Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 0.64 000062501 Tiverton ON 0.59 000040203 FOREST HILLS NB 0.58 060210002 Willows - E. Laurel Street CA 0.55 011011002 MONTG AL 0.53 000061104 Peterborough ON 0.53 000060512 Hamilton Downtown ON 0.50 000065001 Barrie ON 0.50 000061201 Cornwall ON 0.50 000060424 Toronto Downtown ON #coincidences 10-30 and Corr > 0.5 0.85 000051501 Zéphirin QC Correlation between RAQMS!dG!n and AIRNow diurn-avg surface PM2.5 #coincidences >30 and Corr > 0.5 0.81 011011002 MONTG AL 0.80 000060512 Hamilton Downtown ON 0.79 000040203 FOREST HILLS NB 0.78 060210002 Willows - E. Laurel Street CA 0.78 000065801 Chatham ON 0.77 000062501 Tiverton ON 0.77 000061104 Peterborough ON 0.76 060074001 Gridley CA 0.75 000063701 Grand Bend ON 0.73 060310004 Corcoran CA 0.72 000065401 Belleville ON 0.71 050350005 MARION AR 0.71 000030310 SYDNEY NS 0.68 051430005 SPRNGDLE AR 0.67 000061502 Kitchener ON 0.67 000060424 Toronto Downtown ON 0.66 010970003 CHICK. AL 0.63 000065001 Barrie ON 0.62 061010003 Yuba City CA 0.62 010731009 PROVIDENCE AL 0.61 060890007 Anderson CA 0.60 060670012 Folsom CA 0.56 010331002 MSHOALS AL 0.56 000061302 St. Catharines ON 0.55 000094301 Cold Lake South AB 0.54 000090222 Calgary Northwest AB 0.53 051190007 PARR AR 0.53 010731005 MCADORY AL 0.53 000054401 Saint-Anicet QC 0.50 000061201 Cornwall ON #coincidences 10-30 and Corr > 0.5 0.97 060530002 Unknown CA 0.76 000060903 London ON 0.76 000060104 Ottawa ON 0.54 000060709 Sault Ste Marie ON 0.54 000060609 Sudbury ON Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 36.00 000020401 SOUTHAMPTON PE 23.30 000030310 SYDNEY NS 15.00 000010401 Mount Pearl NF 9.10 000020301 WELLINGTON PE 7.60 000061502 Kitchener ON 7.20 000020104 CHARLOTTETOWN PE 7.10 000060424 Toronto Downtown ON 7.00 000061302 St. Catharines ON 6.80 060650012 Banning - South Hathaway Street CA 6.70 000040302 MONCTON NB 6.30 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 6.10 000061402 Brantford ON 5.60 060731006 Alpine CA 5.20 000065301 Port Stanley ON 4.80 040138005 Estrella AZ 4.70 060832004 Lompoc H Street CA 4.60 000065001 Barrie ON 4.60 000060512 Hamilton Downtown ON 4.50 040191034 Coachline AZ 4.40 000040203 FOREST HILLS NB 4.10 000040207 SAINT JOHN WEST NB 4.00 040134010 Dysart AZ 3.50 000065401 Belleville ON 3.10 060659001 Lake Elsinore - W. Flint Street CA 3.00 080310002 Denver - CAMP - 2105 Broadway CO 3.00 040139998 Vehicle Emissions Laboratory AZ 2.90 060731002 Escondido CA 2.90 000065801 Chatham ON 2.90 000052301 Saint-Faustin QC 2.80 060670012 Folsom CA 2.70 000061201 Cornwall ON 2.60 000061104 Peterborough ON 2.40 060370016 Glendora - Laurel CA 2.10 000040901 ST ANDREWS NB 2.00 000060204 Windsor Downtown ON 1.90 000054401 Saint-Anicet QC 1.50 060410003 Point Reyes CA 1.40 000062501 Tiverton ON 1.30 000060303 Kingston ON 1.20 000062001 North Bay ON 1.10 000063301 Dorset ON 1.00 060651003 Riverside - Magnolia CA 1.00 060376012 Santa Clarita CA 1.00 060250005 Calexico - Ethel Street CA 0.90 000065701 Morrisburg ON 0.70 060731008 Camp Pendleton CA 0.50 060731010 San Diego - Beardsley Street CA #coincidences 10-30 and Corr > 0.5 8.70 061110007 Thousand Oaks - Moorpark Road CA 6.90 061111004 Ojai - Ojai Ave. CA 6.20 061110009 Piru - Pacific CA 4.80 000060903 London ON 4.70 061112002 Simi Valley - Cochran Street CA 1.10 060530002 Unknown CA Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 14.30 000020401 SOUTHAMPTON PE 11.90 000030310 SYDNEY NS 9.50 000010401 Mount Pearl NF 6.30 000065301 Port Stanley ON 5.10 000065801 Chatham ON 5.00 000061502 Kitchener ON 5.00 000040302 MONCTON NB 4.80 000061302 St. Catharines ON 4.70 000065001 Barrie ON 4.60 000060512 Hamilton Downtown ON 4.50 000060424 Toronto Downtown ON 4.40 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 4.40 000061402 Brantford ON 4.10 060832004 Lompoc H Street CA 3.60 000061201 Cornwall ON 3.60 000052301 Saint-Faustin QC 3.50 060731010 San Diego - Beardsley Street CA 3.50 040191034 Coachline AZ 3.20 000065401 Belleville ON 3.20 000020301 WELLINGTON PE 3.00 060731006 Alpine CA 3.00 040138005 Estrella AZ 2.90 060670012 Folsom CA 2.90 000061104 Peterborough ON 2.90 000060204 Windsor Downtown ON 2.80 060370016 Glendora - Laurel CA 2.80 040134003 South Phoenix AZ 2.80 000054401 Saint-Anicet QC 2.70 061070009 Sequoia/Kings Canyon - Ash Mountain CA 2.70 060659001 Lake Elsinore - W. Flint Street CA 2.70 060410003 Point Reyes CA 2.40 060731002 Escondido CA 2.40 040134010 Dysart AZ 2.30 061113001 El Rio - Rio Mesa School #2 CA 2.20 000062501 Tiverton ON 2.20 000060303 Kingston ON 2.20 000040203 FOREST HILLS NB 2.10 040139998 Vehicle Emissions Laboratory AZ 2.10 000061004 Sarnia ON 1.90 000065701 Morrisburg ON 1.90 000063301 Dorset ON 1.80 000040901 ST ANDREWS NB 1.70 060650012 Banning - South Hathaway Street CA 1.70 000020104 CHARLOTTETOWN PE 1.40 060870007 Unknown CA 1.40 040191030 Green Valley AZ 1.40 040130019 West Phoenix AZ 1.40 000040207 SAINT JOHN WEST NB 1.30 060550003 Napa - Jefferson St CA 1.30 060010011 Oakland West CA 1.30 000062001 North Bay ON 1.10 080310002 Denver - CAMP - 2105 Broadway CO 1.10 060830011 Santa Barbara CA 1.10 060690002 Unknown CA 1.10 060250005 Calexico - Ethel Street CA 1.10 000063701 Grand Bend ON 0.90 060670011 Elk Grove CA 0.90 060651003 Riverside - Magnolia CA 0.90 040139812 Durango AZ 0.80 080131001 Boulder - CU - 2102 Athens St. CO 0.80 060850005 San Jose - Jackson St. CA 0.50 080130003 Longmont CO 0.50 060658001 Riverside - Rubidoux CA 0.50 060376012 Santa Clarita CA #coincidences 10-30 and Corr > 0.5 5.50 061111004 Ojai - Ojai Ave. CA 5.40 061110007 Thousand Oaks - Moorpark Road CA 4.90 000060903 London ON 3.20 061110009 Piru - Pacific CA 2.80 061112002 Simi Valley - Cochran Street CA 2.50 060530002 Unknown CA 2.20 060679991 Rancho Seco CA 1.70 000060609 Sudbury ON 1.40 000065201 Parry Sound ON 1.40 000060104 Ottawa ON Mean observed daytime surface PM2.5 (6-hourly) #coincidences >30 and Corr > 0.5 642.80 061130004 Davis CA 200.30 060690002 Unknown CA 197.30 060290014 Bakersfield - 5558 California Ave CA 105.10 060953002 Vacaville CA 49.40 060830011 Santa Barbara CA 41.30 060792004 Mesa 2 /Nipomo CA 41.30 060074001 Gridley CA 40.80 060670010 Sacramento - T Street CA 35.10 060190008 Fresno - 1st Street CA 35.00 060070002 Chico - Manzanita CA 31.10 060310004 Corcoran CA 30.80 061070009 Sequoia/Kings Canyon - Ash Mountain CA 26.90 060990005 Modesto - 14th Street CA 26.20 060639901 Quincy BAM CA 24.30 060890007 Anderson CA 23.10 010730023 NO. BHAM AL 22.20 061072002 Visalia - N. Church Street CA 21.40 051191008 ADEQ-DSR AR 20.60 061131003 Woodland CA 20.40 010970003 CHICK. AL 20.30 010732003 WYLAM AL 18.80 051190007 PARR AR 18.70 051390006 El Dorado AR 18.50 000090302 Red Deer AB 18.20 040130019 West Phoenix AZ 18.10 061010003 Yuba City CA 18.00 060710005 Lake Gregory - Crestline CA 17.70 060670006 Sacramento - Del Paso Manor CA 16.70 060711004 Upland CA 16.70 011011002 MONTG AL 16.20 060371002 Burbank - W. Palm Ave CA 15.90 010731010 LEEDS AL 15.60 060371201 Reseda CA 15.40 060610006 Roseville - N.Sunrise/Douglas CA 15.40 060374002 North Long Beach CA 15.20 060650012 Banning - South Hathaway Street CA 14.90 060210002 Willows - E. Laurel Street CA 14.70 010732006 HOOVER AL 14.70 010731005 MCADORY AL 14.50 060590007 Anaheim CA 14.10 000090502 Lethbridge AB 14.00 060571001 Truckee BAM CA 14.00 060371103 Los Angeles - N. Main Street CA 14.00 000061004 Sarnia ON 13.90 060658001 Riverside - Rubidoux CA 13.60 060730003 El Cajon - Redwood Ave CA 13.60 060010011 Oakland West CA 13.60 000090120 Edmonton South AB 13.50 060670011 Elk Grove CA 13.50 000090121 Edmonton East AB 13.40 060250005 Calexico - Ethel Street CA 13.40 060012004 Berkeley CA 13.30 010735003 CORNER AL 13.20 010331002 MSHOALS AL 13.00 060959999 Rio Vista CA 13.00 060850005 San Jose - Jackson St. CA 13.00 060431001 Yosemite Village - Visitor Center CA 12.90 060731008 Camp Pendleton CA 12.80 010731009 PROVIDENCE AL 12.50 060731010 San Diego - Beardsley Street CA 12.40 060651003 Riverside - Magnolia CA 12.40 050350005 MARION AR 12.20 040139812 Durango AZ 12.10 060376012 Santa Clarita CA 11.90 060550003 Napa - Jefferson St CA 11.90 010735002 PINSON AL 11.70 051430005 SPRNGDLE AR 11.40 061113001 El Rio - Rio Mesa School #2 CA 11.40 000090218 Calgary East AB 10.90 080010006 Commerce City - 7101 Birch St. CO 10.80 000090130 Edmonton Central AB 10.40 000060204 Windsor Downtown ON 10.20 000060512 Hamilton Downtown ON 10.10 060570005 Grass Valley CA 10.10 060370016 Glendora - Laurel CA 10.10 000065001 Barrie ON 10.00 060870007 Unknown CA 9.90 060731002 Escondido CA 9.90 000090601 Fort Saskatchewan AB 9.80 000094301 Cold Lake South AB 9.80 000050801 Ursulines QC 9.70 040134003 South Phoenix AZ 9.70 000054703 Bécancour (Aréna) QC 9.60 080310025 Denver Animal Shelter - 678 S. Jason St. CO 9.50 040191113 Geronimo AZ 9.50 000054501 L'Assomption QC 9.10 060731006 Alpine CA 9.00 080310013 Denver - NJH - 14th Ave. & Albion St. CO 9.00 060410003 Point Reyes CA 8.80 060659001 Lake Elsinore - W. Flint Street CA 8.70 060271023 Bishop Paiute Tribe-CA CA 8.70 000065801 Chatham ON 8.40 000090222 Calgary Northwest AB 8.40 000061402 Brantford ON 8.30 000061502 Kitchener ON 8.30 000041302 BATHURST NB 8.20 000060424 Toronto Downtown ON 8.10 000061302 St. Catharines ON 7.90 080410017 Colorado College CO 7.80 000020104 CHARLOTTETOWN PE 7.70 060670012 Folsom CA 7.70 000030310 SYDNEY NS 7.60 000063701 Grand Bend ON 7.40 060832004 Lompoc H Street CA 7.30 000040203 FOREST HILLS NB 7.20 000040207 SAINT JOHN WEST NB 7.10 040139998 Vehicle Emissions Laboratory AZ 6.80 000065301 Port Stanley ON 6.30 040191032 Rose Elementary AZ 6.30 000061104 Peterborough ON 6.20 040191034 Coachline AZ 6.20 040134010 Dysart AZ 6.20 000040302 MONCTON NB 6.10 080130003 Longmont CO 6.10 000054401 Saint-Anicet QC 5.90 080131001 Boulder - CU - 2102 Athens St. CO 5.90 000020301 WELLINGTON PE 5.60 000052301 Saint-Faustin QC 5.30 040138005 Estrella AZ 5.30 000061201 Cornwall ON 5.20 040191030 Green Valley AZ 5.10 000010401 Mount Pearl NF 5.00 000060303 Kingston ON 4.90 000065701 Morrisburg ON 4.80 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 4.80 000065401 Belleville ON 4.80 000062501 Tiverton ON 4.70 000062001 North Bay ON 4.30 000063301 Dorset ON 4.20 000020401 SOUTHAMPTON PE 3.50 080310002 Denver - CAMP - 2105 Broadway CO 3.20 000040901 ST ANDREWS NB #coincidences 10-30 and Corr > 0.5 103.40 060798001 Atascadero CA 45.90 080770017 Grand Junction - Powell Building CO 34.70 060679991 Rancho Seco CA 24.70 060870003 Unknown CA 17.20 060675003 Sloughhouse CA 7.50 061112002 Simi Valley - Cochran Street CA 7.30 000040103 FREDERICTON NB 6.50 000065201 Parry Sound ON 6.40 080350004 Chatfield Park - 11500 N. Roxborough Par CO 6.10 061110009 Piru - Pacific CA 5.90 000060104 Ottawa ON 5.60 000060609 Sudbury ON 5.50 061111004 Ojai - Ojai Ave. CA 5.50 000091101 Elk Island AB 5.40 061110007 Thousand Oaks - Moorpark Road CA 5.20 000060709 Sault Ste Marie ON 4.20 000060903 London ON 4.10 060530002 Unknown CA Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 #coincidences and Corr > 0.5 40.90 060731010 San Diego - Beardsley Street CA 36.90 060650012 Banning - South Hathaway Street CA 35.10 060731006 Alpine CA 35.10 060730003 El Cajon - Redwood Ave CA 35.10 060250005 Calexico - Ethel Street CA 31.10 061113001 El Rio - Rio Mesa School #2 CA 31.10 061111004 Ojai - Ojai Ave. CA 31.10 060832004 Lompoc H Street CA 31.10 060830011 Santa Barbara CA 26.20 011011002 MONTG AL 23.40 061112002 Simi Valley - Cochran Street CA 23.40 061110009 Piru - Pacific CA 23.40 061110007 Thousand Oaks - Moorpark Road CA 23.40 060731008 Camp Pendleton CA 23.40 060731002 Escondido CA 23.40 060711004 Upland CA 23.40 060710005 Lake Gregory - Crestline CA 23.40 060659001 Lake Elsinore - W. Flint Street CA 23.40 060658001 Riverside - Rubidoux CA 23.40 060651003 Riverside - Magnolia CA 23.40 060590007 Anaheim CA 23.40 060376012 Santa Clarita CA 23.40 060374002 North Long Beach CA 23.40 060371201 Reseda CA 23.40 060371103 Los Angeles - N. Main Street CA 23.40 060371002 Burbank - W. Palm Ave CA 23.40 060370016 Glendora - Laurel CA 19.60 061070009 Sequoia/Kings Canyon - Ash Mountain CA 19.60 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 18.20 010735003 CORNER AL 18.20 010735002 PINSON AL 18.20 010732006 HOOVER AL 18.20 010732003 WYLAM AL 18.20 010731010 LEEDS AL 18.20 010730023 NO. BHAM AL 16.60 010731009 PROVIDENCE AL 16.60 010731005 MCADORY AL 16.60 010331002 MSHOALS AL 13.50 010970003 CHICK. AL 12.30 061072002 Visalia - N. Church Street CA 12.30 060798001 Atascadero CA 12.30 060792004 Mesa 2 /Nipomo CA 12.30 060310004 Corcoran CA 12.30 060290014 Bakersfield - 5558 California Ave CA 12.30 060190008 Fresno - 1st Street CA 12.30 000020401 SOUTHAMPTON PE 12.10 000065801 Chatham ON 12.10 000065301 Port Stanley ON 12.10 000061004 Sarnia ON 12.10 000060903 London ON 11.80 060870007 Unknown CA 11.80 060690002 Unknown CA 11.80 060530002 Unknown CA 11.50 000030310 SYDNEY NS 11.10 050350005 MARION AR 10.90 000010401 Mount Pearl NF 10.80 000065001 Barrie ON 10.80 000061502 Kitchener ON 10.80 000061402 Brantford ON 10.80 000061302 St. Catharines ON 10.80 000060512 Hamilton Downtown ON 10.80 000060424 Toronto Downtown ON 10.70 000063701 Grand Bend ON 10.70 000062501 Tiverton ON 9.60 040191034 Coachline AZ 9.20 000060204 Windsor Downtown ON 8.10 000060709 Sault Ste Marie ON 7.80 000065401 Belleville ON 7.80 000061104 Peterborough ON 7.50 000065201 Parry Sound ON 7.50 000062001 North Bay ON 7.50 000060609 Sudbury ON 7.40 040139998 Vehicle Emissions Laboratory AZ 7.40 040139812 Durango AZ 7.40 040138005 Estrella AZ 7.40 040134010 Dysart AZ 7.40 040134003 South Phoenix AZ 7.40 040130019 West Phoenix AZ 7.20 051390006 El Dorado AR 7.20 051191008 ADEQ-DSR AR 7.20 051190007 PARR AR 6.10 000041302 BATHURST NB 5.90 000065701 Morrisburg ON 5.90 000060303 Kingston ON 5.80 000040302 MONCTON NB 5.80 000030701 AYLESFORD MOUNTAIN NS 5.80 000020301 WELLINGTON PE 5.80 000020104 CHARLOTTETOWN PE 5.70 000094301 Cold Lake South AB 5.70 000063301 Dorset ON 5.30 000060104 Ottawa ON 5.10 000091101 Elk Island AB 4.90 000040209 CASTLE ST. SAINT JO NB 4.90 000040207 SAINT JOHN WEST NB 4.90 000040203 FOREST HILLS NB 4.90 000040103 FREDERICTON NB 4.50 000090601 Fort Saskatchewan AB 4.50 000090130 Edmonton Central AB 4.50 000090121 Edmonton East AB 4.50 000090120 Edmonton South AB 4.50 000061201 Cornwall ON 4.50 000054501 L'Assomption QC 4.50 000054401 Saint-Anicet QC 4.50 000052301 Saint-Faustin QC 3.90 000040901 ST ANDREWS NB 3.90 000040801 CANTERBURY NB 3.80 061131003 Woodland CA 3.80 061130004 Davis CA 3.80 060959999 Rio Vista CA 3.80 060953002 Vacaville CA 3.80 060870003 Unknown CA 3.80 060850005 San Jose - Jackson St. CA 3.80 060679991 Rancho Seco CA 3.80 060675003 Sloughhouse CA 3.80 060670012 Folsom CA 3.80 060670011 Elk Grove CA 3.80 060670010 Sacramento - T Street CA 3.80 060670006 Sacramento - Del Paso Manor CA 3.80 060610006 Roseville - N.Sunrise/Douglas CA 3.80 060550003 Napa - Jefferson St CA 3.80 060410003 Point Reyes CA 3.80 060012004 Berkeley CA 3.80 060010011 Oakland West CA 3.80 040191113 Geronimo AZ 3.80 040191032 Rose Elementary AZ 3.80 040191030 Green Valley AZ 3.70 051430005 SPRNGDLE AR 2.70 000091901 Caroline AB 2.70 000090302 Red Deer AB 2.70 000090222 Calgary Northwest AB 2.70 000090218 Calgary East AB 2.50 000054703 Bécancour (Aréna) QC 2.50 000051501 Zéphirin QC 2.50 000050801 Ursulines QC 2.30 061010003 Yuba City CA 2.30 060890007 Anderson CA 2.30 060570005 Grass Valley CA 2.30 060210002 Willows - E. Laurel Street CA 2.30 060074001 Gridley CA 2.30 060070002 Chico - Manzanita CA 2.10 080770017 Grand Junction - Powell Building CO 1.90 080310025 Denver Animal Shelter - 678 S. Jason St. CO 1.90 080310013 Denver - NJH - 14th Ave. & Albion St. CO 1.90 080310002 Denver - CAMP - 2105 Broadway CO 1.90 080010006 Commerce City - 7101 Birch St. CO 1.90 000090502 Lethbridge AB 1.80 080410017 Colorado College CO 1.80 080350004 Chatfield Park - 11500 N. Roxborough Par CO 1.80 080131001 Boulder - CU - 2102 Athens St. CO 1.80 080130003 Longmont CO 1.80 060271023 Bishop Paiute Tribe-CA CA 1.60 060990005 Modesto - 14th Street CA 1.60 060431001 Yosemite Village - Visitor Center CA 1.30 060639901 Quincy BAM CA 1.30 060571001 Truckee BAM CA AIRNow 18Z yesterday 1-hr surface PM2.5 AIRNow yesterday maximum 1-hr surface PM2.5 Yesterday observed cloudiness (MODIS COT)