Most polluted cities in United States

684 measured cities ranked by PM2.5, last 7 days. Worst: Calexico at 30.7 µg/m³, #75 in the world.

#	City	µg/m³
1	Calexico California	30.7
2	Los Angeles California	14.1
3	Jurupa Valley California	14.1
4	Clovis California	13.3
5	Riverside California	13.2
6	Little Rock Arkansas	13.0
7	Fontana California	12.5
8	Hanford California	12.4
9	Lawrence low-cost sensorsKansas	12.1
10	Whittier California	12.1
11	Wyoming Michigan	11.9
12	Hawthorne low-cost sensorsCalifornia	11.8
13	Monroe Louisiana	11.7
14	Fresno California	11.7
15	Shreveport Louisiana	11.5
16	Compton California	11.5
17	San Diego California	11.4
18	Dallas Texas	11.3
19	Oklahoma City Oklahoma	11.2
20	Chula Vista California	11.2
21	Tulsa Oklahoma	11.0
22	Carson low-cost sensorsCalifornia	11.0
23	Edmond Oklahoma	10.9
24	Pasadena Texas	10.8
25	Wheaton low-cost sensorsIllinois	10.8
26	Inglewood low-cost sensorsCalifornia	10.7
27	Corcoran California	10.6
28	Santa Monica low-cost sensorsCalifornia	10.6
29	Lima Ohio	10.5
30	El Cajon California	10.2
31	Porterville California	10.2
32	Springdale Arkansas	10.1
33	Maplewood low-cost sensorsMinnesota	10.1
34	Glendora California	10.1
35	Mission Viejo California	10.1
36	Oceanside California	10.1
37	Hattiesburg Mississippi	10.0
38	Fort Worth Texas	10.0
39	Burbank California	10.0
40	Merced California	10.0
41	Moore Oklahoma	9.9
42	Baytown Texas	9.9
43	Denton Texas	9.9
44	Texarkana Texas	9.9
45	Calumet City Illinois	9.9
46	Tulare low-cost sensorsCalifornia	9.9
47	Great Falls Montana	9.9
48	Wichita Kansas	9.8
49	Bridgeview Illinois	9.8
50	Deer Park Texas	9.7
51	Anaheim California	9.7
52	Lomita low-cost sensorsCalifornia	9.7
53	Valdosta Georgia	9.6
54	Terre Haute Indiana	9.6
55	Austin Texas	9.6
56	Columbus Georgia	9.5
57	Brookfield Illinois	9.5
58	Bakersfield California	9.5
59	Pasadena low-cost sensorsCalifornia	9.5
60	Baton Rouge Louisiana	9.4
61	New Orleans Louisiana	9.4
62	Madera California	9.4
63	Torrance low-cost sensorsCalifornia	9.4
64	San Antonio Texas	9.3
65	Holland Michigan	9.3
66	Lawton Oklahoma	9.2
67	Ponca City Oklahoma	9.2
68	Chalmette Louisiana	9.1
69	Gulfport Mississippi	9.1
70	Houston Texas	9.1
71	Live Oak Texas	9.1
72	Blue Island low-cost sensorsIllinois	9.1
73	Buffalo New York	9.1
74	Long Beach California	9.1
75	Poway California	9.1
76	San Jose California	9.1
77	Badger Alaska	9.1
78	Lemay Missouri	9.0
79	Middletown Ohio	9.0
80	College Station Texas	9.0
81	Laredo Texas	9.0
82	Thousand Oaks California	9.0
83	Ferry Pass Florida	8.9
84	Ocala Florida	8.9
85	Tallahassee Florida	8.9
86	Indianapolis Indiana	8.9
87	Kenner Louisiana	8.9
88	Franklin Park Illinois	8.9
89	Derby Kansas	8.8
90	Naperville Illinois	8.8
91	Niles low-cost sensorsIllinois	8.8
92	Oconomowoc low-cost sensorsWisconsin	8.8
93	Arroyo Grande California	8.8
94	Lake Elsinore California	8.8
95	Jenks Oklahoma	8.7
96	Evergreen Park low-cost sensorsIllinois	8.7
97	Oak Lawn Illinois	8.7
98	Skokie low-cost sensorsIllinois	8.7
99	San Leandro California	8.7
100	Salinas California	8.6
101	Saginaw Texas	8.5
102	Park Ridge low-cost sensorsIllinois	8.5
103	Agoura low-cost sensorsCalifornia	8.5
104	Santa Cruz California	8.5
105	McAlester Oklahoma	8.4
106	Turlock California	8.4
107	Sulphur Louisiana	8.3
108	Cedar Park Texas	8.3
109	Conroe Texas	8.3
110	Corpus Christi Texas	8.3
111	Kalamazoo Michigan	8.3
112	Ponte Vedra Beach Florida	8.2
113	Olathe Kansas	8.2
114	Columbus Ohio	8.2
115	Belton Texas	8.2
116	Missouri City Texas	8.2
117	Toledo Ohio	8.2
118	Corsicana Texas	8.1
119	Waterloo Iowa	8.1
120	Manteca California	8.1
121	Macon Georgia	8.0
122	Orcutt California	8.0
123	San Francisco California	8.0
124	Yuba City California	8.0
125	Birmingham Alabama	7.9
126	West Memphis Arkansas	7.9
127	Kansas City Kansas	7.9
128	North Charleston South Carolina	7.9
129	Mission Texas	7.9
130	Waukesha Wisconsin	7.9
131	Huntington Beach low-cost sensorsCalifornia	7.9
132	Valrico Florida	7.8
133	Savannah Georgia	7.8
134	Lafayette Louisiana	7.8
135	Edinburg Texas	7.8
136	Mission Bend Texas	7.8
137	Evanston low-cost sensorsIllinois	7.8
138	Brawley California	7.8
139	Redwood City California	7.8
140	Arden-Arcade California	7.8
141	Augusta Georgia	7.7
142	Valley Station Kentucky	7.7
143	Wake Forest low-cost sensorsNorth Carolina	7.7
144	Galveston Texas	7.7
145	Fort Wayne Indiana	7.7
146	Vallejo California	7.7
147	Norwood Ohio	7.6
148	Elkhart Indiana	7.6
149	Oakland California	7.6
150	Fort Smith Arkansas	7.5
151	Chicago Illinois	7.5
152	Livermore California	7.5
153	Santa Clarita California	7.5
154	El Paso Texas	7.5
155	Venice Florida	7.4
156	St. Louis Missouri	7.4
157	Elgin Illinois	7.4
158	Cleveland Ohio	7.4
159	Prunedale low-cost sensorsCalifornia	7.4
160	Topeka Kansas	7.3
161	Davenport Iowa	7.3
162	Aurora Illinois	7.3
163	Warren Ohio	7.3
164	Elk Grove low-cost sensorsCalifornia	7.3
165	Gilroy California	7.3
166	Stockton California	7.3
167	Jeffersonville Indiana	7.2
168	Lewiston Idaho	7.2
169	Midway Florida	7.2
170	Jacksonville Florida	7.1
171	Columbia low-cost sensorsMissouri	7.1
172	Pascagoula Mississippi	7.1
173	Asheville North Carolina	7.1
174	Kokomo Indiana	7.1
175	Michigan City Indiana	7.1
176	The Dalles Oregon	7.1
177	West Pensacola Florida	7.0
178	Albany Georgia	7.0
179	Brunswick Georgia	7.0
180	Conway South Carolina	7.0
181	Cedar Rapids Iowa	7.0
182	Elmwood Park Illinois	7.0
183	Green Bay Wisconsin	7.0
184	Kendale Lakes Florida	6.9
185	Granite City Illinois	6.9
186	New Albany Indiana	6.9
187	Springfield Missouri	6.9
188	Jackson Mississippi	6.9
189	Dolton Illinois	6.9
190	Bay City Michigan	6.9
191	Minneapolis Minnesota	6.9
192	South Milwaukee Wisconsin	6.9
193	Concord California	6.9
194	Nipomo California	6.9
195	Oxnard California	6.9
196	La Porte Texas	6.8
197	Rockford Illinois	6.8
198	Muncie Indiana	6.8
199	Dearborn Michigan	6.8
200	Flint Michigan	6.8
201	Lansing Michigan	6.8
202	Oregon Ohio	6.8
203	Temecula California	6.8
204	Odessa Texas	6.8
205	Nampa Idaho	6.8
206	Millcreek Utah	6.8
207	Warner Robins Georgia	6.7
208	East Saint Louis Illinois	6.7
209	Cincinnati Ohio	6.7
210	Muscatine Iowa	6.7
211	Peoria Illinois	6.7
212	Nogales Arizona	6.7
213	Galt California	6.7
214	Bonita Springs Florida	6.6
215	Decatur Illinois	6.6
216	Upper Alton Illinois	6.6
217	Hammond Indiana	6.6
218	Lafayette Indiana	6.6
219	Portage Indiana	6.6
220	Grand Rapids Michigan	6.6
221	Simi Valley California	6.6
222	Montgomery Alabama	6.5
223	Louisville Kentucky	6.5
224	Charleston West Virginia	6.5
225	Clinton Iowa	6.5
226	Moline Illinois	6.5
227	Iowa City Iowa	6.4
228	Jenison Michigan	6.4
229	Perrysburg Ohio	6.4
230	Sacramento California	6.4
231	South Lake Tahoe California	6.4
232	South San Francisco low-cost sensorsCalifornia	6.4
233	Victorville California	6.4
234	Fairhope Alabama	6.3
235	South Bend Indiana	6.3
236	Westerville Ohio	6.3
237	Youngstown Ohio	6.3
238	Banning California	6.3
239	Davis California	6.3
240	Live Oak low-cost sensorsCalifornia	6.3
241	La Crescenta-Montrose low-cost sensorsCalifornia	6.3
242	Bartow Florida	6.2
243	Atlanta Georgia	6.2
244	Leawood Kansas	6.2
245	Hernando Mississippi	6.2
246	Bartlett Tennessee	6.2
247	Detroit Michigan	6.2
248	Canton Ohio	6.2
249	Kahului Hawaii	6.2
250	Owensboro Kentucky	6.1
251	Ankeny Iowa	6.1
252	Joliet Illinois	6.1
253	Northbrook Illinois	6.1
254	Gary Indiana	6.1
255	Rochester Minnesota	6.1
256	Hollister California	6.1
257	Socorro Texas	6.1
258	Columbia City Washington	6.1
259	Oak Ridge Florida	6.0
260	Evansville Indiana	6.0
261	Arnold Missouri	6.0
262	Saint Joseph Missouri	6.0
263	Dayton Ohio	6.0
264	Portsmouth Ohio	6.0
265	East Chicago Indiana	6.0
266	Omaha Nebraska	6.0
267	Madison Wisconsin	6.0
268	Fillmore California	6.0
269	Florin low-cost sensorsCalifornia	6.0
270	San Rafael California	6.0
271	Seaside low-cost sensorsCalifornia	6.0
272	Bozeman Montana	6.0
273	St. Petersburg Florida	5.9
274	Ypsilanti Michigan	5.9
275	Lincoln California	5.9
276	West Valley City Utah	5.9
277	Four Corners Florida	5.9
278	Tampa Florida	5.8
279	White Oak Ohio	5.8
280	Chattanooga Tennessee	5.8
281	Lincoln Park Michigan	5.8
282	Redford Michigan	5.8
283	Saint Paul Minnesota	5.8
284	Delano low-cost sensorsCalifornia	5.8
285	El Centro California	5.8
286	Watsonville low-cost sensorsCalifornia	5.8
287	Sunland Park New Mexico	5.8
288	Meridian Idaho	5.8
289	West Jordan Utah	5.8
290	Lake Mary Florida	5.7
291	Raymore Missouri	5.7
292	Fort Dodge Iowa	5.7
293	Cary Illinois	5.7
294	Mankato Minnesota	5.7
295	Steubenville Ohio	5.7
296	Bessemer Alabama	5.6
297	Gainesville Florida	5.6
298	Fayetteville North Carolina	5.6
299	Saint Andrews South Carolina	5.6
300	Blaine Minnesota	5.6
301	Burnsville Minnesota	5.6
302	Akron Ohio	5.6
303	Sioux Falls South Dakota	5.6
304	Superior Wisconsin	5.6
305	Flagstaff Arizona	5.6
306	Goleta low-cost sensorsCalifornia	5.6
307	Tacoma Washington	5.6
308	Miami Florida	5.5
309	Athens Georgia	5.5
310	Springfield Illinois	5.5
311	Fishers Indiana	5.5
312	Lebanon Ohio	5.5
313	Mason Ohio	5.5
314	Jackson Tennessee	5.5
315	Des Plaines Illinois	5.5
316	Ann Arbor low-cost sensorsMichigan	5.5
317	Dublin Ohio	5.5
318	Tucson Arizona	5.5
319	Los Banos low-cost sensorsCalifornia	5.5
320	Tracy California	5.5
321	Ukiah California	5.5
322	Highland Utah	5.5
323	Salt Lake City Utah	5.5
324	Daytona Beach Florida	5.4
325	University City Missouri	5.4
326	Springfield Ohio	5.4
327	Huntington West Virginia	5.4
328	Des Moines Iowa	5.4
329	Bloomington Illinois	5.4
330	Champaign Illinois	5.4
331	Port Huron Michigan	5.4
332	Taylor Michigan	5.4
333	Apple Valley Minnesota	5.4
334	Bellevue Nebraska	5.4
335	Pittsburgh Pennsylvania	5.4
336	Appleton Wisconsin	5.4
337	Auburn Washington	5.4
338	Orlando Florida	5.3
339	Jasper Indiana	5.3
340	McKeesport Pennsylvania	5.3
341	Brookfield low-cost sensorsWisconsin	5.3
342	Santa Rosa California	5.3
343	Coeur d'Alene Idaho	5.3
344	Rapid City South Dakota	5.3
345	Bountiful Utah	5.3
346	Safety Harbor Florida	5.2
347	Bloomington Indiana	5.2
348	Morrisville North Carolina	5.2
349	Toms River New Jersey	5.2
350	Chesapeake Virginia	5.2
351	Anderson Indiana	5.2
352	Saint Michael Minnesota	5.2
353	Medina Ohio	5.2
354	West Mifflin Pennsylvania	5.2
355	Spanish Fork Utah	5.2
356	Lexington-Fayette Kentucky	5.1
357	Saint Matthews Kentucky	5.1
358	Spartanburg South Carolina	5.1
359	Painesville Ohio	5.1
360	Atascadero California	5.1
361	Hobbs New Mexico	5.1
362	Amarillo Texas	5.1
363	Gresham Oregon	5.1
364	Magna Utah	5.1
365	Tooele Utah	5.1
366	Renton Washington	5.1
367	Sheridan Wyoming	5.1
368	East Lake Florida	5.0
369	Fort Lauderdale Florida	5.0
370	Sarasota Florida	5.0
371	Elizabethtown Kentucky	5.0
372	Jeffersontown Kentucky	5.0
373	Charlotte North Carolina	5.0
374	Durham North Carolina	5.0
375	Ridgecrest California	5.0
376	Hurricane Utah	5.0
377	Brigham City Utah	5.0
378	Candler-McAfee Georgia	5.0
379	Ashland Kentucky	4.9
380	Roanoke Rapids North Carolina	4.9
381	Southfield Michigan	4.9
382	Wilkinsburg Pennsylvania	4.9
383	Payson Arizona	4.9
384	Encinitas low-cost sensorsCalifornia	4.9
385	Reno Nevada	4.9
386	Redding California	4.9
387	Billings Montana	4.9
388	Sunnyside Washington	4.9
389	Huntsville Alabama	4.8
390	Winter Park Florida	4.8
391	East Hampton Virginia	4.8
392	Zion Illinois	4.8
393	Eastpointe Michigan	4.8
394	Grand Island Nebraska	4.8
395	Hermitage Pennsylvania	4.8
396	Weirton West Virginia	4.8
397	Chico California	4.8
398	Truckee California	4.8
399	Windsor low-cost sensorsCalifornia	4.8
400	Thornton Colorado	4.8
401	Twin Falls Idaho	4.8
402	Bellingham Washington	4.8
403	Vancouver Washington	4.8
404	Kīhei Hawaii	4.8
405	Honolulu Hawaii	4.8
406	Fairbanks Alaska	4.8
407	Paducah Kentucky	4.7
408	Fort Myers Florida	4.7
409	Palm City Florida	4.7
410	Fort Thomas Kentucky	4.7
411	Hunt Valley Maryland	4.7
412	Lexington North Carolina	4.7
413	Raleigh North Carolina	4.7
414	Pennsauken New Jersey	4.7
415	Knoxville Tennessee	4.7
416	Maryville Tennessee	4.7
417	Bristol Virginia	4.7
418	Saint Cloud Minnesota	4.7
419	Syracuse New York	4.7
420	Gahanna Ohio	4.7
421	Burlington Vermont	4.7
422	Decatur Alabama	4.6
423	Pompano Beach Florida	4.6
424	Baltimore Maryland	4.6
425	Liberty Missouri	4.6
426	Harrisonburg Virginia	4.6
427	Cleveland Heights Ohio	4.6
428	Quincy Massachusetts	4.6
429	Duluth Minnesota	4.6
430	Rochester New York	4.6
431	Johnstown Pennsylvania	4.6
432	Scranton Pennsylvania	4.6
433	Upper Saint Clair Pennsylvania	4.6
434	Tempe Arizona	4.6
435	Indio California	4.6
436	Paradise California	4.6
437	Westminster low-cost sensorsColorado	4.6
438	Lubbock Texas	4.6
439	Cedar City Utah	4.6
440	Moscow Idaho	4.6
441	Pullman Washington	4.6
442	Seattle Washington	4.6
443	Coconut Creek Florida	4.5
444	Clemmons North Carolina	4.5
445	Winston-Salem North Carolina	4.5
446	Erie Pennsylvania	4.5
447	Phoenix Arizona	4.5
448	Tigard Oregon	4.5
449	North Ogden Utah	4.5
450	Orem Utah	4.5
451	Kent Washington	4.5
452	Delray Beach Florida	4.4
453	Nicholasville Kentucky	4.4
454	Nashville Tennessee	4.4
455	Bensalem Pennsylvania	4.4
456	Weirton Heights West Virginia	4.4
457	Lancaster California	4.4
458	Greeley Colorado	4.4
459	Gadsden Alabama	4.3
460	Belle Glade Florida	4.3
461	Deerfield Beach Florida	4.3
462	Wellington Florida	4.3
463	Columbus Indiana	4.3
464	York Pennsylvania	4.3
465	La Vista Nebraska	4.3
466	Elizabeth New Jersey	4.3
467	Shaker Heights Ohio	4.3
468	Lancaster Pennsylvania	4.3
469	Denver Colorado	4.3
470	McDonough Georgia	4.2
471	Fall River Massachusetts	4.2
472	Marquette Michigan	4.2
473	Lompoc California	4.2
474	Fort Collins Colorado	4.2
475	Longmont Colorado	4.2
476	Pocatello Idaho	4.2
477	Edgewood Maryland	4.1
478	Camden low-cost sensorsNew Jersey	4.1
479	Philadelphia Pennsylvania	4.1
480	Clarksville Tennessee	4.1
481	Richmond Virginia	4.1
482	Harrisburg Pennsylvania	4.1
483	Rutland Vermont	4.1
484	Palo Alto low-cost sensorsCalifornia	4.1
485	Northglenn low-cost sensorsColorado	4.1
486	Las Cruces New Mexico	4.1
487	Spanish Springs Nevada	4.1
488	Lacey Washington	4.1
489	Parkland Washington	4.1
490	Port Angeles Washington	4.1
491	Palm Bay Florida	4.0
492	Chambersburg Pennsylvania	4.0
493	Short Pump Virginia	4.0
494	Pawtucket Rhode Island	4.0
495	Yuma Arizona	4.0
496	Colorado Springs Colorado	4.0
497	Idaho Falls Idaho	4.0
498	Bremerton Washington	4.0
499	Anchorage Alaska	4.0
500	Washington District of Columbia	3.9
501	Davie Florida	3.9
502	Gainesville Georgia	3.9
503	Greensboro North Carolina	3.9
504	Columbia Tennessee	3.9
505	Springfield Virginia	3.9
506	Rio Rancho New Mexico	3.9
507	Las Vegas Nevada	3.9
508	Butte Montana	3.9
509	Herriman Utah	3.9
510	Longview Washington	3.9
511	Shoreline Washington	3.9
512	Randolph New Jersey	3.9
513	Dover Delaware	3.8
514	Cookeville Tennessee	3.8
515	Dyersburg Tennessee	3.8
516	Hendersonville Tennessee	3.8
517	Jersey City New Jersey	3.8
518	Linden New Jersey	3.8
519	Folsom California	3.8
520	Apache Junction Arizona	3.8
521	Marysville Washington	3.8
522	Lawrenceville Georgia	3.7
523	Hickory North Carolina	3.7
524	Greenville South Carolina	3.7
525	Salem Virginia	3.7
526	Boston Massachusetts	3.7
527	Newark New Jersey	3.7
528	Bismarck North Dakota	3.7
529	Centralia Washington	3.7
530	Bear Delaware	3.6
531	Kingsport Tennessee	3.6
532	Springfield Massachusetts	3.6
533	Casas Adobes Arizona	3.6
534	Marana Arizona	3.6
535	Pueblo Colorado	3.6
536	Windsor Colorado	3.6
537	Hermiston Oregon	3.6
538	Portland Oregon	3.6
539	Salem Oregon	3.6
540	Pleasantville New Jersey	3.5
541	Ashburn Virginia	3.5
542	Charlottesville Virginia	3.5
543	Roanoke Virginia	3.5
544	Rose Hill Virginia	3.5
545	Brockton Massachusetts	3.5
546	Portsmouth New Hampshire	3.5
547	New York City New York	3.5
548	Brookings South Dakota	3.5
549	Glendale Arizona	3.5
550	Arvada low-cost sensorsColorado	3.5
551	Albuquerque New Mexico	3.5
552	Carson City Nevada	3.5
553	Helena Montana	3.5
554	Coos Bay Oregon	3.5
555	Eugene Oregon	3.5
556	Pendleton Oregon	3.5
557	Burien Washington	3.5
558	Wilmington Delaware	3.4
559	Lynn Massachusetts	3.4
560	Augusta Maine	3.4
561	Trenton New Jersey	3.4
562	Reading Pennsylvania	3.4
563	Littleton Colorado	3.4
564	Enterprise Nevada	3.4
565	Henderson Nevada	3.4
566	Albany Oregon	3.4
567	Aberdeen Washington	3.4
568	Bellevue Washington	3.4
569	Spokane Valley Washington	3.4
570	Picnic Point-North Lynnwood Washington	3.4
571	Elkton Maryland	3.3
572	Hagerstown Maryland	3.3
573	Portland Maine	3.3
574	West Fargo North Dakota	3.3
575	Keene New Hampshire	3.3
576	Abington low-cost sensorsPennsylvania	3.3
577	Lebanon Pennsylvania	3.3
578	State College Pennsylvania	3.3
579	Spring Valley Nevada	3.3
580	Boise Idaho	3.3
581	Missoula Montana	3.3
582	Salmon Creek Washington	3.3
583	Walla Walla Washington	3.3
584	Hilo Hawaii	3.3
585	Lowell Massachusetts	3.2
586	Lewiston Maine	3.2
587	Paterson New Jersey	3.2
588	Utica New York	3.2
589	Aberdeen South Dakota	3.2
590	Canby Oregon	3.2
591	Forest Grove Oregon	3.2
592	Milwaukie Oregon	3.2
593	Woodburn Oregon	3.2
594	Summerlin South Nevada	3.2
595	Tri-Cities Washington	3.2
596	Scaggsville Maryland	3.1
597	Atlantic City New Jersey	3.1
598	Bangor Maine	3.1
599	Fort Lee New Jersey	3.1
600	Allentown Pennsylvania	3.1
601	Carlisle Pennsylvania	3.1
602	Wenatchee Washington	3.1
603	Bethlehem Pennsylvania	3.0
604	Casa Grande Arizona	3.0
605	Vacaville California	3.0
606	Cañon City Colorado	3.0
607	Altamont Oregon	3.0
608	Ashland Oregon	3.0
609	Beaverton Oregon	3.0
610	Medford Oregon	3.0
611	Spokane Washington	3.0
612	Yakima Washington	3.0
613	Newark Delaware	2.9
614	New Haven Connecticut	2.9
615	Waterbury Connecticut	2.9
616	Greenfield Massachusetts	2.9
617	Haverhill Massachusetts	2.9
618	Albany New York	2.9
619	Bend Oregon	2.9
620	Hillsboro Oregon	2.9
621	Roseburg Oregon	2.9
622	Mount Vernon Washington	2.9
623	Casper Wyoming	2.9
624	Chester Pennsylvania	2.8
625	New Brunswick New Jersey	2.8
626	Norristown Pennsylvania	2.8
627	Middleton low-cost sensorsWisconsin	2.8
628	Green Valley Arizona	2.8
629	South Valley New Mexico	2.8
630	Boulder City Nevada	2.8
631	Mesquite Nevada	2.8
632	Boulder Colorado	2.8
633	Sewell New Jersey	2.7
634	Hartford Connecticut	2.7
635	Framingham Massachusetts	2.7
636	Providence Rhode Island	2.7
637	Ken Caryl Colorado	2.7
638	Anacortes Washington	2.7
639	Pasco Washington	2.7
640	Gillette Wyoming	2.7
641	South Vineland New Jersey	2.6
642	Milford Massachusetts	2.6
643	Worcester Massachusetts	2.6
644	Holbrook New York	2.6
645	Bridgeport Connecticut	2.6
646	Oregon City Oregon	2.6
647	Danbury Connecticut	2.5
648	Pittsfield Massachusetts	2.5
649	Watertown South Dakota	2.5
650	Grants Pass Oregon	2.5
651	McMinnville Oregon	2.5
652	Ellensburg Washington	2.5
653	Rock Springs Wyoming	2.5
654	North Chicopee Massachusetts	2.4
655	Derry New Hampshire	2.4
656	Oxon Hill-Glassmanor Maryland	2.4
657	New London Connecticut	2.3
658	Kennewick Washington	2.3
659	Golden low-cost sensorsColorado	2.2
660	Cheyenne Wyoming	2.2
661	Corvallis Oregon	2.1
662	Monroe low-cost sensorsWashington	2.1
663	Laramie Wyoming	2.1
664	Rockville Maryland	2.0
665	Lakewood low-cost sensorsColorado	2.0
666	Redmond Oregon	2.0
667	South Laurel Maryland	1.9
668	Laconia New Hampshire	1.9
669	Dallas Oregon	1.9
670	Newburgh New York	1.8
671	Inglewood-Finn Hill low-cost sensorsWashington	1.6
672	Bothell low-cost sensorsWashington	1.4
673	New City New York	1.3
674	White Plains New York	1.3
675	Coventry Rhode Island	1.3
676	Kirkland low-cost sensorsWashington	1.1
677	Union Hill-Novelty Hill low-cost sensorsWashington	1.1
678	Logan low-cost sensorsUtah	1.0
679	North Creek low-cost sensorsWashington	1.0
680	Parker low-cost sensorsColorado	0.8
681	Lexington low-cost sensorsMassachusetts	0.3
682	Altoona Pennsylvania	0.3
683	Newton low-cost sensorsMassachusetts	0.1
684	Oro Valley low-cost sensorsArizona	0.1

Good 0–9.0Moderate 9.1+Unhealthy for sensitive groups 35.5+Unhealthy 55.5+Very unhealthy 125.5+Hazardous 225.5+No data

Estimated: cities without a monitor

United States cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City	7-day estimate	Band
Brooklyn estimated	≈ 4 µg/m³	Good
Queens estimated	≈ 4 µg/m³	Good
Manhattan estimated	≈ 4 µg/m³	Good
The Bronx estimated	≈ 4 µg/m³	Good
Memphis estimated	≈ 6 µg/m³	Good
Staten Island estimated	≈ 4 µg/m³	Good
Virginia Beach estimated	≈ 4 µg/m³	Good
Aurora estimated	≈ 5 µg/m³	Good
Lexington estimated	≈ 5 µg/m³	Good
Santa Ana estimated	≈ 8 µg/m³	Good
Meads estimated	≈ 5 µg/m³	Good
Plano estimated	≈ 9 µg/m³	Moderate
Chandler estimated	≈ 7 µg/m³	Good
Irvine estimated	≈ 8 µg/m³	Good
Gilbert estimated	≈ 4 µg/m³	Good
Norfolk estimated	≈ 4 µg/m³	Good
Hialeah estimated	≈ 6 µg/m³	Good
Garland estimated	≈ 10 µg/m³	Moderate
Scottsdale estimated	≈ 7 µg/m³	Good
Irving estimated	≈ 9 µg/m³	Moderate
North Las Vegas estimated	≈ 4 µg/m³	Good
Fremont estimated	≈ 9 µg/m³	Moderate
Paradise estimated	≈ 4 µg/m³	Good
San Bernardino estimated	≈ 9 µg/m³	Good
Arlington estimated	≈ 4 µg/m³	Good
Moreno Valley estimated	≈ 9 µg/m³	Good
Yonkers estimated	≈ 4 µg/m³	Good
Glendale estimated	≈ 12 µg/m³	Moderate
Cypress estimated	≈ 8 µg/m³	Good
Peoria estimated	≈ 7 µg/m³	Good
Sunrise Manor estimated	≈ 3 µg/m³	Good
Grand Prairie estimated	≈ 9 µg/m³	Moderate
Overland Park estimated	≈ 7 µg/m³	Good
Newport News estimated	≈ 4 µg/m³	Good
Mobile estimated	≈ 8 µg/m³	Good
Garden Grove estimated	≈ 8 µg/m³	Good
Rancho Cucamonga estimated	≈ 12 µg/m³	Moderate
Cape Coral estimated	≈ 5 µg/m³	Good
Pembroke Pines estimated	≈ 6 µg/m³	Good
Murfreesboro estimated	≈ 5 µg/m³	Good

Regions

Updated 2026-10-01 08:07 UTC. Values are PM2.5 in µg/m³ (fine particles), the median of each city's monitors.