March 23, 2026

AQS Reference Table

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To sort on a column, click the column header. That column will be (subtly) highlighted. Particularly useful is the search box at the top of the table on the right. Separate mulitiple search terms with a space. Search looks across all columns in the table.

Downoad a csv version: monitors_without_certifying_agency.csv

Region	Monitor ID	State Name	County Name	CBSA	Last Sample Date	Monitor Close Date	NAAQS Primary Monitor	Monitor Type	PQAO Code	PQAO	PQAO Contact	Contact Phone	Contact Email Address	Reporting Agency
02	72-123-0004-42401-2	Puerto Rico	Salinas	Coco, PR	2025-12-31 00:00:00 -0400	2025-12-31 23:59:59 -0400		SLAMS	0889	Puerto Rico Environmental Quality Board	Lucia Fernandez-Fontan	(787) 767-8181 x2370	LuciaFernandez@jca.pr.gov	Puerto Rico Environmental Quality Board
03	24-033-0030-42401-2	Maryland	Prince George's	Washington-Arlington-Alexandria, DC-VA-MD-WV	2025-12-31 00:00:00 -0400			SLAMS	1002	Maryland Department of the Environment	Colleen Williams	410-537-4412	colleen.williams@maryland.gov	Maryland Department of the Environment
04	12-017-0006-42401-5	Florida	Citrus	Homosassa Springs, FL	2025-12-31 00:00:00 -0400			SLAMS	1328	Florida Department of Environmental Protection (FDEP)	Daisy Anderson		Daisy.Anderson@dep.state.fl.us	Florida Department of Environmental Protection (FDEP)
04	12-105-6005-42401-5	Florida	Polk	Lakeland-Winter Haven, FL	2025-12-31 00:00:00 -0400			SLAMS	1328	Florida Department of Environmental Protection (FDEP)	Daisy Anderson		Daisy.Anderson@dep.state.fl.us	Florida Dept of Environmental Protection, Southwest District
05	27-037-0020-42401-2	Minnesota	Dakota	Minneapolis-St. Paul-Bloomington, MN-WI	2025-09-30 00:00:00 -0400			SLAMS	0700	Minnesota Pollution Control Agency, Division Of Air Quality	Ms. Kellie Gavin	(651)-757-2379	kellie.gavin@state.mn.us	Minnesota Pollution Control Agency, Division Of Air Quality
08	56-013-0099-42401-1	Wyoming	Fremont	Riverton, WY	2025-12-31 00:00:00 -0400			SPM	1188	Wyoming Air Quality Division, Dept Of Environmental Quality	Leif Paulson	(307) 777-7817	leif.paulson@wyo.gov	Wyoming Air Quality Division, Dept Of Environmental Quality
08	30-087-0307-81102-4	Montana	Rosebud		2024-03-31 00:00:00 -0400		Y	TRIBAL	207	Northern Cheyenne Tribe of Northern Cheyenne Indian Reservation, MT	Scott Williams	406 477 6506	scott.williams@cheyennenation.com	Northern Cheyenne Tribe of Northern Cheyenne Indian Reservation, MT
08	49-035-2004-81102-1	Utah	Salt Lake	Salt Lake City, UT	2026-02-28 00:00:00 -0400		Y	SLAMS	1113	Utah Department Of Environmental Quality	Ms. Kimberly Kreykes	(801) 536-4000	kkreykes@utah.gov	Utah Department Of Environmental Quality
09	15-009-0006-88101-1	Hawaii	Maui	Kahului-Wailuku-Lahaina, HI	2025-12-31 00:00:00 -0400		Y	SPM	0481	Hawaii State Department Of Health	Sam Landingin	808-586-3996	sammy.landingin@doh.hawaii.gov	Hawaii State Department Of Health
10	41-017-0120-88101-1	Oregon	Deschutes	Bend-Redmond, OR	2025-09-30 00:00:00 -0400	2026-01-09 23:59:59 -0400	Y	SPM	0821	Oregon Department Of Environmental Quality	Mr. Anthony Barnack	(503) 229-5713	barnack.anthony@deq.state.or.us	Oregon Department Of Environmental Quality