Correlation between RAQMS!dG!n and AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 0.70 121130015 Woodlawn FL 0.68 131210055 Confederate Ave GA 0.67 000091101 Elk Island AB 0.64 000090227 Calgary Central AB 0.64 000090218 Calgary East AB 0.63 000062501 Tiverton ON 0.62 000091901 Caroline AB 0.60 131350002 Gwinnett Tech GA 0.60 010030010 FAIRHOPE AL 0.60 000090302 Red Deer AB 0.59 011011002 MONTG AL 0.59 000094301 Cold Lake South AB 0.59 000090222 Calgary Northwest AB 0.58 131510002 McDonough GA 0.58 010970003 CHICK. AL 0.58 000063701 Grand Bend ON 0.57 130890002 South Dekalb GA 0.57 120330004 Ellyson Industrial Park FL 0.56 130590002 Athens FS # 7 GA 0.55 120573002 SYDNEY FL 0.54 132150008 Columbus Airport GA 0.53 132230003 Yorkville GA 0.52 120590004 Bonifay FL #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 0.87 121130015 Woodlawn FL 0.82 132230003 Yorkville GA 0.81 132150008 Columbus Airport GA 0.81 131350002 Gwinnett Tech GA 0.81 131210055 Confederate Ave GA 0.81 010731010 LEEDS AL 0.80 010970003 CHICK. AL 0.79 131510002 McDonough GA 0.79 010030010 FAIRHOPE AL 0.79 000090601 Fort Saskatchewan AB 0.78 130890002 South Dekalb GA 0.76 011011002 MONTG AL 0.75 000091101 Elk Island AB 0.73 131530001 Warner Robins GA 0.73 130590002 Athens FS # 7 GA 0.73 000090227 Calgary Central AB 0.72 132950002 Rossville GA 0.72 120590004 Bonifay FL 0.72 000090218 Calgary East AB 0.72 000062501 Tiverton ON 0.70 000094301 Cold Lake South AB 0.70 000090302 Red Deer AB 0.69 000090222 Calgary Northwest AB 0.68 120573002 SYDNEY FL 0.68 010731005 MCADORY AL 0.68 000091901 Caroline AB 0.67 120050006 St. Andrews Park FL 0.65 010731009 PROVIDENCE AL 0.65 000060104 Ottawa ON 0.63 150031004 SAND ISLAND 2 - ANUENUE FISHERIES HI 0.63 130770002 NEWNAN GA 0.62 150011012 Kona HI 0.62 131390003 Gainesville GA 0.61 060376012 Santa Clarita CA 0.61 010730023 NO. BHAM AL 0.61 000090120 Edmonton South AB 0.61 000063701 Grand Bend ON 0.60 120730012 Tallahassee Community College FL 0.58 060731002 Escondido CA 0.58 010735002 PINSON AL 0.57 010732003 WYLAM AL 0.55 132450091 AUGUSTA GA 0.55 000065201 Parry Sound ON 0.54 130210012 Macon GA 0.54 040191034 Coachline AZ 0.54 040139998 Vehicle Emissions Laboratory AZ 0.51 000063301 Dorset ON 0.51 000060609 Sudbury ON 0.50 060651003 Riverside - Magnolia CA 0.50 051390006 El Dorado AR #coincidences 10-30 and Corr > 0.5 0.54 000090130 Edmonton Central AB Mean daytime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 11.30 061113001 El Rio - Rio Mesa School #2 CA 11.30 060832004 Lompoc H Street CA 11.00 061111004 Ojai - Ojai Ave. CA 10.70 000020401 SOUTHAMPTON PE 9.00 060953002 Vacaville CA 8.60 060959999 Rio Vista CA 8.30 060550003 Napa - Jefferson St CA 8.20 000030310 SYDNEY NS 7.80 060950004 Vallejo - 304 Tuolumne Street CA 7.60 060670006 Sacramento - Del Paso Manor CA 7.60 060010007 Livermore - Rincon CA 7.40 060670011 Elk Grove CA 7.20 060670012 Folsom CA 6.50 061131003 Woodland CA 6.40 061110009 Piru - Pacific CA 6.30 060010011 Oakland West CA 6.10 060012004 Berkeley CA 5.50 060731010 San Diego - Beardsley Street CA 5.40 000065001 Barrie ON 4.70 090050005 Cornwall CT 4.40 061110007 Thousand Oaks - Moorpark Road CA 4.30 060850005 San Jose - Jackson St. CA 4.30 060610006 Roseville - N.Sunrise/Douglas CA 3.40 150012017 Mountain View HI 3.40 150011006 Hilo HI 3.40 090032006 East Hartford - High Street CT 3.30 090011123 Danbury CT 3.00 060570005 Grass Valley CA 2.90 150030010 Kapolei HI 2.60 090110124 Groton Fort Griswold CT 2.60 061112002 Simi Valley - Cochran Street CA 2.30 000051501 Zéphirin QC 2.00 000061402 Brantford ON 2.00 000061302 St. Catharines ON 2.00 000060424 Toronto Downtown ON 1.90 000065401 Belleville ON 1.80 000061201 Cornwall ON 1.70 060639901 Quincy BAM CA 1.60 090050004 Thomaston CT 1.60 000062001 North Bay ON 1.60 000061104 Peterborough ON 1.60 000060512 Hamilton Downtown ON 1.30 000020104 CHARLOTTETOWN PE 1.20 000065701 Morrisburg ON 1.20 000065201 Parry Sound ON 1.20 000040103 FREDERICTON NB 1.00 000065301 Port Stanley ON 1.00 000020301 WELLINGTON PE 0.80 000061502 Kitchener ON 0.70 000065801 Chatham ON 0.50 040138005 Estrella AZ #coincidences 10-30 and Corr > 0.5 5.90 060410003 Point Reyes CA 3.40 060798001 Atascadero CA Mean nighttime bias of RAQMS!dG!n from AIRNow 1-hr surface PM2.5 #coincidences >30 and Corr > 0.5 12.80 060832004 Lompoc H Street CA 12.40 061111004 Ojai - Ojai Ave. CA 11.80 061113001 El Rio - Rio Mesa School #2 CA 9.40 060830011 Santa Barbara CA 9.30 060670012 Folsom CA 8.90 060010007 Livermore - Rincon CA 8.50 060959999 Rio Vista CA 8.00 060550003 Napa - Jefferson St CA 7.80 060950004 Vallejo - 304 Tuolumne Street CA 7.80 060012004 Berkeley CA 7.60 060670006 Sacramento - Del Paso Manor CA 7.40 060670010 Sacramento - T Street CA 7.30 061130004 Davis CA 7.20 060731010 San Diego - Beardsley Street CA 7.20 060670011 Elk Grove CA 7.00 060010011 Oakland West CA 6.70 060953002 Vacaville CA 6.60 061131003 Woodland CA 6.60 000020401 SOUTHAMPTON PE 5.40 060850005 San Jose - Jackson St. CA 4.60 060610006 Roseville - N.Sunrise/Douglas CA 3.80 060570005 Grass Valley CA 3.80 000065001 Barrie ON 3.40 150030010 Kapolei HI 3.20 000061302 St. Catharines ON 3.00 000060424 Toronto Downtown ON 2.90 150012017 Mountain View HI 2.90 090011123 Danbury CT 2.80 000061502 Kitchener ON 2.80 000030310 SYDNEY NS 2.40 150011006 Hilo HI 2.40 000060609 Sudbury ON 2.30 090050004 Thomaston CT 2.30 000062001 North Bay ON 2.20 100032004 MLK DE 2.10 000060512 Hamilton Downtown ON 2.00 000065801 Chatham ON 2.00 000062501 Tiverton ON 2.00 000051501 Zéphirin QC 1.90 000065401 Belleville ON 1.90 000063701 Grand Bend ON 1.90 000061402 Brantford ON 1.80 090050005 Cornwall CT 1.80 060792004 Mesa 2 /Nipomo CA 1.80 000060903 London ON 1.60 060639901 Quincy BAM CA 1.60 000065301 Port Stanley ON 1.60 000061104 Peterborough ON 1.50 000061201 Cornwall ON 1.40 000063301 Dorset ON 1.20 000065201 Parry Sound ON 1.10 090032006 East Hartford - High Street CT 1.10 061110009 Piru - Pacific CA 1.10 000060104 Ottawa ON 1.10 000020104 CHARLOTTETOWN PE 1.00 000060303 Kingston ON 0.90 090110124 Groton Fort Griswold CT 0.90 061072002 Visalia - N. Church Street CA 0.80 150031001 Honolulu HI 0.80 090090027 New Haven - Criscuolo Park CT 0.80 000065701 Morrisburg ON 0.60 000040209 CASTLE ST. SAINT JO NB 0.60 000020301 WELLINGTON PE #coincidences 10-30 and Corr > 0.5 6.20 060410003 Point Reyes CA 4.60 060798001 Atascadero CA Mean observed daytime surface PM2.5 (6-hourly) #coincidences >30 and Corr > 0.5 385.40 060431001 Yosemite Village - Visitor Center CA 318.50 120310077 Sheffield Elementary School FL 86.80 000054401 Saint-Anicet QC 84.20 000090121 Edmonton East AB 83.80 061130004 Davis CA 66.30 000090302 Red Deer AB 60.00 051190007 PARR AR 55.30 000091101 Elk Island AB 52.70 000090120 Edmonton South AB 48.20 040191032 Rose Elementary AZ 47.40 000091901 Caroline AB 42.70 000090218 Calgary East AB 40.80 000090227 Calgary Central AB 40.70 060190008 Fresno - 1st Street CA 36.40 060890007 Anderson CA 34.70 000090222 Calgary Northwest AB 34.40 060830011 Santa Barbara CA 34.30 060670010 Sacramento - T Street CA 26.50 000090601 Fort Saskatchewan AB 26.20 000090502 Lethbridge AB 26.00 000094301 Cold Lake South AB 25.60 131390003 Gainesville GA 22.80 060310004 Corcoran CA 22.60 090090027 New Haven - Criscuolo Park CT 22.40 060371103 Los Angeles - N. Main Street CA 21.70 060650012 Banning - South Hathaway Street CA 21.10 060371002 Burbank - W. Palm Ave CA 20.60 060731008 Camp Pendleton CA 20.20 080350004 Chatfield Park - 11500 N. Roxborough Par CO 20.10 130770002 NEWNAN GA 20.00 060658001 Riverside - Rubidoux CA 19.60 060590007 Anaheim CA 19.50 010030010 FAIRHOPE AL 19.20 150011012 Kona HI 19.00 051390006 El Dorado AR 19.00 050350005 MARION AR 18.70 132950002 Rossville GA 18.20 060371201 Reseda CA 17.90 100032004 MLK DE 17.90 060730003 El Cajon - Redwood Ave CA 17.80 130890002 South Dekalb GA 17.80 010970003 CHICK. AL 17.60 060659001 Lake Elsinore - W. Flint Street CA 17.60 060250005 Calexico - Ethel Street CA 17.40 131210055 Confederate Ave GA 17.40 060374002 North Long Beach CA 17.40 010731010 LEEDS AL 17.30 132150008 Columbus Airport GA 17.30 060731002 Escondido CA 17.20 060731010 San Diego - Beardsley Street CA 17.10 000061004 Sarnia ON 17.00 060710005 Lake Gregory - Crestline CA 16.90 000040203 FOREST HILLS NB 16.70 060370016 Glendora - Laurel CA 16.70 010331002 MSHOALS AL 16.60 130590002 Athens FS # 7 GA 16.60 010732003 WYLAM AL 16.50 060651003 Riverside - Magnolia CA 16.50 010731005 MCADORY AL 16.40 110010043 McMillan Reservoir DC 16.30 132450091 AUGUSTA GA 16.30 132230003 Yorkville GA 16.20 131510002 McDonough GA 16.20 060376012 Santa Clarita CA 16.20 051191008 ADEQ-DSR AR 16.20 010732006 HOOVER AL 16.10 120861016 Miami Fire Station #5 FL 16.10 060290014 Bakersfield - 5558 California Ave CA 15.80 131350002 Gwinnett Tech GA 15.70 010730023 NO. BHAM AL 15.60 061070009 Sequoia/Kings Canyon - Ash Mountain CA 15.40 131530001 Warner Robins GA 15.30 130511002 Savannah L&A GA 15.20 010731009 PROVIDENCE AL 15.10 131850003 Valdosta GA 14.80 010735003 CORNER AL 14.70 120573002 SYDNEY FL 14.50 011011002 MONTG AL 14.30 061072002 Visalia - N. Church Street CA 14.30 040191113 Geronimo AZ 14.10 120570030 PCEIA3 FL 14.00 000060204 Windsor Downtown ON 13.90 051430005 SPRNGDLE AR 13.90 010735002 PINSON AL 13.80 130210012 Macon GA 13.70 060850005 San Jose - Jackson St. CA 13.20 061112002 Simi Valley - Cochran Street CA 13.10 060610006 Roseville - N.Sunrise/Douglas CA 13.00 000054703 Bécancour (Aréna) QC 12.80 120866001 Homestead Fire Station #16 FL 12.70 120330004 Ellyson Industrial Park FL 12.60 121152002 Jackson Road FL 12.50 121056006 Fl. Baptist Children's Home FL 12.50 120470015 White Springs FL 12.50 000054501 L'Assomption QC 12.40 090092123 Waterbury CT 12.30 060792004 Mesa 2 /Nipomo CA 12.30 000041302 BATHURST NB 12.20 060012004 Berkeley CA 12.00 120590004 Bonifay FL 11.90 120830003 YMC FL 11.90 000061502 Kitchener ON 11.90 000060512 Hamilton Downtown ON 11.90 000050801 Ursulines QC 11.70 060010011 Oakland West CA 11.60 060070002 Chico - Manzanita CA 11.50 000061302 St. Catharines ON 11.40 150012016 Pahala HI 11.40 120210004 Laurel Oaks Elementary FL 11.40 090110124 Groton Fort Griswold CT 11.40 061110007 Thousand Oaks - Moorpark Road CA 11.40 000061402 Brantford ON 11.40 000060424 Toronto Downtown ON 11.30 061131003 Woodland CA 11.30 000063701 Grand Bend ON 11.20 090050004 Thomaston CT 11.20 060990005 Modesto - 14th Street CA 10.90 121130015 Woodlawn FL 10.90 120710005 Winkler Pump Station FL 10.90 060670012 Folsom CA 10.80 000030701 AYLESFORD MOUNTAIN NS 10.70 120730012 Tallahassee Community College FL 10.70 120571065 gandy FL 10.70 080310025 Denver Animal Shelter - 678 S. Jason St. CO 10.60 120952002 Lake Isle Estates FL 10.60 090032006 East Hartford - High Street CT 10.60 060210002 Willows - E. Laurel Street CA 10.60 000060903 London ON 10.50 060074001 Gridley CA 10.40 121030018 Azalea FL 10.40 060670011 Elk Grove CA 10.40 000062501 Tiverton ON 10.40 000052301 Saint-Faustin QC 10.30 120090011 Fay Park FL 10.20 150031004 SAND ISLAND 2 - ANUENUE FISHERIES HI 10.20 121035002 John A. Chesnut Sr. Park FL 10.20 120090007 Melbourne FL 10.20 060950004 Vallejo - 304 Tuolumne Street CA 10.10 060571001 Truckee BAM CA 10.10 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 10.00 060010007 Livermore - Rincon CA 9.90 080010006 Commerce City - 7101 Birch St. CO 9.90 061111004 Ojai - Ojai Ave. CA 9.80 120111002 DAVIE FL 9.80 061110009 Piru - Pacific CA 9.80 060670006 Sacramento - Del Paso Manor CA 9.80 040139812 Durango AZ 9.70 121275002 Blind Services; 1185-A Dunn Ave FL 9.70 060550003 Napa - Jefferson St CA 9.60 080310013 Denver - NJH - 14th Ave. & Albion St. CO 9.60 000040209 CASTLE ST. SAINT JO NB 9.50 060959999 Rio Vista CA 9.50 000065801 Chatham ON 9.50 000040207 SAINT JOHN WEST NB 9.40 120310100 Mayo Clinic FL 9.40 061113001 El Rio - Rio Mesa School #2 CA 9.40 060832004 Lompoc H Street CA 9.20 121150013 Bee Ridge FL 9.20 040191034 Coachline AZ 9.20 000065301 Port Stanley ON 9.10 060953002 Vacaville CA 9.00 120990009 Royal Palm Beach FL 8.90 081230006 Greeley Hospital CO 8.80 120050006 St. Andrews Park FL 8.80 000060303 Kingston ON 8.50 090011123 Danbury CT 8.50 000065001 Barrie ON 8.50 000060709 Sault Ste Marie ON 8.40 120013011 Payne's Prarie FL 8.40 000061201 Cornwall ON 8.40 000040901 ST ANDREWS NB 8.30 080310002 Denver - CAMP - 2105 Broadway CO 8.20 000030310 SYDNEY NS 7.90 000060609 Sudbury ON 7.80 040191030 Green Valley AZ 7.80 000040302 MONCTON NB 7.50 000063301 Dorset ON 7.40 040139998 Vehicle Emissions Laboratory AZ 7.10 040134010 Dysart AZ 7.10 000061104 Peterborough ON 7.00 150031001 Honolulu HI 7.00 060570005 Grass Valley CA 7.00 000020301 WELLINGTON PE 6.90 090050005 Cornwall CT 6.90 000065401 Belleville ON 6.80 060271023 Bishop Paiute Tribe-CA CA 6.70 000060104 Ottawa ON 6.60 000065701 Morrisburg ON 6.50 000065201 Parry Sound ON 6.40 040130019 West Phoenix AZ 6.30 000100010 Creston PC School BC 6.20 040134003 South Phoenix AZ 6.10 000062001 North Bay ON 6.10 000040103 FREDERICTON NB 5.90 080770017 Grand Junction - Powell Building CO 5.90 000051501 Zéphirin QC 5.80 000020104 CHARLOTTETOWN PE 5.40 000020401 SOUTHAMPTON PE 5.20 040138005 Estrella AZ 4.90 060639901 Quincy BAM CA 4.50 150012017 Mountain View HI 4.40 150030010 Kapolei HI 4.20 150011006 Hilo HI #coincidences 10-30 and Corr > 0.5 78.70 000090130 Edmonton Central AB 13.40 120230002 Lake City FL 13.20 061010003 Yuba City CA 10.90 060410003 Point Reyes CA 9.70 060798001 Atascadero CA 9.50 120310098 Mandarin FL Mean observed cloudiness (MODIS COT) RAQMS!dG!n 18Z yesterday surface PM2.5 #coincidences and Corr > 0.5 20.50 000030310 SYDNEY NS 18.90 061113001 El Rio - Rio Mesa School #2 CA 18.90 061111004 Ojai - Ojai Ave. CA 18.90 060832004 Lompoc H Street CA 18.90 060830011 Santa Barbara CA 18.90 060731010 San Diego - Beardsley Street CA 17.50 120090011 Fay Park FL 17.50 120090007 Melbourne FL 16.30 051390006 El Dorado AR 16.30 051191008 ADEQ-DSR AR 16.30 051190007 PARR AR 16.20 050350005 MARION AR 14.70 120590004 Bonifay FL 14.70 120050006 St. Andrews Park FL 14.60 061072002 Visalia - N. Church Street CA 14.60 060798001 Atascadero CA 14.60 060792004 Mesa 2 /Nipomo CA 14.60 060310004 Corcoran CA 14.60 060290014 Bakersfield - 5558 California Ave CA 14.60 060190008 Fresno - 1st Street CA 14.40 132950002 Rossville GA 14.40 132230003 Yorkville GA 14.40 010735003 CORNER AL 14.40 010735002 PINSON AL 14.40 010732006 HOOVER AL 14.40 010732003 WYLAM AL 14.40 010731010 LEEDS AL 14.40 010730023 NO. BHAM AL 13.50 132150008 Columbus Airport GA 13.50 131530001 Warner Robins GA 13.50 130210012 Macon GA 12.90 010731009 PROVIDENCE AL 12.90 010731005 MCADORY AL 12.90 010331002 MSHOALS AL 12.60 000020401 SOUTHAMPTON PE 12.10 011011002 MONTG AL 11.60 061131003 Woodland CA 11.60 061130004 Davis CA 11.60 060959999 Rio Vista CA 11.60 060953002 Vacaville CA 11.60 060950004 Vallejo - 304 Tuolumne Street CA 11.60 060850005 San Jose - Jackson St. CA 11.60 060670012 Folsom CA 11.60 060670011 Elk Grove CA 11.60 060670010 Sacramento - T Street CA 11.60 060670006 Sacramento - Del Paso Manor CA 11.60 060610006 Roseville - N.Sunrise/Douglas CA 11.60 060550003 Napa - Jefferson St CA 11.60 060410003 Point Reyes CA 11.60 060012004 Berkeley CA 11.60 060010011 Oakland West CA 11.60 060010007 Livermore - Rincon CA 11.50 150012017 Mountain View HI 11.50 150012016 Pahala HI 11.50 150011012 Kona HI 11.50 150011006 Hilo HI 11.50 131510002 McDonough GA 11.50 131390003 Gainesville GA 11.50 131350002 Gwinnett Tech GA 11.50 131210055 Confederate Ave GA 11.50 130890002 South Dekalb GA 11.50 130770002 NEWNAN GA 11.50 130590002 Athens FS # 7 GA 10.90 000010401 Mount Pearl NF 10.60 131850003 Valdosta GA 10.60 120730012 Tallahassee Community College FL 10.50 000063701 Grand Bend ON 10.50 000062501 Tiverton ON 10.30 130511002 Savannah L&A GA 9.60 121152002 Jackson Road FL 9.60 121150013 Bee Ridge FL 9.60 121056006 Fl. Baptist Children's Home FL 9.60 121035002 John A. Chesnut Sr. Park FL 9.60 121030018 Azalea FL 9.60 120952002 Lake Isle Estates FL 9.60 120573002 SYDNEY FL 9.60 120571065 gandy FL 9.60 120570030 PCEIA3 FL 9.60 061112002 Simi Valley - Cochran Street CA 9.60 061110009 Piru - Pacific CA 9.60 061110007 Thousand Oaks - Moorpark Road CA 9.60 060731008 Camp Pendleton CA 9.60 060731002 Escondido CA 9.60 060710005 Lake Gregory - Crestline CA 9.60 060659001 Lake Elsinore - W. Flint Street CA 9.60 060658001 Riverside - Rubidoux CA 9.60 060651003 Riverside - Magnolia CA 9.60 060590007 Anaheim CA 9.60 060376012 Santa Clarita CA 9.60 060374002 North Long Beach CA 9.60 060371201 Reseda CA 9.60 060371103 Los Angeles - N. Main Street CA 9.60 060371002 Burbank - W. Palm Ave CA 9.60 060370016 Glendora - Laurel CA 9.10 121130015 Woodlawn FL 9.10 120330004 Ellyson Industrial Park FL 9.10 010970003 CHICK. AL 9.10 010030010 FAIRHOPE AL 8.50 132450091 AUGUSTA GA 8.50 121275002 Blind Services; 1185-A Dunn Ave FL 8.50 120830003 YMC FL 8.50 120470015 White Springs FL 8.50 120310100 Mayo Clinic FL 8.50 120310098 Mandarin FL 8.50 120310077 Sheffield Elementary School FL 8.50 120230002 Lake City FL 8.50 120013011 Payne's Prarie FL 7.40 090110124 Groton Fort Griswold CT 7.40 090090027 New Haven - Criscuolo Park CT 7.40 090032006 East Hartford - High Street CT 7.20 100032004 MLK DE 7.20 060990005 Modesto - 14th Street CA 7.20 060431001 Yosemite Village - Visitor Center CA 6.80 000065001 Barrie ON 6.80 000061502 Kitchener ON 6.80 000061402 Brantford ON 6.80 000061302 St. Catharines ON 6.80 000060512 Hamilton Downtown ON 6.80 000060424 Toronto Downtown ON 6.70 090092123 Waterbury CT 6.70 090050005 Cornwall CT 6.70 090050004 Thomaston CT 6.70 090011123 Danbury CT 6.70 040139998 Vehicle Emissions Laboratory AZ 6.70 040139812 Durango AZ 6.70 040138005 Estrella AZ 6.70 040134010 Dysart AZ 6.70 040134003 South Phoenix AZ 6.70 040130019 West Phoenix AZ 6.20 000065701 Morrisburg ON 6.20 000060303 Kingston ON 6.10 000065401 Belleville ON 6.10 000061104 Peterborough ON 5.70 060731006 Alpine CA 5.70 060730003 El Cajon - Redwood Ave CA 5.70 060250005 Calexico - Ethel Street CA 5.60 060650012 Banning - South Hathaway Street CA 5.60 040191034 Coachline AZ 5.50 051430005 SPRNGDLE AR 5.40 000065801 Chatham ON 5.40 000065301 Port Stanley ON 5.40 000061004 Sarnia ON 5.40 000060903 London ON 5.30 110010043 McMillan Reservoir DC 5.30 000100010 Creston PC School BC 5.00 150031004 SAND ISLAND 2 - ANUENUE FISHERIES HI 5.00 150031001 Honolulu HI 5.00 150030010 Kapolei HI 4.90 000061201 Cornwall ON 4.90 000054703 Bécancour (Aréna) QC 4.90 000054501 L'Assomption QC 4.90 000054401 Saint-Anicet QC 4.90 000052301 Saint-Faustin QC 4.90 000051501 Zéphirin QC 4.90 000050801 Ursulines QC 4.60 061010003 Yuba City CA 4.60 060890007 Anderson CA 4.60 060570005 Grass Valley CA 4.60 060210002 Willows - E. Laurel Street CA 4.60 060074001 Gridley CA 4.60 060070002 Chico - Manzanita CA 4.50 120710005 Winkler Pump Station FL 4.50 120210004 Laurel Oaks Elementary FL 4.40 120990009 Royal Palm Beach FL 4.40 120866001 Homestead Fire Station #16 FL 4.40 120861016 Miami Fire Station #5 FL 4.40 120111002 DAVIE FL 4.30 061070009 Sequoia/Kings Canyon - Ash Mountain CA 4.30 060271018 Lone Pine Paiute/Shoshone Tribe-CA CA 4.20 000060104 Ottawa ON 4.00 000090601 Fort Saskatchewan AB 4.00 000090130 Edmonton Central AB 4.00 000090121 Edmonton East AB 4.00 000090120 Edmonton South AB 4.00 000060204 Windsor Downtown ON 4.00 000040901 ST ANDREWS NB 4.00 000040801 CANTERBURY NB 3.90 000063301 Dorset ON 3.60 080770017 Grand Junction - Powell Building CO 3.50 000091901 Caroline AB 3.50 000090302 Red Deer AB 3.50 000090227 Calgary Central AB 3.50 000090222 Calgary Northwest AB 3.50 000090218 Calgary East AB 3.50 000065201 Parry Sound ON 3.50 000062001 North Bay ON 3.50 000060609 Sudbury ON 3.30 000041302 BATHURST NB 3.30 000040209 CASTLE ST. SAINT JO NB 3.30 000040207 SAINT JOHN WEST NB 3.30 000040203 FOREST HILLS NB 3.30 000040103 FREDERICTON NB 3.00 000090502 Lethbridge AB 2.80 000040302 MONCTON NB 2.80 000030701 AYLESFORD MOUNTAIN NS 2.80 000020301 WELLINGTON PE 2.80 000020104 CHARLOTTETOWN PE 2.70 081230006 Greeley Hospital CO 2.70 080350004 Chatfield Park - 11500 N. Roxborough Par CO 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 080131001 Boulder - CU - 2102 Athens St. CO 2.70 080130003 Longmont CO 2.70 080010006 Commerce City - 7101 Birch St. CO 2.30 000060709 Sault Ste Marie ON 2.20 060639901 Quincy BAM CA 2.20 060571001 Truckee BAM CA 2.00 000091101 Elk Island AB 1.70 060271023 Bishop Paiute Tribe-CA CA 1.40 000094301 Cold Lake South AB 1.10 040191113 Geronimo AZ 1.10 040191032 Rose Elementary AZ 1.10 040191030 Green Valley AZ AIRNow 18Z yesterday 1-hr surface PM2.5 AIRNow yesterday maximum 1-hr surface PM2.5 Yesterday observed cloudiness (MODIS COT)