Paiute Tribe-CA CA AIRNow 18Z yesterday 1-hr surface PM2.5 AIRNow yesterday maximum 1-hr surface PM2.5 Yesterday observed cloudiness (MODIS COT)