| United States |
| 47 | | | Northside Fort Worth Air 85594 |
| 15 | | | Northside Fort Worth Air 160773 |
| 21 | | | Ciencia ciudadana por la Calidad del Aire 50db59 |
| 17 | | | Ciencia ciudadana por la Calidad del Aire 27a3fd |
| 25 | | | SEEN 73066 |
| 22 | | | Washington State Department of Ecology 53 033 0047 |
| 26 | | | SJVAir.com 71944 |
| 3 | Bay Parkway: Saint Athanasius School, Bay Parkway, New Utrecht, Brooklyn, Kings County, New York, New York, 11204, USA | | Citizen Science project sensor.community 96401 |
| 19 | Bayside, Wisconsin: Bayside Middle School, 601, East Ellsworth Lane, Milwaukee River Parkway, Bayside, Milwaukee County, Wisconsin, 53217, USA | | Wisconsin Department Of Natural Resources 55 079 0085 |
| 18 | | | Wisconsin Department Of Natural Resources 55 105 0030 |
| 26 | Brewster: South 3rd Avenue, Brewster, Okanogan County, Washington, 98812, USA | | Washington State Department of Ecology 53 047 9990 |
| 0 | Brushy Creek Massai: Brushy Creek Road, Oak Brook, Cedar Park, Williamson County, Texas, 78613, USA | | AirNet - aiqcn.org - waqi.info 100275 |
| 16 | Burbank-Maple St: West Maple Street, Burbank, Walla Walla County, Washington, 99323, USA | | Washington State Department of Ecology 53 071 0006 |
| 53 | Cashmere: Foster Street, Cashmere, Chelan County, Washington, 98815, USA | | Washington State Department of Ecology aqs396 |
| 15 | Cathlamet: Cathlamet, Wahkiakum County, Washington, 98612, USA | | Washington State Department of Ecology 53 069 9990 |
| 24 | Cecil Ave (DUESD): Cecil Avenue Junior High School, 13th Avenue, Delano, Kern County, California, 93215, USA | | SJVAir.com 167404 |
| 56 | | | SJVAir.com 156617 |
| 4 | Chiswell Road: Chiswell Road, Grafton, Worcester County, Massachusetts, 01536, USA | | Citizen Science project sensor.community 87877 |
| 12 | Cle Elum: Cle Elum, Kittitas County, Washington, 98922, USA | | Washington State Department of Ecology 53 037 0180 |
| 17 | | | Wisconsin Department Of Natural Resources 55 021 0015 |
| 8 | Corry Street: Corry Street, Schenk-Atwood-Starkweather-Yahara, Madison, Dane County, Wisconsin, 53704, USA | | Citizen Science project sensor.community 79001 |
| 53 | Daleridge: Baptiste Way, La Canada Flintridge, Los Angeles County, California, 91011, USA | | Twoº & Rising 152046 |
| 8 | Davenport: Logan Street, Davenport, Lincoln County, Washington, 99122, USA | | Washington State Department of Ecology aqs388 |
| 17 | Des Moines-S 240th St: Bldg 8 Student Union, 2400, South 240th Street, Des Moines, King County, Washington, 98198, USA | | Washington State Department of Ecology aqs468 |
| 14 | | | SEEN 73009 |
| 5 | | | Walter Gregg 80519 |
| 2 | Dry Fork Grogu: Reprise Cove, Round Rock, Williamson County, Texas, 78681, USA | | AirNet - aiqcn.org - waqi.info 100290 |
| 0 | | | Citizen Science project sensor.community 83626 |
| 47 | | | Washington State Department of Ecology 53 007 9989 |
| 18 | | | Wisconsin Department Of Natural Resources 55 127 0006 |
| 12 | Ellensburg-Discovery Hall: Central Washington University, 400, East University Way, Ellensburg, Kittitas County, Washington, 98926, USA | | Washington State Department of Ecology 53 037 9999 |
| 10 | | | Washington State Department of Ecology 53 037 9998 |
| 11 | | | Washington State Department of Ecology 53 037 9997 |
| 29 | Entiat: Kinzel Street, Entiat, Chelan County, Washington, 98822, USA | | Washington State Department of Ecology 53 007 9992 |
| 12 | Enumclaw-Mud Mtn.: Mud Mountain Road Southeast, Enumclaw, King County, Washington, 98022, USA | | Washington State Department of Ecology 53 033 0023 |
| 24 | Everett-12th St: 12th Street, Everett, Snohomish County, Washington, 98201, USA | | Washington State Department of Ecology aqs492 |
| 37 | | | Washington State Department of Ecology 53 061 0022 |
| 18 | | | Washington State Department of Ecology aqs466 |
| 13 | | | SEEN 87442 |
| 3 | | | SEEN 87131 |
| 17 | | | Washington State Department of Ecology aqs497 |
| 31 | | | Washington State Department of Ecology 53 005 9999 |
| 16 | | | Wisconsin Department Of Natural Resources 55 039 0006 |
| 50 | | | Washington State Department of Ecology aqs469 |
| 16 | George: Washington Way North, Quincy, Grant County, Washington, 98824, USA | | Washington State Department of Ecology 53 025 9990 |
| 16 | | | Washington State Department of Ecology 53 039 9991 |
| 19 | | | Wisconsin Department Of Natural Resources 55 089 0008 |
| 17 | | | Wisconsin Department Of Natural Resources 55 009 0026 |
| 21 | | | SJVAir.com 167380 |
| 23 | | | Wisconsin Department Of Natural Resources 55 053 2002 |
| 25 | | | Wisconsin Department Of Natural Resources 55 081 2001 |
| 25 | Hunts Point Road: Hunts Point Road, Bellevue, King County, Washington, 98004, USA | | Mike Koss 78140 |
| 24 | Ilwaco: Brumbach Street, Ilwaco, Pacific County, Washington, 98624, USA | | Washington State Department of Ecology aqs501 |
| 19 | | | Washington State Department of Ecology 53 033 0010 |
| 16 | | | Wisconsin Department Of Natural Resources 55 055 0009 |
| 18 | Kelso: Old Pacific Highway South, Kelso, Cowlitz County, Washington, 98626, USA | | Washington State Department of Ecology aqs494 |
| 14 | | | Washington State Department of Ecology 53 005 0003 |
| 20 | | | Wisconsin Department Of Natural Resources 55 059 0025 |
| 18 | | | Wisconsin Department Of Natural Resources 55 061 0002 |
| 28 | | | Wisconsin Department Of Natural Resources 55 073 0012 |
| 35 | | | SJVAir.com 70027 |
| 13 | | | SJVAir.com 67117 |
| 68 | | | SJVAir.com 70023 |
| 17 | | | Wisconsin Department Of Natural Resources 55 071 0007 |
| 6 | | | Washington State Department of Ecology 53 025 9999 |
| 13 | | | SEEN 61727 |
| 20 | | | Wisconsin Department Of Natural Resources 55 079 0068 |
| 35 | Mossyrock: Mossyrock Police, 231, East State Street, Mossyrock, Lewis County, Washington, 98564, USA | | Washington State Department of Ecology aqs498 |
| 12 | | | Washington State Department of Ecology 53 077 9998 |
| 22 | | | Washington State Department of Ecology 53 053 0012 |
| 0 | NE 196th Street: NE 196th Street, Seattle, King County, Washington, 98155, USA | | Citizen Science project sensor.community 81064 |
| 8 | NWCAA - BPS 2: Pacific Street, Bellingham, Whatcom County, Washington, 98229, USA | | Northwest Clean Air Agency 58249 |
| 8 | | | Northwest Clean Air Agency 87741 |
| 17 | Newport, Wisconsin: Service Building, Newport Park Road, Town of Liberty Grove, Door County, Wisconsin, 54210, USA | | Wisconsin Department Of Natural Resources 55 029 0004 |
| 48 | Newport-Calispel: West 1st Street, Newport, Pend Oreille County, Washington, 99156, USA | | Washington State Department of Ecology 53 051 0008 |
| 21 | North 21st Street: North 21st Street, Fairmount, Philadelphia, Philadelphia County, Pennsylvania, 19130, USA | | Citizen Science project sensor.community 71749 |
| 10 | | | SEEN 62065 |
| 30 | Nueva Vista (DUESD): Valle Vista School, Belmont Street, Delano, Kern County, California, 93215, USA | | SJVAir.com 167400 |
| 8 | Otley Drive: Otley Drive, Huntington, Fairfax County, Virginia, 22303, USA | | Citizen Science project sensor.community 47808 |
| 21 | PSI-329: West San Marcos Boulevard, San Marcos, San Diego County, California, 92078, USA | | RB Power Design 86792 |