Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 0.92 060530002 Unknown CA 0.91 000090601 Fort Saskatchewan AB 0.90 000065701 Morrisburg ON 0.90 000062001 North Bay ON 0.90 000060903 London ON 0.89 000090120 Edmonton South AB 0.89 000061104 Peterborough ON 0.89 000061004 Sarnia ON 0.88 000065201 Parry Sound ON 0.86 000060609 Sudbury ON 0.85 000060303 Kingston ON 0.84 060832004 Lompoc H Street CA 0.84 000065301 Port Stanley ON 0.84 000063301 Dorset ON 0.83 000061302 St. Catharines ON 0.83 000060204 Windsor Downtown ON 0.81 000065401 Belleville ON 0.81 000065001 Barrie ON 0.79 000090130 Edmonton Central AB 0.78 000060424 Toronto Downtown ON 0.77 000065801 Chatham ON 0.77 000062501 Tiverton ON 0.77 000061201 Cornwall ON 0.76 000061402 Brantford ON 0.76 000060512 Hamilton Downtown ON 0.76 000054501 L'Assomption QC 0.76 000040203 FOREST HILLS NB 0.75 000061502 Kitchener ON 0.75 000040801 CANTERBURY NB 0.72 000051501 Zéphirin QC 0.67 051430005 SPRNGDLE AR 0.67 000060104 Ottawa ON 0.64 000063701 Grand Bend ON 0.62 060010011 Oakland West CA 0.62 000040207 SAINT JOHN WEST NB 0.61 010970003 CHICK. AL 0.58 000030701 AYLESFORD MOUNTAIN NS 0.57 000052301 Saint-Faustin QC 0.56 000090121 Edmonton East AB 0.52 060950004 Vallejo - 304 Tuolumne Street CA 0.51 010731010 LEEDS AL 0.50 060610006 Roseville - N.Sunrise/Douglas CA Correlation between RAQMS!dG!n and AIRNow diurn-avg surface PM2.5 #coincidences 10-30 and Corr > 0.5 1.00 000061104 Peterborough ON 0.99 000090120 Edmonton South AB 0.99 000065701 Morrisburg ON 0.99 000065401 Belleville ON 0.99 000061004 Sarnia ON 0.99 000060303 Kingston ON 0.98 000061201 Cornwall ON 0.98 000060903 London ON 0.97 000090601 Fort Saskatchewan AB 0.97 000090121 Edmonton East AB 0.96 000065001 Barrie ON 0.96 000062501 Tiverton ON 0.96 000062001 North Bay ON 0.96 000051501 Zéphirin QC 0.96 000040801 CANTERBURY NB 0.95 000060424 Toronto Downtown ON 0.95 000054401 Saint-Anicet QC 0.94 000090130 Edmonton Central AB 0.94 000065201 Parry Sound ON 0.94 000063301 Dorset ON 0.94 000054501 L'Assomption QC 0.93 000061502 Kitchener ON 0.93 000061402 Brantford ON 0.93 000060609 Sudbury ON 0.93 000060512 Hamilton Downtown ON 0.93 000052301 Saint-Faustin QC 0.92 000065301 Port Stanley ON 0.91 000063701 Grand Bend ON 0.90 080310013 Denver - NJH - 14th Ave. & Albion St. CO 0.89 000065801 Chatham ON 0.88 000040203 FOREST HILLS NB 0.82 060731010 San Diego - Beardsley Street CA 0.80 060376012 Santa Clarita CA 0.79 010732006 HOOVER AL 0.77 060890007 Anderson CA 0.77 000040103 FREDERICTON NB 0.77 000030310 SYDNEY NS 0.76 000091901 Caroline AB 0.74 060670006 Sacramento - Del Paso Manor CA 0.74 060658001 Riverside - Rubidoux CA 0.73 060832011 GOLETA CA 0.72 060651003 Riverside - Magnolia CA 0.72 000090302 Red Deer AB 0.71 060798001 Atascadero CA 0.69 060711004 Upland CA 0.68 000040209 CASTLE ST. SAINT JO NB 0.68 000020104 CHARLOTTETOWN PE 0.67 060374002 North Long Beach CA 0.67 060371002 Burbank - W. Palm Ave CA 0.66 061112002 Simi Valley - Cochran Street CA 0.66 060659001 Lake Elsinore - W. Flint Street CA 0.65 060371201 Reseda CA 0.64 060610006 Roseville - N.Sunrise/Douglas CA 0.63 061131003 Woodland CA 0.62 060590007 Anaheim CA 0.59 061110007 Thousand Oaks - Moorpark Road CA 0.58 061130004 Davis CA 0.57 060731008 Camp Pendleton CA 0.55 060650012 Banning - South Hathaway Street CA 0.51 060750005 San Francisco - Arkansas Street CA Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 16.40 000030310 SYDNEY NS 10.80 060850002 Gilory - 9th Street CA 9.70 060670012 Folsom CA 9.10 060670011 Elk Grove CA 8.40 060750005 San Francisco - Arkansas Street CA 8.10 061131003 Woodland CA 8.00 060610006 Roseville - N.Sunrise/Douglas CA 7.70 060670006 Sacramento - Del Paso Manor CA 7.40 000020104 CHARLOTTETOWN PE 6.60 060832011 GOLETA CA 6.10 060410003 Point Reyes CA 6.10 040191034 Coachline AZ 5.40 000040103 FREDERICTON NB 5.30 000020301 WELLINGTON PE 5.10 040139998 Vehicle Emissions Laboratory AZ 5.10 040134003 South Phoenix AZ 4.50 061130004 Davis CA 4.20 000040209 CASTLE ST. SAINT JO NB 4.00 060990005 Modesto - 14th Street CA 4.00 040134010 Dysart AZ 3.90 060731008 Camp Pendleton CA 3.60 040138005 Estrella AZ 3.30 060798001 Atascadero CA 2.60 060990006 Turlock - S. Minaret Street CA 2.40 040139812 Durango AZ 1.80 060792004 Mesa 2 /Nipomo CA 1.70 061072002 Visalia - N. Church Street CA 1.50 000090601 Fort Saskatchewan AB 1.20 040132001 Glendale Community College AZ 1.00 061110007 Thousand Oaks - Moorpark Road CA 0.60 060731002 Escondido CA Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences 10-30 and Corr > 0.5 15.30 000030310 SYDNEY NS 8.00 060850002 Gilory - 9th Street CA 7.80 060670012 Folsom CA 7.10 060750005 San Francisco - Arkansas Street CA 6.50 060832011 GOLETA CA 6.10 060670006 Sacramento - Del Paso Manor CA 5.70 061131003 Woodland CA 5.60 060670011 Elk Grove CA 5.50 060610006 Roseville - N.Sunrise/Douglas CA 5.40 060410003 Point Reyes CA 4.60 000020104 CHARLOTTETOWN PE 3.80 060798001 Atascadero CA 3.60 060990006 Turlock - S. Minaret Street CA 3.60 060830011 Santa Barbara CA 3.50 060792004 Mesa 2 /Nipomo CA 3.00 040139998 Vehicle Emissions Laboratory AZ 2.80 060990005 Modesto - 14th Street CA 2.70 061110007 Thousand Oaks - Moorpark Road CA 2.70 040134010 Dysart AZ 2.70 000020301 WELLINGTON PE 2.50 060290014 Bakersfield - 5558 California Ave CA 2.40 060431001 Yosemite Village - Visitor Center CA 2.30 060731010 San Diego - Beardsley Street CA 2.20 040138005 Estrella AZ 2.10 040191034 Coachline AZ 2.00 040134003 South Phoenix AZ 1.80 040132001 Glendale Community College AZ 1.60 061113001 El Rio - Rio Mesa School #2 CA 1.60 061072002 Visalia - N. Church Street CA 1.60 000040103 FREDERICTON NB 1.20 061130004 Davis CA 1.00 040139812 Durango AZ 0.90 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 0.70 060374002 North Long Beach CA 0.70 051390006 El Dorado AR 0.60 060731002 Escondido CA 0.50 000065801 Chatham ON Mean observed daytime surface PM2.5 (6-hourly) #coincidences 10-30 and Corr > 0.5 312.50 060290014 Bakersfield - 5558 California Ave CA 172.50 060431001 Yosemite Village - Visitor Center CA 111.10 060190008 Fresno - 1st Street CA 72.30 000054401 Saint-Anicet QC 34.70 000054501 L'Assomption QC 34.60 010732006 HOOVER AL 30.80 010732003 WYLAM AL 28.70 060650012 Banning - South Hathaway Street CA 27.60 060651003 Riverside - Magnolia CA 26.80 060711004 Upland CA 26.20 060710005 Lake Gregory - Crestline CA 26.20 060658001 Riverside - Rubidoux CA 26.20 060376012 Santa Clarita CA 26.20 060371201 Reseda CA 24.90 000040203 FOREST HILLS NB 24.30 000041302 BATHURST NB 24.20 000040801 CANTERBURY NB 24.10 060374002 North Long Beach CA 23.80 000051501 Zéphirin QC 22.80 061110009 Piru - Pacific CA 22.40 061112002 Simi Valley - Cochran Street CA 21.60 060731006 Alpine CA 20.90 060371002 Burbank - W. Palm Ave CA 20.60 051191008 ADEQ-DSR AR 20.50 060890007 Anderson CA 20.40 050350005 MARION AR 19.70 010331002 MSHOALS AL 18.10 010731005 MCADORY AL 18.10 000065701 Morrisburg ON 18.10 000061201 Cornwall ON 18.00 010730023 NO. BHAM AL 17.50 000060303 Kingston ON 17.20 000063301 Dorset ON 17.10 060830011 Santa Barbara CA 16.80 010731009 PROVIDENCE AL 16.60 061111004 Ojai - Ojai Ave. CA 16.50 060659001 Lake Elsinore - W. Flint Street CA 16.20 060590007 Anaheim CA 16.10 061113001 El Rio - Rio Mesa School #2 CA 16.10 051190007 PARR AR 15.90 060731002 Escondido CA 15.80 000061104 Peterborough ON 15.70 010735002 PINSON AL 15.50 061110007 Thousand Oaks - Moorpark Road CA 15.30 061070009 Sequoia/Kings Canyon - Ash Mountain CA 15.20 051390006 El Dorado AR 14.70 080310002 Denver - CAMP - 2105 Broadway CO 14.60 060730003 El Cajon - Redwood Ave CA 14.60 060074001 Gridley CA 14.20 080131001 Boulder - CU - 2102 Athens St. CO 14.10 011011002 MONTG AL 13.90 080310025 Denver Animal Shelter - 678 S. Jason St. CO 13.80 000065401 Belleville ON 13.70 010970003 CHICK. AL 13.40 060210002 Willows - E. Laurel Street CA 13.40 000090502 Lethbridge AB 13.20 000061502 Kitchener ON 13.20 000060512 Hamilton Downtown ON 13.00 000090302 Red Deer AB 13.00 000065801 Chatham ON 12.80 010735003 CORNER AL 12.60 060731010 San Diego - Beardsley Street CA 12.60 060731008 Camp Pendleton CA 12.50 000062501 Tiverton ON 12.20 060070002 Chico - Manzanita CA 11.90 080310013 Denver - NJH - 14th Ave. & Albion St. CO 11.80 080410017 Colorado College CO 11.50 000062001 North Bay ON 11.50 000060424 Toronto Downtown ON 11.40 000065301 Port Stanley ON 11.40 000040209 CASTLE ST. SAINT JO NB 11.30 000061402 Brantford ON 11.20 000065001 Barrie ON 11.10 000052301 Saint-Faustin QC 10.80 061130004 Davis CA 10.80 000065201 Parry Sound ON 10.50 000061004 Sarnia ON 10.10 000063701 Grand Bend ON 10.10 000060903 London ON 10.00 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 9.90 040191032 Rose Elementary AZ 9.70 060832011 GOLETA CA 9.70 040191034 Coachline AZ 9.40 000090130 Edmonton Central AB 9.30 040191113 Geronimo AZ 9.20 061072002 Visalia - N. Church Street CA 9.20 000020301 WELLINGTON PE 9.00 000090222 Calgary Northwest AB 8.90 060639901 Quincy BAM CA 8.90 000020104 CHARLOTTETOWN PE 8.70 060792004 Mesa 2 /Nipomo CA 8.60 000090121 Edmonton East AB 8.50 051430005 SPRNGDLE AR 8.10 000090120 Edmonton South AB 7.90 060410003 Point Reyes CA 7.80 080130003 Longmont CO 7.70 040132001 Glendale Community College AZ 7.60 060670006 Sacramento - Del Paso Manor CA 7.40 000040103 FREDERICTON NB 7.30 060610006 Roseville - N.Sunrise/Douglas CA 7.20 061131003 Woodland CA 7.20 060798001 Atascadero CA 7.10 040139812 Durango AZ 7.00 000060709 Sault Ste Marie ON 6.90 060750005 San Francisco - Arkansas Street CA 6.70 000030310 SYDNEY NS 6.60 060990006 Turlock - S. Minaret Street CA 6.30 000094301 Cold Lake South AB 6.20 060670011 Elk Grove CA 6.00 000091901 Caroline AB 5.90 040138005 Estrella AZ 5.60 060670012 Folsom CA 5.50 040134010 Dysart AZ 5.40 060990005 Modesto - 14th Street CA 5.20 060850002 Gilory - 9th Street CA 5.20 000060609 Sudbury ON 4.40 040139998 Vehicle Emissions Laboratory AZ 4.40 040134003 South Phoenix AZ 3.50 000090601 Fort Saskatchewan AB 2.50 000091101 Elk Island AB Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 #coincidences and Corr > 0.5 28.10 060870007 Unknown CA 28.10 060850002 Gilory - 9th Street CA 28.10 060690002 Unknown CA 28.10 060530002 Unknown CA 20.70 061131003 Woodland CA 20.70 061130004 Davis CA 20.70 060970003 Santa Rosa - 5th Street CA 20.70 060953002 Vacaville CA 20.70 060950004 Vallejo - 304 Tuolumne Street CA 20.70 060850005 San Jose - Jackson St. CA 20.70 060811001 Redwood City CA 20.70 060750005 San Francisco - Arkansas Street CA 20.70 060670012 Folsom CA 20.70 060670011 Elk Grove CA 20.70 060670010 Sacramento - T Street CA 20.70 060670006 Sacramento - Del Paso Manor CA 20.70 060610006 Roseville - N.Sunrise/Douglas CA 20.70 060550003 Napa - Jefferson St CA 20.70 060410003 Point Reyes CA 20.70 060410001 San Rafael CA 20.70 060010011 Oakland West CA 20.70 060010007 Livermore - Rincon CA 18.20 000010401 Mount Pearl NF 17.50 060731010 San Diego - Beardsley Street CA 15.60 061113001 El Rio - Rio Mesa School #2 CA 15.60 061111004 Ojai - Ojai Ave. CA 15.60 060832011 GOLETA CA 15.60 060832004 Lompoc H Street CA 15.60 060830011 Santa Barbara CA 12.00 000030310 SYDNEY NS 12.00 000020401 SOUTHAMPTON PE 11.20 040191113 Geronimo AZ 11.20 040191032 Rose Elementary AZ 11.20 040191030 Green Valley AZ 11.00 061072002 Visalia - N. Church Street CA 11.00 060798001 Atascadero CA 11.00 060792004 Mesa 2 /Nipomo CA 11.00 060290014 Bakersfield - 5558 California Ave CA 11.00 060190008 Fresno - 1st Street CA 10.10 040139998 Vehicle Emissions Laboratory AZ 10.10 040139812 Durango AZ 10.10 040138005 Estrella AZ 10.10 040134010 Dysart AZ 10.10 040134003 South Phoenix AZ 10.10 040132001 Glendale Community College AZ 10.10 040130019 West Phoenix AZ 9.50 060650012 Banning - South Hathaway Street CA 8.10 000041302 BATHURST NB 7.70 061112002 Simi Valley - Cochran Street CA 7.70 061110009 Piru - Pacific CA 7.70 061110007 Thousand Oaks - Moorpark Road CA 7.70 060731008 Camp Pendleton CA 7.70 060731002 Escondido CA 7.70 060711004 Upland CA 7.70 060710005 Lake Gregory - Crestline CA 7.70 060659001 Lake Elsinore - W. Flint Street CA 7.70 060658001 Riverside - Rubidoux CA 7.70 060651003 Riverside - Magnolia CA 7.70 060590007 Anaheim CA 7.70 060376012 Santa Clarita CA 7.70 060374002 North Long Beach CA 7.70 060371201 Reseda CA 7.70 060371002 Burbank - W. Palm Ave CA 7.60 000040302 MONCTON NB 7.60 000030701 AYLESFORD MOUNTAIN NS 7.60 000020301 WELLINGTON PE 7.60 000020104 CHARLOTTETOWN PE 7.20 000040209 CASTLE ST. SAINT JO NB 7.20 000040207 SAINT JOHN WEST NB 7.20 000040203 FOREST HILLS NB 7.20 000040103 FREDERICTON NB 7.00 040191034 Coachline AZ 6.70 060731006 Alpine CA 6.70 060730003 El Cajon - Redwood Ave CA 6.70 000061201 Cornwall ON 6.70 000054501 L'Assomption QC 6.70 000054401 Saint-Anicet QC 6.70 000052301 Saint-Faustin QC 5.70 000040901 ST ANDREWS NB 5.70 000040801 CANTERBURY NB 5.40 060990006 Turlock - S. Minaret Street CA 5.40 060990005 Modesto - 14th Street CA 5.40 060431001 Yosemite Village - Visitor Center CA 5.30 000051501 Zéphirin QC 4.40 000065001 Barrie ON 4.40 000061502 Kitchener ON 4.40 000061402 Brantford ON 4.40 000061302 St. Catharines ON 4.40 000060512 Hamilton Downtown ON 4.40 000060424 Toronto Downtown ON 4.30 061070009 Sequoia/Kings Canyon - Ash Mountain CA 4.30 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 4.30 000060204 Windsor Downtown ON 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 3.70 050350005 MARION AR 3.60 061010003 Yuba City CA 3.60 060890007 Anderson CA 3.60 060631007 Chester BAM CA 3.60 060570005 Grass Valley CA 3.60 060210002 Willows - E. Laurel Street CA 3.60 060074001 Gridley CA 3.60 060070002 Chico - Manzanita CA 3.60 051430005 SPRNGDLE AR 3.60 000065801 Chatham ON 3.60 000065301 Port Stanley ON 3.60 000061004 Sarnia ON 3.60 000060903 London ON 3.20 011011002 MONTG AL 2.90 080350004 Chatfield Park - 11500 N. Roxborough Par CO 2.90 080131001 Boulder - CU - 2102 Athens St. CO 2.90 080130003 Longmont CO 2.80 010731009 PROVIDENCE AL 2.80 010731005 MCADORY AL 2.80 010331002 MSHOALS AL 2.80 000063701 Grand Bend ON 2.80 000062501 Tiverton ON 2.70 080310025 Denver Animal Shelter - 678 S. Jason St. CO 2.70 080310013 Denver - NJH - 14th Ave. & Albion St. CO 2.70 080310002 Denver - CAMP - 2105 Broadway CO 2.70 080010006 Commerce City - 7101 Birch St. CO 2.70 000065401 Belleville ON 2.70 000061104 Peterborough ON 2.60 010970003 CHICK. AL 2.10 080770017 Grand Junction - Powell Building CO 2.10 060639901 Quincy BAM CA 2.10 000060104 Ottawa ON 2.00 000090601 Fort Saskatchewan AB 2.00 000090130 Edmonton Central AB 2.00 000090121 Edmonton East AB 2.00 000090120 Edmonton South AB 1.90 000065701 Morrisburg ON 1.90 000060303 Kingston ON 1.80 051390006 El Dorado AR 1.80 051191008 ADEQ-DSR AR 1.80 051190007 PARR AR 1.70 000063301 Dorset ON 1.60 000091901 Caroline AB 1.60 000090302 Red Deer AB 1.60 000090222 Calgary Northwest AB 1.50 000065201 Parry Sound ON 1.50 000062001 North Bay ON 1.50 000060609 Sudbury ON 1.30 080410017 Colorado College CO 1.10 000091101 Elk Island AB 1.10 000060709 Sault Ste Marie ON 0.80 000090502 Lethbridge AB 0.60 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)