Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 0.79 000062001 North Bay ON 0.77 000090130 Edmonton Central AB 0.74 000090120 Edmonton South AB 0.74 000061104 Peterborough ON 0.72 000063301 Dorset ON 0.72 000054501 L'Assomption QC 0.71 000065201 Parry Sound ON 0.70 000090121 Edmonton East AB 0.69 000090601 Fort Saskatchewan AB 0.68 000065001 Barrie ON 0.68 000060104 Ottawa ON 0.66 080310013 Denver - NJH - 14th Ave. & Albion St. CO 0.66 080310002 Denver - CAMP - 2105 Broadway CO 0.64 000052301 Saint-Faustin QC 0.63 010735003 CORNER AL 0.62 010735002 PINSON AL 0.61 000054401 Saint-Anicet QC 0.60 060731002 Escondido CA 0.59 080010006 Commerce City - 7101 Birch St. CO 0.58 080350004 Chatfield Park - 11500 N. Roxborough Par CO 0.57 060659001 Lake Elsinore - W. Flint Street CA 0.56 000060303 Kingston ON 0.55 000065401 Belleville ON 0.55 000065301 Port Stanley ON 0.55 000061201 Cornwall ON 0.55 000054703 Bécancour (Aréna) QC 0.53 061110007 Thousand Oaks - Moorpark Road CA 0.53 010731005 MCADORY AL 0.52 000061004 Sarnia ON 0.51 060850005 San Jose - Jackson St. CA 0.51 000065801 Chatham ON 0.50 060792004 Mesa 2 /Nipomo CA 0.50 000065701 Morrisburg ON Correlation between RAQMS!dG!n and AIRNow diurn-avg surface PM2.5 #coincidences 10-30 and Corr > 0.5 0.95 000054401 Saint-Anicet QC 0.93 000090130 Edmonton Central AB 0.92 000090120 Edmonton South AB 0.92 000054501 L'Assomption QC 0.92 000052301 Saint-Faustin QC 0.91 060831008 Santa Maria - Broadway CA 0.88 000090601 Fort Saskatchewan AB 0.88 000090121 Edmonton East AB 0.88 000061104 Peterborough ON 0.85 000063301 Dorset ON 0.83 000091101 Elk Island AB 0.82 080310002 Denver - CAMP - 2105 Broadway CO 0.80 010731009 PROVIDENCE AL 0.78 061130004 Davis CA 0.78 000061004 Sarnia ON 0.77 010731005 MCADORY AL 0.77 000054703 Bécancour (Aréna) QC 0.76 000065001 Barrie ON 0.74 080010006 Commerce City - 7101 Birch St. CO 0.74 060530002 Unknown CA 0.74 051430005 SPRNGDLE AR 0.71 080310013 Denver - NJH - 14th Ave. & Albion St. CO 0.69 000090218 Calgary East AB 0.68 061113001 El Rio - Rio Mesa School #2 CA 0.67 000050801 Ursulines QC 0.64 060690002 Unknown CA 0.64 010735003 CORNER AL 0.64 000094301 Cold Lake South AB 0.63 000065301 Port Stanley ON 0.59 080131001 Boulder - CU - 2102 Athens St. CO 0.59 060290014 Bakersfield - 5558 California Ave CA 0.59 000065801 Chatham ON 0.58 000010401 Mount Pearl NF 0.57 080130003 Longmont CO 0.54 010732003 WYLAM AL 0.52 060650012 Banning - South Hathaway Street CA 0.51 010732006 HOOVER AL 0.50 060959999 Rio Vista CA Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 50.20 000010401 Mount Pearl NF 7.40 061113001 El Rio - Rio Mesa School #2 CA 4.30 060831008 Santa Maria - Broadway CA 3.10 000020301 WELLINGTON PE 2.80 060670012 Folsom CA 2.80 000020104 CHARLOTTETOWN PE 1.50 060650012 Banning - South Hathaway Street CA 1.40 060750005 San Francisco - Arkansas Street CA 1.10 060659001 Lake Elsinore - W. Flint Street CA 0.90 060570005 Grass Valley CA 0.60 061110009 Piru - Pacific CA Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 18.60 000010401 Mount Pearl NF 8.90 060690002 Unknown CA 8.00 040139812 Durango AZ 6.60 040134010 Dysart AZ 5.70 040134003 South Phoenix AZ 5.60 060530002 Unknown CA 5.60 040130019 West Phoenix AZ 4.90 060870007 Unknown CA 4.70 060650012 Banning - South Hathaway Street CA 3.90 060832011 GOLETA CA 3.60 060831008 Santa Maria - Broadway CA 3.60 000020301 WELLINGTON PE 3.60 000020104 CHARLOTTETOWN PE 3.30 060850002 Gilory - 9th Street CA 2.70 060670012 Folsom CA 2.10 060659001 Lake Elsinore - W. Flint Street CA 2.10 040139998 Vehicle Emissions Laboratory AZ 2.00 061113001 El Rio - Rio Mesa School #2 CA 2.00 060950004 Vallejo - 304 Tuolumne Street CA 1.70 069999921 EBAM12 - Sac T CA 1.70 060830011 Santa Barbara CA 1.30 060012004 Berkeley CA 1.20 060959999 Rio Vista CA 1.00 060811001 Redwood City CA 1.00 060670006 Sacramento - Del Paso Manor CA 0.90 000061104 Peterborough ON 0.80 080130003 Longmont CO 0.80 060970003 Santa Rosa - 5th Street CA 0.70 040191030 Green Valley AZ 0.60 000054501 L'Assomption QC 0.50 060550003 Napa - Jefferson St CA Mean observed daytime surface PM2.5 (6-hourly) #coincidences 10-30 and Corr > 0.5 356.00 061072002 Visalia - N. Church Street CA 266.90 060410003 Point Reyes CA 216.20 060771002 Stockton - Hazelton Street CA 206.90 060832011 GOLETA CA 189.20 060431001 Yosemite Village - Visitor Center CA 169.20 060690002 Unknown CA 133.60 060530002 Unknown CA 127.10 060870007 Unknown CA 123.00 060290014 Bakersfield - 5558 California Ave CA 110.90 060639901 Quincy BAM CA 91.50 060830011 Santa Barbara CA 90.10 040191034 Coachline AZ 74.70 060070002 Chico - Manzanita CA 50.60 060990005 Modesto - 14th Street CA 48.50 060250005 Calexico - Ethel Street CA 28.70 061130004 Davis CA 26.40 060670010 Sacramento - T Street CA 26.30 060074001 Gridley CA 25.80 060890007 Anderson CA 25.30 060610006 Roseville - N.Sunrise/Douglas CA 24.60 060711004 Upland CA 24.40 000090302 Red Deer AB 24.10 080310002 Denver - CAMP - 2105 Broadway CO 22.20 061010003 Yuba City CA 20.90 060310004 Corcoran CA 19.80 060953002 Vacaville CA 19.60 061131003 Woodland CA 19.40 000090120 Edmonton South AB 19.30 060550003 Napa - Jefferson St CA 19.20 060371002 Burbank - W. Palm Ave CA 18.90 010970003 CHICK. AL 18.90 010730023 NO. BHAM AL 18.80 000040801 CANTERBURY NB 18.50 040134003 South Phoenix AZ 17.90 060970003 Santa Rosa - 5th Street CA 17.90 060658001 Riverside - Rubidoux CA 17.70 000090130 Edmonton Central AB 17.50 060850002 Gilory - 9th Street CA 17.50 040191113 Geronimo AZ 17.40 000090121 Edmonton East AB 16.70 000090601 Fort Saskatchewan AB 16.30 060670006 Sacramento - Del Paso Manor CA 16.30 060376012 Santa Clarita CA 16.30 040191032 Rose Elementary AZ 16.20 060010007 Livermore - Rincon CA 16.10 060271023 Bishop Paiute Tribe-CA CA 15.80 060571001 Truckee BAM CA 15.50 040139812 Durango AZ 15.40 060710005 Lake Gregory - Crestline CA 15.20 000061004 Sarnia ON 15.10 060651003 Riverside - Magnolia CA 15.00 069999921 EBAM12 - Sac T CA 14.80 060650012 Banning - South Hathaway Street CA 14.80 040130019 West Phoenix AZ 14.50 080310013 Denver - NJH - 14th Ave. & Albion St. CO 14.20 010731010 LEEDS AL 14.20 000060424 Toronto Downtown ON 14.20 000054501 L'Assomption QC 13.90 010732003 WYLAM AL 13.80 000061502 Kitchener ON 13.70 000061402 Brantford ON 13.60 060012004 Berkeley CA 13.40 060410001 San Rafael CA 13.30 011011002 MONTG AL 13.10 060950004 Vallejo - 304 Tuolumne Street CA 13.00 010732006 HOOVER AL 12.50 060811001 Redwood City CA 12.40 000060204 Windsor Downtown ON 12.20 000065001 Barrie ON 12.20 000054703 Bécancour (Aréna) QC 11.80 040139998 Vehicle Emissions Laboratory AZ 11.70 060959999 Rio Vista CA 11.60 000061104 Peterborough ON 11.60 000054401 Saint-Anicet QC 11.40 051190007 PARR AR 11.10 010735003 CORNER AL 11.10 000060709 Sault Ste Marie ON 10.70 010731005 MCADORY AL 10.60 000060903 London ON 10.40 000090218 Calgary East AB 10.40 000065801 Chatham ON 10.30 000050801 Ursulines QC 10.20 080410017 Colorado College CO 10.10 060090001 San Andreas CA 10.10 060010011 Oakland West CA 10.10 051430005 SPRNGDLE AR 10.00 050350005 MARION AR 10.00 000010401 Mount Pearl NF 9.80 051191008 ADEQ-DSR AR 9.80 040191030 Green Valley AZ 9.60 080010006 Commerce City - 7101 Birch St. CO 9.60 000040207 SAINT JOHN WEST NB 9.40 061112002 Simi Valley - Cochran Street CA 9.40 051390006 El Dorado AR 9.40 000065301 Port Stanley ON 9.20 010731009 PROVIDENCE AL 9.20 000060512 Hamilton Downtown ON 8.90 060670012 Folsom CA 8.80 000052301 Saint-Faustin QC 8.60 060750005 San Francisco - Arkansas Street CA 8.30 061110009 Piru - Pacific CA 8.30 010331002 MSHOALS AL 8.20 040134010 Dysart AZ 8.20 000094301 Cold Lake South AB 8.10 080131001 Boulder - CU - 2102 Athens St. CO 8.10 000061302 St. Catharines ON 7.70 060831008 Santa Maria - Broadway CA 7.40 060659001 Lake Elsinore - W. Flint Street CA 7.30 061070009 Sequoia/Kings Canyon - Ash Mountain CA 7.30 060210002 Willows - E. Laurel Street CA 7.20 061113001 El Rio - Rio Mesa School #2 CA 6.90 000063301 Dorset ON 6.80 000020104 CHARLOTTETOWN PE 6.40 080130003 Longmont CO 6.40 000020301 WELLINGTON PE 5.40 000091101 Elk Island AB 4.50 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 4.40 060570005 Grass Valley CA Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 #coincidences and Corr > 0.5 88.30 000010401 Mount Pearl NF 58.10 000030310 SYDNEY NS 50.90 000020401 SOUTHAMPTON PE 23.70 000040302 MONCTON NB 23.70 000030701 AYLESFORD MOUNTAIN NS 23.70 000020301 WELLINGTON PE 23.70 000020104 CHARLOTTETOWN PE 16.60 060731010 San Diego - Beardsley Street CA 15.50 000041302 BATHURST NB 13.80 000040207 SAINT JOHN WEST NB 13.50 060250005 Calexico - Ethel Street CA 11.00 060650012 Banning - South Hathaway Street CA 10.60 061113001 El Rio - Rio Mesa School #2 CA 10.60 061111004 Ojai - Ojai Ave. CA 10.60 060832011 GOLETA CA 10.60 060832004 Lompoc H Street CA 10.60 060831008 Santa Maria - Broadway CA 10.60 060830011 Santa Barbara CA 10.10 040191034 Coachline AZ 9.90 010970003 CHICK. AL 8.20 061112002 Simi Valley - Cochran Street CA 8.20 061110009 Piru - Pacific CA 8.20 061110007 Thousand Oaks - Moorpark Road CA 8.20 060731008 Camp Pendleton CA 8.20 060731002 Escondido CA 8.20 060711004 Upland CA 8.20 060710005 Lake Gregory - Crestline CA 8.20 060659001 Lake Elsinore - W. Flint Street CA 8.20 060658001 Riverside - Rubidoux CA 8.20 060651003 Riverside - Magnolia CA 8.20 060376012 Santa Clarita CA 8.20 060374002 North Long Beach CA 8.20 060371201 Reseda CA 8.20 060371103 Los Angeles - N. Main Street CA 8.20 060371002 Burbank - W. Palm Ave CA 8.20 060370016 Glendora - Laurel CA 7.90 000040901 ST ANDREWS NB 7.90 000040801 CANTERBURY NB 6.90 000065001 Barrie ON 6.90 000061502 Kitchener ON 6.90 000061402 Brantford ON 6.90 000061302 St. Catharines ON 6.90 000060512 Hamilton Downtown ON 6.90 000060424 Toronto Downtown ON 6.60 000060204 Windsor Downtown ON 5.60 069999921 EBAM12 - Sac T CA 5.60 061131003 Woodland CA 5.60 061130004 Davis CA 5.60 060970003 Santa Rosa - 5th Street CA 5.60 060959999 Rio Vista CA 5.60 060953002 Vacaville CA 5.60 060950004 Vallejo - 304 Tuolumne Street CA 5.60 060870003 Unknown CA 5.60 060850005 San Jose - Jackson St. CA 5.60 060811001 Redwood City CA 5.60 060771002 Stockton - Hazelton Street CA 5.60 060750005 San Francisco - Arkansas Street CA 5.60 060679991 Rancho Seco CA 5.60 060675003 Sloughhouse CA 5.60 060670012 Folsom CA 5.60 060670011 Elk Grove CA 5.60 060670010 Sacramento - T Street CA 5.60 060670006 Sacramento - Del Paso Manor CA 5.60 060610006 Roseville - N.Sunrise/Douglas CA 5.60 060550003 Napa - Jefferson St CA 5.60 060410003 Point Reyes CA 5.60 060410001 San Rafael CA 5.60 060012004 Berkeley CA 5.60 060010011 Oakland West CA 5.60 060010007 Livermore - Rincon CA 5.50 000063701 Grand Bend ON 5.50 000062501 Tiverton ON 5.30 060870007 Unknown CA 5.30 060850002 Gilory - 9th Street CA 5.30 060690002 Unknown CA 5.30 060530002 Unknown CA 5.10 011011002 MONTG AL 5.10 000061201 Cornwall ON 5.10 000054501 L'Assomption QC 5.10 000054401 Saint-Anicet QC 5.10 000052301 Saint-Faustin QC 4.70 000065801 Chatham ON 4.70 000065301 Port Stanley ON 4.70 000061004 Sarnia ON 4.70 000060903 London ON 4.60 000065401 Belleville ON 4.60 000061104 Peterborough ON 4.60 000054703 Bécancour (Aréna) QC 4.60 000051501 Zéphirin QC 4.60 000050801 Ursulines QC 4.50 000065701 Morrisburg ON 4.50 000060303 Kingston ON 4.00 061072002 Visalia - N. Church Street CA 4.00 060798001 Atascadero CA 4.00 060792004 Mesa 2 /Nipomo CA 4.00 060310004 Corcoran CA 4.00 060290014 Bakersfield - 5558 California Ave CA 4.00 060190008 Fresno - 1st Street CA 3.90 010735003 CORNER AL 3.90 010735002 PINSON AL 3.90 010732006 HOOVER AL 3.90 010732003 WYLAM AL 3.90 010731010 LEEDS AL 3.90 010730023 NO. BHAM AL 3.60 040139998 Vehicle Emissions Laboratory AZ 3.60 040139812 Durango AZ 3.60 040138005 Estrella AZ 3.60 040134010 Dysart AZ 3.60 040134003 South Phoenix AZ 3.60 040130019 West Phoenix AZ 3.60 010731009 PROVIDENCE AL 3.60 010731005 MCADORY AL 3.60 010331002 MSHOALS AL 3.50 000060104 Ottawa ON 3.40 051390006 El Dorado AR 3.40 051191008 ADEQ-DSR AR 3.40 051190007 PARR AR 3.10 061010003 Yuba City CA 3.10 060890007 Anderson CA 3.10 060570005 Grass Valley CA 3.10 060210002 Willows - E. Laurel Street CA 3.10 060074001 Gridley CA 3.10 060070002 Chico - Manzanita CA 3.10 050350005 MARION AR 3.10 040191113 Geronimo AZ 3.10 040191032 Rose Elementary AZ 3.10 040191030 Green Valley AZ 3.00 000065201 Parry Sound ON 3.00 000062001 North Bay ON 3.00 000060609 Sudbury ON 2.80 000090601 Fort Saskatchewan AB 2.80 000090130 Edmonton Central AB 2.80 000090121 Edmonton East AB 2.80 000090120 Edmonton South AB 2.80 000063301 Dorset ON 2.80 000060709 Sault Ste Marie ON 2.60 000090302 Red Deer AB 2.60 000090222 Calgary Northwest AB 2.60 000090218 Calgary East AB 2.40 051430005 SPRNGDLE AR 1.80 061070009 Sequoia/Kings Canyon - Ash Mountain CA 1.80 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 1.70 060990005 Modesto - 14th Street CA 1.70 060639901 Quincy BAM CA 1.70 060571001 Truckee BAM CA 1.70 060431001 Yosemite Village - Visitor Center CA 1.70 060090001 San Andreas CA 1.30 080350004 Chatfield Park - 11500 N. Roxborough Par CO 1.30 080310013 Denver - NJH - 14th Ave. & Albion St. CO 1.30 080310002 Denver - CAMP - 2105 Broadway CO 1.30 080131001 Boulder - CU - 2102 Athens St. CO 1.30 080130003 Longmont CO 1.30 080010006 Commerce City - 7101 Birch St. CO 1.20 080770017 Grand Junction - Powell Building CO 1.20 080410017 Colorado College CO 1.20 000090502 Lethbridge AB 1.10 000091101 Elk Island AB 1.10 000090402 Medicine Hat - Crescent Hts AB 1.00 060271023 Bishop Paiute Tribe-CA CA 1.00 000094301 Cold Lake South AB AIRNow 18Z yesterday 1-hr surface PM2.5 AIRNow yesterday maximum 1-hr surface PM2.5 Yesterday observed cloudiness (MODIS COT)