Daily report · most polluted

US air quality on 14 October 2026

Fresno California105 Unhealthy for Sensitive GroupsUS AQI

Fresno had the most polluted air of 275 US cities

Updated 4:00 pm ET · AirNow

At 4:00 pm ET on 14 October 2026, 275 US cities were reporting. Fresno had the most polluted air at US AQI 105 (Unhealthy for Sensitive Groups), followed by Hanford (103) and Chattanooga (74). The median across all cities was 39, down from 42 the day before. 0 cities were at Unhealthy or worse (0 the day before). Findlay had the cleanest air at 1.

The biggest deterioration was in Fresno, from 71 to 105. Buffalo improved most, from 59 to 18.

Good 194
Moderate 79
Unhealthy for Sensitive Groups 2

10 most polluted cities

#	City	State	US AQI	Change
1	Fresno	California	105Sensitive	▲ 34
2	Hanford	California	103Sensitive	▲ 30
3	Chattanooga	Tennessee	74Moderate	▲ 7
4	Bakersfield	California	69Moderate	▲ 16
5	Columbia	South Carolina	67Moderate	▲ 9
6	El Paso	Texas	67Moderate	▲ 21
7	Wilmington	North Carolina	67Moderate	▲ 34
8	Cleveland	Tennessee	67Moderate	▲ 16
9	Atlanta	Georgia	66Moderate	▼ 11
10	Montgomery	Alabama	66Moderate	▲ 2

10 cleanest cities

#	City	State	US AQI	Change
1	Findlay	Ohio	1Good	0
2	Concord	New Hampshire	1Good	▼ 18
3	Kingman	Arizona	2Good	▼ 10
4	Lawrence	Kansas	6Good	▼ 25
5	Laramie	Wyoming	7Good	new
6	Butte	Montana	7Good	▼ 9
7	Utica	New York	7Good	▼ 36
8	Burlington	Vermont	8Good	▼ 6
9	Lorain	Ohio	10Good	▼ 32
10	Aberdeen	South Dakota	11Good	▲ 6

Biggest rises

Biggest improvements

All 275 cities on 14 October 2026

#	City	State	US AQI	Change
1	Fresno	California	105Sensitive	▲ 34
2	Hanford	California	103Sensitive	▲ 30
3	Chattanooga	Tennessee	74Moderate	▲ 7
4	Bakersfield	California	69Moderate	▲ 16
5	Columbia	South Carolina	67Moderate	▲ 9
6	El Paso	Texas	67Moderate	▲ 21
7	Wilmington	North Carolina	67Moderate	▲ 34
8	Cleveland	Tennessee	67Moderate	▲ 16
9	Atlanta	Georgia	66Moderate	▼ 11
10	Montgomery	Alabama	66Moderate	▲ 2
11	Philadelphia	Pennsylvania	65Moderate	▲ 9
12	Columbus	Georgia	65Moderate	▲ 7
13	Mobile	Alabama	63Moderate	▼ 24
14	Augusta	Georgia	63Moderate	▲ 16
15	San Diego	California	62Moderate	▲ 18
16	Newark	New Jersey	61Moderate	▲ 15
17	New York City	New York	61Moderate	▲ 26
18	Columbus	Ohio	61Moderate	▲ 3
19	Toledo	Ohio	61Moderate	0
20	Santa Maria	California	61Moderate	▲ 16
21	Yakima	Washington	61Moderate	▲ 13
22	Albany	Georgia	61Moderate	▲ 6
23	Aiken	South Carolina	61Moderate	▲ 23
24	Chicago	Illinois	60Moderate	▼ 5
25	Washington, D.C.	District of Columbia	60Moderate	▲ 12
26	Knoxville	Tennessee	60Moderate	▲ 2
27	Wilmington	Delaware	59Moderate	▲ 5
28	Charlotte	North Carolina	58Moderate	▼ 19
29	New Orleans	Louisiana	58Moderate	▼ 6
30	Raleigh	North Carolina	58Moderate	▼ 16
31	Fort Wayne	Indiana	58Moderate	▲ 9
32	Athens	Georgia	58Moderate	▲ 4
33	Houma	Louisiana	58Moderate	▲ 12
34	Pittsburgh	Pennsylvania	57Moderate	▲ 4
35	Fayetteville	North Carolina	57Moderate	▲ 11
36	Eureka	California	57Moderate	▲ 14
37	Bridgeport	Connecticut	56Moderate	▲ 20
38	Virginia Beach	Virginia	56Moderate	▲ 19
39	Portland	Oregon	56Moderate	▲ 4
40	Dayton	Ohio	56Moderate	▲ 7
41	Rancho Palos Verdes	California	56Moderate	▲ 7
42	Birmingham	Alabama	55Moderate	▼ 35
43	Nashville	Tennessee	55Moderate	▼ 3
44	Cincinnati	Ohio	55Moderate	▼ 3
45	Ironville	Kentucky	55Moderate	▲ 3
46	Baton Rouge	Louisiana	55Moderate	▼ 9
47	Huntsville	Alabama	55Moderate	▼ 1
48	Springfield	Illinois	55Moderate	▲ 10
49	Hattiesburg	Mississippi	55Moderate	▲ 19
50	Middletown	Connecticut	55Moderate	▲ 8
51	Hilo	Hawaii	55Moderate	▲ 33
52	Prescott Valley	Arizona	55Moderate	▲ 17
53	Overland Park	Kansas	54Moderate	▼ 1
54	Allentown	Pennsylvania	54Moderate	▲ 5
55	Peoria	Illinois	54Moderate	▲ 11
56	Greenville	South Carolina	54Moderate	▲ 3
57	Memphis	Tennessee	53Moderate	▲ 11
58	Houston	Texas	53Moderate	▼ 22
59	Albuquerque	New Mexico	53Moderate	▲ 1
60	Austin	Texas	53Moderate	▼ 2
61	San Francisco	California	53Moderate	▲ 22
62	Clarksville	Tennessee	53Moderate	▲ 4
63	Rio Rancho	New Mexico	53Moderate	▲ 1
64	Harrisonburg	Virginia	53Moderate	▲ 2
65	Providence	Rhode Island	52Moderate	▲ 9
66	Baltimore	Maryland	52Moderate	▲ 5
67	Little Rock	Arkansas	52Moderate	▼ 3
68	Phoenix	Arizona	52Moderate	▲ 16
69	Anchorage	Alaska	52Moderate	▲ 18
70	Louisville	Kentucky	52Moderate	▲ 3
71	Reno	Nevada	52Moderate	▲ 1
72	Richmond	Virginia	52Moderate	▲ 6
73	Amarillo	Texas	52Moderate	▲ 25
74	Columbia	Maryland	52Moderate	▲ 5
75	Champaign	Illinois	52Moderate	▲ 3
76	Conway	Arkansas	52Moderate	▼ 3
77	Binghamton	New York	52Moderate	▲ 1
78	North Kingstown	Rhode Island	52Moderate	▲ 9
79	Pleasure Ridge Park	Kentucky	52Moderate	▲ 3
80	San Mateo	California	51Moderate	▲ 11
81	Roanoke	Virginia	51Moderate	▲ 4
82	Los Angeles	California	50Good	▲ 2
83	Greensboro	North Carolina	50Good	▼ 1
84	Greenville	North Carolina	50Good	▲ 10
85	Gulfport	Mississippi	50Good	▲ 3
86	Bismarck	North Dakota	50Good	▲ 12
87	Navarre	Florida	50Good	▼ 37
88	Indianapolis	Indiana	49Good	▼ 3
89	Charleston	West Virginia	49Good	▼ 3
90	Laredo	Texas	49Good	▼ 6
91	Salem	Oregon	49Good	▲ 23
92	San Jose	California	48Good	▼ 6
93	Corpus Christi	Texas	48Good	▲ 22
94	Monroe	Louisiana	48Good	▲ 9
95	Tuscaloosa	Alabama	47Good	0
96	Parkersburg	West Virginia	47Good	▼ 1
97	Boston	Massachusetts	46Good	▲ 1
98	Kansas City	Missouri	46Good	▼ 9
99	Topeka	Kansas	46Good	▲ 7
100	Kingsport	Tennessee	46Good	▲ 3
101	Southaven	Mississippi	46Good	▲ 8
102	Collierville	Tennessee	46Good	▲ 8
103	Lewiston Orchards	Idaho	46Good	▼ 6
104	Myrtle Beach	South Carolina	46Good	▲ 10
105	Elmira	New York	46Good	▲ 1
106	Winchester	Virginia	46Good	▼ 6
107	Jacksonville	Florida	45Good	▲ 6
108	Jackson	Mississippi	45Good	▲ 1
109	Tallahassee	Florida	45Good	▼ 7
110	Savannah	Georgia	45Good	▲ 7
111	Annapolis	Maryland	45Good	0
112	Salt Lake City	Utah	44Good	▲ 14
113	Beaumont	Texas	44Good	▼ 5
114	Port Arthur	Texas	44Good	▲ 19
115	Morgantown	West Virginia	44Good	▼ 1
116	Lexington-Fayette	Kentucky	43Good	▼ 2
117	San Antonio	Texas	43Good	▲ 9
118	Tampa	Florida	43Good	▼ 7
119	Asheville	North Carolina	43Good	▼ 11
120	Bellingham	Washington	43Good	▼ 1
121	Pocatello	Idaho	43Good	▲ 22
122	Denver	Colorado	42Good	0
123	Worcester	Massachusetts	42Good	▼ 7
124	El Cajon	California	42Good	▼ 2
125	Redding	California	42Good	▲ 16
126	Auburn	Alabama	42Good	▼ 3
127	Farmington	New Mexico	42Good	▲ 12
128	Omaha	Nebraska	41Good	▲ 6
129	Sacramento	California	41Good	▼ 3
130	Charleston	South Carolina	41Good	▲ 14
131	Provo	Utah	41Good	▲ 5
132	The Woodlands	Texas	41Good	▲ 5
133	Flagstaff	Arizona	41Good	▲ 5
134	Pleasant Grove	Utah	41Good	▲ 11
135	Kennewick	Washington	40Good	▼ 12
136	Brownsville	Texas	39Good	▲ 3
137	Eugene	Oregon	39Good	▲ 12
138	Rockford	Illinois	39Good	▼ 13
139	South Bend	Indiana	39Good	▼ 11
140	Wichita	Kansas	38Good	▼ 6
141	Gilbert	Arizona	38Good	▲ 7
142	Fort Lauderdale	Florida	38Good	▼ 3
143	McAllen	Texas	38Good	▲ 4
144	Bowling Green	Kentucky	38Good	▼ 16
145	State College	Pennsylvania	38Good	▼ 13
146	Dallas	Texas	37Good	▼ 6
147	Lake Charles	Louisiana	37Good	▲ 9
148	Altoona	Pennsylvania	37Good	▼ 7
149	Wenatchee	Washington	37Good	▲ 8
150	Las Vegas	Nevada	36Good	▲ 1
151	Miami	Florida	36Good	▼ 15
152	Bozeman	Montana	36Good	▼ 26
153	Florence	Alabama	36Good	▲ 3
154	Billings	Montana	35Good	▲ 16
155	Tucson	Arizona	35Good	▲ 8
156	St. Louis	Missouri	35Good	▼ 11
157	Spokane	Washington	35Good	▲ 17
158	Palm Bay	Florida	35Good	▲ 3
159	Seattle	Washington	34Good	▲ 8
160	Oxnard	California	34Good	▼ 1
161	Grand Rapids	Michigan	34Good	▼ 27
162	Cape Coral	Florida	34Good	▼ 6
163	Lehigh Acres	Florida	34Good	▼ 6
164	Sumter	South Carolina	34Good	▼ 9
165	Cleveland	Ohio	33Good	▼ 24
166	Orlando	Florida	33Good	▼ 9
167	Shreveport	Louisiana	33Good	▼ 3
168	Joliet	Illinois	33Good	▼ 25
169	Deltona	Florida	33Good	▲ 2
170	Lynchburg	Virginia	33Good	▼ 11
171	Medford	Oregon	33Good	▲ 5
172	College Station	Texas	32Good	▼ 16
173	Santa Fe	New Mexico	32Good	▼ 1
174	Saint George	Utah	32Good	▼ 10
175	Grand Junction	Colorado	32Good	▼ 4
176	Fairbanks	Alaska	32Good	▼ 7
177	San Luis	Arizona	32Good	▼ 9
178	Cedar Rapids	Iowa	31Good	▼ 16
179	Gainesville	Florida	31Good	▼ 1
180	Davenport	Iowa	31Good	▼ 28
181	Yuma	Arizona	31Good	▼ 10
182	Des Moines	Iowa	30Good	▼ 12
183	Flint	Michigan	30Good	▼ 16
184	Portland	Maine	29Good	▲ 4
185	Manchester	New Hampshire	29Good	▲ 10
186	Honolulu	Hawaii	29Good	▲ 8
187	Chico	California	29Good	▼ 1
188	Twin Falls	Idaho	29Good	▼ 12
189	Palm Springs	California	29Good	▼ 15
190	Cape Girardeau	Missouri	29Good	▼ 11
191	Carbondale	Illinois	29Good	▼ 11
192	Coeur d'Alene	Idaho	28Good	▲ 12
193	Waterloo	Iowa	27Good	▼ 1
194	Marysville	Washington	27Good	▲ 3
195	Ridgecrest	California	27Good	▼ 4
196	Reedley	California	27Good	▼ 34
197	Detroit	Michigan	26Good	▼ 29
198	Dubuque	Iowa	26Good	▼ 18
199	Grand Island	Nebraska	26Good	▼ 2
200	Gillette	Wyoming	26Good	0
201	Rochester	New York	25Good	▼ 26
202	Waco	Texas	25Good	▼ 1
203	Carlsbad	New Mexico	25Good	▼ 2
204	Minneapolis	Minnesota	24Good	▲ 6
205	Albany	New York	24Good	0
206	Minot	North Dakota	24Good	▲ 7
207	Sioux Falls	South Dakota	23Good	▼ 6
208	Tulsa	Oklahoma	23Good	▼ 19
209	Las Cruces	New Mexico	23Good	▼ 1
210	Bend	Oregon	23Good	▲ 7
211	Duluth	Minnesota	23Good	▲ 10
212	Missoula	Montana	23Good	▲ 6
213	Mentor	Ohio	23Good	▼ 31
214	Lincoln	Nebraska	22Good	▼ 29
215	Victoria	Texas	22Good	▲ 4
216	Saint Cloud	Minnesota	22Good	▲ 8
217	Pullman	Washington	22Good	▲ 1
218	Cedar City	Utah	22Good	▼ 16
219	Saratoga Springs	New York	22Good	▼ 2
220	Kahului	Hawaii	22Good	▼ 31
221	Boise	Idaho	21Good	▼ 6
222	Evansville	Indiana	21Good	▼ 23
223	Rapid City	South Dakota	21Good	▼ 1
224	Quincy	Illinois	21Good	▼ 21
225	Bangor	Maine	21Good	▼ 4
226	Fargo	North Dakota	20Good	▲ 6
227	Oklahoma City	Oklahoma	20Good	▼ 26
228	Hobbs	New Mexico	20Good	▼ 9
229	Port Huron	Michigan	20Good	▼ 24
230	Norman	Oklahoma	19Good	▼ 19
231	Green Bay	Wisconsin	19Good	▼ 4
232	Tyler	Texas	19Good	▼ 3
233	Mankato	Minnesota	19Good	▲ 1
234	Juneau	Alaska	19Good	0
235	Weatherford	Texas	19Good	▼ 3
236	Greenville	Texas	19Good	▼ 6
237	Kingsville	Texas	19Good	▲ 1
238	Milwaukee	Wisconsin	18Good	▼ 29
239	Buffalo	New York	18Good	▼ 41
240	Madison	Wisconsin	18Good	▼ 12
241	Lansing	Michigan	18Good	▼ 34
242	Rochester	Minnesota	18Good	▼ 3
243	Niagara Falls	New York	18Good	▼ 41
244	Jefferson City	Missouri	18Good	▼ 23
245	Fort Smith	Arkansas	17Good	▼ 10
246	Eau Claire	Wisconsin	17Good	▲ 1
247	Redmond	Oregon	17Good	▲ 2
248	Syracuse	New York	16Good	▼ 31
249	Sioux City	Iowa	16Good	▼ 1
250	Appleton	Wisconsin	16Good	▼ 7
251	Lafayette	Indiana	16Good	▼ 29
252	Great Falls	Montana	16Good	▲ 8
253	Columbia	Missouri	15Good	▼ 21
254	Erie	Pennsylvania	15Good	▼ 28
255	Muskegon	Michigan	15Good	▼ 14
256	Lubbock	Texas	14Good	▼ 19
257	Springfield	Missouri	14Good	▼ 24
258	Casper	Wyoming	14Good	▼ 18
259	Cheyenne	Wyoming	13Good	▼ 9
260	Colorado Springs	Colorado	13Good	▼ 26
261	La Crosse	Wisconsin	13Good	▼ 5
262	Joplin	Missouri	13Good	▼ 32
263	Pahrump	Nevada	12Good	▼ 6
264	Jackson	Tennessee	11Good	▼ 26
265	Bartlesville	Oklahoma	11Good	▼ 25
266	Aberdeen	South Dakota	11Good	▲ 6
267	Lorain	Ohio	10Good	▼ 32
268	Burlington	Vermont	8Good	▼ 6
269	Utica	New York	7Good	▼ 36
270	Butte	Montana	7Good	▼ 9
271	Laramie	Wyoming	7Good	new
272	Lawrence	Kansas	6Good	▼ 25
273	Kingman	Arizona	2Good	▼ 10
274	Concord	New Hampshire	1Good	▼ 18
275	Findlay	Ohio	1Good	0

Snapshot taken at 4:00 pm ET from US EPA AirNow. Values are the latest hourly readings at that time, not daily averages. Cities with no reading are left out.

Live US AQI ranking →