SmogRank / Cleaner or dirtier / United States

United States: cleaner or dirtier, 2024

In United States, 725 cities have enough days in both years to compare 2024 with the same days of 2023: 146 got dirtier and 565 cleaner.

Every city's change from 2023 to 2024, one column each, biggest rise on the left, coloured by its 2024 level. Above the line: dirtier. Below: cleaner.

The 146 cities that got dirtier, biggest rise first

#	City	2023	2024	Change
1	Port IsabelTexas, United States	55	73	+9.4 µg/m³+82%
2	MeridianIdaho, United States	36	55	+4.6 µg/m³+72%
3	Garden CityIdaho, United States	34	53	+4.3 µg/m³+70%
4	El PasoTexas, United States	42	55	+3.5 µg/m³+47%
5	NampaIdaho, United States	40	54	+3.5 µg/m³+49%
6	NogalesArizona, United States	43	54	+3.2 µg/m³+42%
7	Twin FallsIdaho, United States	29	46	+3.1 µg/m³+60%
8	BurbankCalifornia, United States	53	58	+3.0 µg/m³+30%
9	FontanaCalifornia, United States	59	65	+3.0 µg/m³+22%
10	Jurupa ValleyCalifornia, United States	56	61	+2.7 µg/m³+23%
11	HollisterCalifornia, United States	26	41	+2.7 µg/m³+59%
12	EdinburgTexas, United States	52	57	+2.6 µg/m³+27%
13	LafayetteLouisiana, United States	42	53	+2.5 µg/m³+33%
14	PortervilleCalifornia, United States	53	57	+2.4 µg/m³+24%
15	Lake ElsinoreCalifornia, United States	38	51	+2.4 µg/m³+35%
16	PocatelloIdaho, United States	27	41	+2.4 µg/m³+49%
17	RiversideCalifornia, United States	55	59	+2.2 µg/m³+20%
18	Corpus ChristiTexas, United States	50	55	+2.2 µg/m³+24%
19	OntarioOregon, United States	30	42	+2.1 µg/m³+39%
20	DurhamNorth Carolina, United States	44	52	+2.0 µg/m³+25%
21	GlendoraCalifornia, United States	51	55	+1.9 µg/m³+21%
22	ClovisCalifornia, United States	51	55	+1.9 µg/m³+21%
23	BozemanMontana, United States	32	42	+1.9 µg/m³+33%
24	ConroeTexas, United States	54	57	+1.8 µg/m³+17%
25	InglewoodCalifornia, United States	52	55	+1.8 µg/m³+19%
26	Casa GrandeArizona, United States	38	48	+1.8 µg/m³+26%
27	Santa ClaritaCalifornia, United States	52	55	+1.7 µg/m³+18%
28	Stansbury parkUtah, United States	32	41	+1.7 µg/m³+30%
29	HelenaMontana, United States	52	55	+1.7 µg/m³+18%
30	Baker CityOregon, United States	37	46	+1.6 µg/m³+24%
31	Los AngelesCalifornia, United States	56	59	+1.6 µg/m³+13%
32	CarsonCalifornia, United States	54	57	+1.6 µg/m³+15%
33	LongmontColorado, United States	34	43	+1.5 µg/m³+24%
34	MaranaArizona, United States	32	40	+1.5 µg/m³+26%
35	LancasterCalifornia, United States	23	32	+1.5 µg/m³+36%
36	OremUtah, United States	37	46	+1.5 µg/m³+22%
37	BartlettTennessee, United States	53	55	+1.4 µg/m³+14%
38	Big Bear CityCalifornia, United States	37	45	+1.4 µg/m³+21%
39	HawthorneCalifornia, United States	54	57	+1.4 µg/m³+13%
40	Helena Valley West CentralMontana, United States	53	55	+1.3 µg/m³+13%
41	AlbuquerqueNew Mexico, United States	39	46	+1.3 µg/m³+19%
42	VisaliaCalifornia, United States	55	58	+1.3 µg/m³+11%
43	Santa MonicaCalifornia, United States	49	53	+1.3 µg/m³+15%
44	AgouraCalifornia, United States	46	52	+1.3 µg/m³+16%
45	AnaheimCalifornia, United States	53	55	+1.2 µg/m³+12%
46	LaredoTexas, United States	52	54	+1.2 µg/m³+13%
47	HuronCalifornia, United States	40	46	+1.1 µg/m³+15%
48	Simi ValleyCalifornia, United States	37	43	+1.1 µg/m³+17%
49	TorranceCalifornia, United States	52	54	+1.1 µg/m³+11%
50	LomitaCalifornia, United States	49	52	+1.1 µg/m³+12%
51	Eagle PassTexas, United States	45	51	+1.1 µg/m³+14%
52	ButteMontana, United States	42	48	+1.1 µg/m³+14%
53	Live OakTexas, United States	52	54	+1.0 µg/m³+10%
54	La Crescenta-MontroseCalifornia, United States	50	53	+1.0 µg/m³+11%
55	VictorvilleCalifornia, United States	45	51	+1.0 µg/m³+12%
56	Ben LomondCalifornia, United States	32	38	+1.0 µg/m³+17%
57	TooeleUtah, United States	32	37	+1.0 µg/m³+18%
58	King CityCalifornia, United States	32	37	+1.0 µg/m³+18%
59	LyndenWashington, United States	26	32	+1.0 µg/m³+21%
60	OrcuttCalifornia, United States	26	31	+1.0 µg/m³+22%
61	MilwaukieOregon, United States	25	31	+1.0 µg/m³+22%
62	AtascaderoCalifornia, United States	24	30	+1.0 µg/m³+23%
63	Summerlin SouthNevada, United States	22	27	+0.9 µg/m³+23%
64	San JoseCalifornia, United States	43	48	+0.9 µg/m³+12%
65	GuadalupeCalifornia, United States	32	37	+0.9 µg/m³+16%
66	Santa CruzCalifornia, United States	30	35	+0.9 µg/m³+17%
67	Carson CityNevada, United States	30	35	+0.9 µg/m³+17%
68	CasperWyoming, United States	19	23	+0.8 µg/m³+24%
69	NipomoCalifornia, United States	30	34	+0.8 µg/m³+15%
70	TracyCalifornia, United States	29	33	+0.8 µg/m³+15%
71	OjaiCalifornia, United States	29	33	+0.8 µg/m³+15%
72	PrestonIdaho, United States	28	32	+0.8 µg/m³+16%
73	AnacortesWashington, United States	18	22	+0.8 µg/m³+25%
74	WindcrestTexas, United States	52	53	+0.8 µg/m³+9%
75	PhoenixArizona, United States	49	52	+0.8 µg/m³+9%
76	FairbanksAlaska, United States	46	51	+0.8 µg/m³+10%
77	Lacy-LakeviewTexas, United States	54	55	+0.7 µg/m³+7%
78	MoscowIdaho, United States	34	38	+0.7 µg/m³+11%
79	Casas AdobesArizona, United States	32	36	+0.7 µg/m³+12%
80	AnchorageAlaska, United States	25	29	+0.7 µg/m³+16%
81	HelotesTexas, United States	51	53	+0.7 µg/m³+8%
82	AlpineCalifornia, United States	39	43	+0.6 µg/m³+8%
83	BellinghamWashington, United States	28	32	+0.6 µg/m³+12%
84	Las CrucesNew Mexico, United States	27	30	+0.6 µg/m³+13%
85	Grand JunctionColorado, United States	24	27	+0.6 µg/m³+14%
86	Port ArthurTexas, United States	54	55	+0.6 µg/m³+6%
87	ToledoOhio, United States	46	49	+0.6 µg/m³+7%
88	SmithfieldUtah, United States	39	42	+0.6 µg/m³+9%
89	FresnoCalifornia, United States	56	57	+0.5 µg/m³+4%
90	LawrencevilleGeorgia, United States	53	54	+0.5 µg/m³+5%
91	DallasTexas, United States	53	54	+0.5 µg/m³+5%
92	OcalaFlorida, United States	49	51	+0.5 µg/m³+6%
93	Lake MaryFlorida, United States	39	42	+0.5 µg/m³+7%
94	MesaArizona, United States	37	39	+0.5 µg/m³+8%
95	Apache JunctionArizona, United States	24	27	+0.5 µg/m³+11%
96	Hawaiian Paradise ParkHawaii, United States	15	18	+0.5 µg/m³+19%
97	AugustaGeorgia, United States	53	54	+0.4 µg/m³+4%
98	River OaksTexas, United States	52	53	+0.4 µg/m³+4%
99	UkiahCalifornia, United States	44	46	+0.4 µg/m³+5%
100	MoabUtah, United States	42	44	+0.4 µg/m³+5%
101	ValricoFlorida, United States	42	44	+0.4 µg/m³+5%
102	OdessaTexas, United States	39	41	+0.4 µg/m³+6%
103	La GrandeOregon, United States	34	36	+0.4 µg/m³+7%
104	Cedar HillsUtah, United States	34	36	+0.4 µg/m³+7%
105	HighlandUtah, United States	34	36	+0.4 µg/m³+7%
106	MissoulaMontana, United States	33	35	+0.4 µg/m³+7%
107	FillmoreCalifornia, United States	32	34	+0.4 µg/m³+7%
108	HendersonNevada, United States	27	29	+0.4 µg/m³+8%
109	San AntonioTexas, United States	53	53	+0.3 µg/m³+3%
110	SaginawTexas, United States	52	52	+0.3 µg/m³+3%
111	LewistonIdaho, United States	51	52	+0.3 µg/m³+3%
112	MantecaCalifornia, United States	48	49	+0.3 µg/m³+3%
113	MiamiFlorida, United States	46	47	+0.3 µg/m³+4%
114	Las VegasNevada, United States	42	44	+0.3 µg/m³+4%
115	PrinevilleOregon, United States	42	44	+0.3 µg/m³+4%
116	PriceUtah, United States	23	24	+0.3 µg/m³+7%
117	HendersonvilleTennessee, United States	43	45	+0.3 µg/m³+4%
118	WoodlandCalifornia, United States	43	45	+0.3 µg/m³+4%
119	BountifulUtah, United States	38	40	+0.3 µg/m³+4%
120	TucsonArizona, United States	36	38	+0.3 µg/m³+5%
121	San FranciscoCalifornia, United States	33	35	+0.3 µg/m³+5%
122	North OgdenUtah, United States	33	34	+0.3 µg/m³+5%
123	Colorado SpringsColorado, United States	31	32	+0.3 µg/m³+5%
124	MarionArkansas, United States	52	52	+0.2 µg/m³+2%
125	West MemphisArkansas, United States	52	52	+0.2 µg/m³+2%
126	RenoNevada, United States	33	34	+0.2 µg/m³+3%
127	Idaho FallsIdaho, United States	31	32	+0.2 µg/m³+4%
128	Spring ValleyNevada, United States	28	29	+0.2 µg/m³+4%
129	KahuluiHawaii, United States	22	23	+0.2 µg/m³+5%
130	MesquiteNevada, United States	21	22	+0.2 µg/m³+5%
131	CalexicoCalifornia, United States	51	52	+0.2 µg/m³+2%
132	McAlesterOklahoma, United States	49	51	+0.2 µg/m³+2%
133	LanderWyoming, United States	41	42	+0.2 µg/m³+3%
134	College StationTexas, United States	46	46	+0.1 µg/m³+1%
135	Belle GladeFlorida, United States	41	41	+0.1 µg/m³+1%
136	GlendaleArizona, United States	41	41	+0.1 µg/m³+1%
137	LockwoodMontana, United States	41	41	+0.1 µg/m³+1%
138	AmarilloTexas, United States	35	36	+0.1 µg/m³+2%
139	EnterpriseNevada, United States	24	24	+0.1 µg/m³+2%
140	LaceyWashington, United States	24	24	+0.1 µg/m³+2%
141	HoustonTexas, United States	57	57	+0.1 µg/m³+1%
142	CorcoranCalifornia, United States	52	53	+0.1 µg/m³+1%
143	El CajonCalifornia, United States	51	51	+0.1 µg/m³+1%
144	Red BluffCalifornia, United States	40	41	+0.1 µg/m³+1%
145	Fort CollinsColorado, United States	36	36	+0.1 µg/m³+2%
146	North ValleyNew Mexico, United States	32	32	+0.1 µg/m³+2%

The 565 cities that got cleaner, biggest fall first

#	City	2023	2024	Change
1	New HollandPennsylvania, United States	62	51	−6.0 µg/m³−39%
2	YrekaCalifornia, United States	56	33	−5.8 µg/m³−50%
3	GreenOregon, United States	53	28	−5.4 µg/m³−52%
4	BloomingtonIllinois, United States	55	36	−5.0 µg/m³−44%
5	BarabooWisconsin, United States	53	31	−4.8 µg/m³−46%
6	GreendaleWisconsin, United States	55	37	−4.8 µg/m³−42%
7	West FargoNorth Dakota, United States	55	37	−4.8 µg/m³−42%
8	Grants PassOregon, United States	54	34	−4.7 µg/m³−44%
9	Iowa CityIowa, United States	57	42	−4.7 µg/m³−38%
10	AppletonWisconsin, United States	54	33	−4.7 µg/m³−44%
11	Lincoln ParkMichigan, United States	57	43	−4.5 µg/m³−37%
12	MolineIllinois, United States	55	37	−4.5 µg/m³−41%
13	TecumsehMichigan, United States	55	38	−4.5 µg/m³−39%
14	AshlandOregon, United States	53	33	−4.4 µg/m³−42%
15	MarshallMinnesota, United States	55	38	−4.4 µg/m³−39%
16	WaukeshaWisconsin, United States	55	39	−4.4 µg/m³−38%
17	ClintonIowa, United States	56	42	−4.4 µg/m³−37%
18	RedmondOregon, United States	57	45	−4.4 µg/m³−35%
19	Beaver FallsPennsylvania, United States	57	45	−4.4 µg/m³−35%
20	SeafordDelaware, United States	54	35	−4.4 µg/m³−41%
21	Calumet CityIllinois, United States	57	43	−4.4 µg/m³−36%
22	MuscatineIowa, United States	52	31	−4.3 µg/m³−44%
23	MadisonWisconsin, United States	54	36	−4.3 µg/m³−40%
24	Columbia CityIndiana, United States	55	39	−4.3 µg/m³−38%
25	Green BayWisconsin, United States	54	34	−4.3 µg/m³−41%
26	ElizabethNew Jersey, United States	56	43	−4.3 µg/m³−36%
27	MilwaukeeWisconsin, United States	57	43	−4.3 µg/m³−36%
28	DavenportIowa, United States	55	39	−4.2 µg/m³−37%
29	South MilwaukeeWisconsin, United States	55	38	−4.2 µg/m³−38%
30	MedfordOregon, United States	56	41	−4.2 µg/m³−36%
31	DetroitMichigan, United States	58	48	−4.1 µg/m³−32%
32	GlasgowDelaware, United States	53	34	−4.1 µg/m³−40%
33	MonessenPennsylvania, United States	55	39	−4.1 µg/m³−37%
34	BensalemPennsylvania, United States	59	51	−4.1 µg/m³−31%
35	IndianapolisIndiana, United States	59	52	−4.1 µg/m³−30%
36	Winthrop HarborIllinois, United States	52	32	−4.0 µg/m³−41%
37	HavreMontana, United States	48	26	−4.0 µg/m³−47%
38	AltoonaWisconsin, United States	54	36	−4.0 µg/m³−38%
39	Warrensville HeightsOhio, United States	54	37	−4.0 µg/m³−38%
40	RockfordIllinois, United States	55	41	−4.0 µg/m³−35%
41	LancasterPennsylvania, United States	56	44	−4.0 µg/m³−33%
42	AltoonaPennsylvania, United States	52	33	−3.9 µg/m³−40%
43	Highland HeightsKentucky, United States	53	36	−3.9 µg/m³−37%
44	TrentonNew Jersey, United States	54	38	−3.9 µg/m³−36%
45	JolietIllinois, United States	56	44	−3.9 µg/m³−33%
46	BraidwoodIllinois, United States	54	37	−3.9 µg/m³−37%
47	WilmingtonDelaware, United States	54	38	−3.9 µg/m³−36%
48	ElktonMaryland, United States	52	33	−3.8 µg/m³−39%
49	SavoyIllinois, United States	52	34	−3.8 µg/m³−38%
50	ShakopeeMinnesota, United States	56	44	−3.8 µg/m³−32%
51	NapervilleIllinois, United States	56	46	−3.8 µg/m³−32%
52	ClaymontDelaware, United States	55	40	−3.8 µg/m³−35%
53	Des PlainesIllinois, United States	55	41	−3.8 µg/m³−34%
54	South BendIndiana, United States	55	41	−3.8 µg/m³−34%
55	New BrightonPennsylvania, United States	53	37	−3.7 µg/m³−36%
56	LansingMichigan, United States	53	37	−3.7 µg/m³−36%
57	TalentOregon, United States	52	32	−3.7 µg/m³−39%
58	Saint CloudMinnesota, United States	53	37	−3.7 µg/m³−36%
59	Apple ValleyMinnesota, United States	53	37	−3.7 µg/m³−36%
60	New BaltimoreMichigan, United States	54	38	−3.7 µg/m³−35%
61	Eau ClaireWisconsin, United States	53	36	−3.7 µg/m³−37%
62	PennsaukenNew Jersey, United States	55	41	−3.7 µg/m³−33%
63	MinneapolisMinnesota, United States	55	42	−3.7 µg/m³−33%
64	WaterlooIowa, United States	56	44	−3.7 µg/m³−32%
65	BethlehemPennsylvania, United States	53	38	−3.6 µg/m³−35%
66	SchlusserPennsylvania, United States	54	41	−3.6 µg/m³−33%
67	ChesterPennsylvania, United States	54	41	−3.6 µg/m³−33%
68	DaytonOhio, United States	55	43	−3.6 µg/m³−32%
69	HudsonvilleMichigan, United States	53	37	−3.6 µg/m³−35%
70	WyomissingPennsylvania, United States	54	39	−3.6 µg/m³−34%
71	BurnsvilleMinnesota, United States	56	44	−3.6 µg/m³−31%
72	East ChicagoIndiana, United States	56	44	−3.6 µg/m³−31%
73	SyracuseNew York, United States	49	29	−3.5 µg/m³−40%
74	AndersonIndiana, United States	53	38	−3.5 µg/m³−34%
75	NorthbrookIllinois, United States	54	41	−3.5 µg/m³−32%
76	AnkenyIowa, United States	54	41	−3.5 µg/m³−32%
77	ParadiseCalifornia, United States	49	30	−3.5 µg/m³−39%
78	JerseyvilleIllinois, United States	52	34	−3.5 µg/m³−36%
79	Rose HillVirginia, United States	53	37	−3.5 µg/m³−35%
80	YoungstownOhio, United States	54	39	−3.5 µg/m³−33%
81	MoundsvilleWest Virginia, United States	54	41	−3.5 µg/m³−32%
82	YorkPennsylvania, United States	55	42	−3.5 µg/m³−32%
83	DecaturIllinois, United States	55	44	−3.5 µg/m³−31%
84	HarrisburgPennsylvania, United States	56	47	−3.5 µg/m³−29%
85	BearDelaware, United States	52	34	−3.5 µg/m³−36%
86	ZionIllinois, United States	52	33	−3.4 µg/m³−36%
87	Kennedy TownshipPennsylvania, United States	54	39	−3.4 µg/m³−32%
88	PittsburghPennsylvania, United States	54	42	−3.4 µg/m³−31%
89	LouisvilleKentucky, United States	55	44	−3.4 µg/m³−30%
90	CantonOhio, United States	56	47	−3.4 µg/m³−29%
91	ClevelandOhio, United States	57	49	−3.4 µg/m³−28%
92	Saint MichaelMinnesota, United States	53	38	−3.4 µg/m³−33%
93	YpsilantiMichigan, United States	53	38	−3.4 µg/m³−33%
94	BridgeportConnecticut, United States	51	33	−3.3 µg/m³−35%
95	Fort ThomasKentucky, United States	52	36	−3.3 µg/m³−34%
96	SpringfieldIllinois, United States	53	39	−3.3 µg/m³−32%
97	Saint PaulMinnesota, United States	54	42	−3.3 µg/m³−31%
98	LebanonPennsylvania, United States	55	44	−3.3 µg/m³−29%
99	Grand RapidsMichigan, United States	55	45	−3.3 µg/m³−29%
100	Granite CityIllinois, United States	56	47	−3.3 µg/m³−28%
101	BuffaloNew York, United States	53	37	−3.3 µg/m³−33%
102	NewarkDelaware, United States	54	41	−3.3 µg/m³−31%
103	New BrunswickNew Jersey, United States	51	33	−3.3 µg/m³−36%
104	Des MoinesIowa, United States	51	33	−3.3 µg/m³−36%
105	Kennett SquarePennsylvania, United States	53	38	−3.3 µg/m³−32%
106	DublinOhio, United States	56	46	−3.3 µg/m³−28%
107	West MifflinPennsylvania, United States	57	49	−3.3 µg/m³−27%
108	HazardKentucky, United States	52	37	−3.2 µg/m³−33%
109	ClevelandMississippi, United States	55	45	−3.2 µg/m³−28%
110	State CollegePennsylvania, United States	52	34	−3.2 µg/m³−34%
111	ReadingPennsylvania, United States	53	40	−3.2 µg/m³−31%
112	JeffersontownKentucky, United States	54	41	−3.2 µg/m³−30%
113	HammondIndiana, United States	54	43	−3.2 µg/m³−29%
114	Oak LawnIllinois, United States	54	43	−3.2 µg/m³−29%
115	EriePennsylvania, United States	51	33	−3.2 µg/m³−35%
116	CarlislePennsylvania, United States	54	41	−3.2 µg/m³−30%
117	Valley StationKentucky, United States	55	44	−3.2 µg/m³−29%
118	JeffersonvilleIndiana, United States	56	47	−3.2 µg/m³−28%
119	NorwoodOhio, United States	56	47	−3.2 µg/m³−27%
120	Franklin ParkIllinois, United States	55	46	−3.1 µg/m³−27%
121	MiddletownOhio, United States	57	51	−3.1 µg/m³−25%
122	LebanonOhio, United States	52	35	−3.1 µg/m³−33%
123	JohnstownPennsylvania, United States	52	38	−3.1 µg/m³−31%
124	SpringfieldOhio, United States	54	43	−3.1 µg/m³−28%
125	South LaurelMaryland, United States	45	28	−3.1 µg/m³−38%
126	BrainerdMinnesota, United States	51	33	−3.1 µg/m³−34%
127	NorristownPennsylvania, United States	53	39	−3.1 µg/m³−31%
128	Saint MatthewsKentucky, United States	53	39	−3.1 µg/m³−30%
129	KalamazooMichigan, United States	55	46	−3.1 µg/m³−27%
130	SharonvilleOhio, United States	52	36	−3.0 µg/m³−32%
131	MontgomeryAlabama, United States	54	42	−3.0 µg/m³−28%
132	SpringfieldMassachusetts, United States	49	33	−2.9 µg/m³−33%
133	WilkinsburgPennsylvania, United States	52	38	−2.9 µg/m³−30%
134	JenisonMichigan, United States	52	38	−2.9 µg/m³−30%
135	ScrantonPennsylvania, United States	52	39	−2.9 µg/m³−29%
136	Ferry PassFlorida, United States	53	41	−2.9 µg/m³−28%
137	CaryIllinois, United States	54	42	−2.9 µg/m³−28%
138	SteubenvilleOhio, United States	55	45	−2.9 µg/m³−26%
139	DuluthMinnesota, United States	51	34	−2.9 µg/m³−32%
140	TaylorMichigan, United States	53	40	−2.9 µg/m³−29%
141	AkronOhio, United States	53	41	−2.9 µg/m³−28%
142	Detroit LakesMinnesota, United States	51	36	−2.8 µg/m³−30%
143	Port HuronMichigan, United States	52	39	−2.8 µg/m³−29%
144	Jefferson HillsPennsylvania, United States	52	39	−2.8 µg/m³−28%
145	GreenfieldMassachusetts, United States	47	32	−2.8 µg/m³−33%
146	SpringfieldVirginia, United States	52	38	−2.8 µg/m³−29%
147	WarrenOhio, United States	54	44	−2.8 µg/m³−26%
148	ChicagoIllinois, United States	54	44	−2.8 µg/m³−26%
149	East Saint LouisIllinois, United States	56	49	−2.8 µg/m³−24%
150	HernandoMississippi, United States	56	49	−2.8 µg/m³−24%
151	Moses LakeWashington, United States	46	31	−2.7 µg/m³−33%
152	Lexington-FayetteKentucky, United States	51	37	−2.7 µg/m³−29%
153	DearbornMichigan, United States	57	52	−2.7 µg/m³−22%
154	PierreSouth Dakota, United States	36	21	−2.7 µg/m³−42%
155	AllentownPennsylvania, United States	52	37	−2.7 µg/m³−29%
156	PortageIndiana, United States	53	41	−2.7 µg/m³−27%
157	MiddlesboroKentucky, United States	54	43	−2.7 µg/m³−26%
158	MedinaOhio, United States	52	39	−2.7 µg/m³−28%
159	CincinnatiOhio, United States	54	46	−2.6 µg/m³−24%
160	North AdamsMassachusetts, United States	46	32	−2.6 µg/m³−31%
161	AshlandKentucky, United States	52	38	−2.6 µg/m³−28%
162	BayonneNew Jersey, United States	42	28	−2.6 µg/m³−34%
163	Redwood CityCalifornia, United States	47	33	−2.6 µg/m³−31%
164	Weirton HeightsWest Virginia, United States	48	34	−2.6 µg/m³−30%
165	WaterburyConnecticut, United States	50	36	−2.6 µg/m³−29%
166	SomersetKentucky, United States	51	37	−2.6 µg/m³−28%
167	McKeesportPennsylvania, United States	52	39	−2.6 µg/m³−27%
168	MasonOhio, United States	49	35	−2.5 µg/m³−28%
169	QuincyWashington, United States	36	22	−2.5 µg/m³−39%
170	Tri-CitiesWashington, United States	37	23	−2.5 µg/m³−37%
171	BenningtonVermont, United States	40	26	−2.5 µg/m³−35%
172	Airway HeightsWashington, United States	42	28	−2.5 µg/m³−33%
173	New AlbanyOhio, United States	44	31	−2.5 µg/m³−31%
174	GahannaOhio, United States	44	31	−2.5 µg/m³−31%
175	South VinelandNew Jersey, United States	47	33	−2.5 µg/m³−29%
176	BloomingtonIndiana, United States	50	36	−2.5 µg/m³−28%
177	DoverDelaware, United States	50	36	−2.5 µg/m³−28%
178	WashingtonDistrict of Columbia, United States	52	38	−2.5 µg/m³−27%
179	HuntsvilleAlabama, United States	52	41	−2.5 µg/m³−25%
180	SunnysideWashington, United States	53	42	−2.5 µg/m³−25%
181	RochesterNew York, United States	48	34	−2.5 µg/m³−29%
182	RichmondVirginia, United States	51	37	−2.5 µg/m³−27%
183	ChanuteKansas, United States	53	43	−2.5 µg/m³−25%
184	MeadWashington, United States	44	31	−2.4 µg/m³−30%
185	VirginiaMinnesota, United States	47	33	−2.4 µg/m³−29%
186	SuperiorWisconsin, United States	47	34	−2.4 µg/m³−28%
187	SpokaneWashington, United States	51	38	−2.4 µg/m³−26%
188	VermillionSouth Dakota, United States	51	38	−2.4 µg/m³−26%
189	New York CityNew York, United States	52	41	−2.4 µg/m³−24%
190	LincolnNebraska, United States	45	32	−2.4 µg/m³−30%
191	HermitagePennsylvania, United States	48	34	−2.4 µg/m³−28%
192	New HavenConnecticut, United States	48	34	−2.4 µg/m³−28%
193	MadrasOregon, United States	51	38	−2.4 µg/m³−26%
194	PoquosonVirginia, United States	51	38	−2.4 µg/m³−26%
195	RoanokeVirginia, United States	47	34	−2.3 µg/m³−27%
196	Winston-SalemNorth Carolina, United States	53	44	−2.3 µg/m³−22%
197	EvansvilleIndiana, United States	54	48	−2.3 µg/m³−21%
198	Alta SierraCalifornia, United States	40	27	−2.3 µg/m³−32%
199	CloquetMinnesota, United States	42	29	−2.3 µg/m³−30%
200	WenatcheeWashington, United States	43	30	−2.3 µg/m³−30%
201	New LondonConnecticut, United States	43	31	−2.3 µg/m³−29%
202	EphrataWashington, United States	44	32	−2.3 µg/m³−29%
203	PainesvilleOhio, United States	45	32	−2.3 µg/m³−28%
204	NewburghNew York, United States	45	32	−2.3 µg/m³−28%
205	ProsserWashington, United States	47	34	−2.3 µg/m³−27%
206	CharlottesvilleVirginia, United States	50	37	−2.3 µg/m³−26%
207	Coconut CreekFlorida, United States	52	40	−2.3 µg/m³−24%
208	RaleighNorth Carolina, United States	53	43	−2.3 µg/m³−23%
209	Phenix CityAlabama, United States	55	51	−2.2 µg/m³−19%
210	TexarkanaTexas, United States	56	52	−2.2 µg/m³−19%
211	New CityNew York, United States	40	28	−2.2 µg/m³−31%
212	Mount IvyNew York, United States	40	28	−2.2 µg/m³−31%
213	Fall RiverMassachusetts, United States	41	29	−2.2 µg/m³−30%
214	HalfwayMaryland, United States	41	29	−2.2 µg/m³−30%
215	HagerstownMaryland, United States	41	29	−2.2 µg/m³−30%
216	AthensTennessee, United States	49	37	−2.2 µg/m³−25%
217	PeoriaIllinois, United States	52	41	−2.2 µg/m³−23%
218	PaducahKentucky, United States	51	39	−2.2 µg/m³−24%
219	LindenNew Jersey, United States	52	42	−2.2 µg/m³−23%
220	PrienLouisiana, United States	55	49	−2.2 µg/m³−20%
221	ChattanoogaTennessee, United States	54	48	−2.1 µg/m³−19%
222	Spokane ValleyWashington, United States	44	32	−2.1 µg/m³−27%
223	AlbanyNew York, United States	49	37	−2.1 µg/m³−24%
224	WareMassachusetts, United States	37	25	−2.1 µg/m³−32%
225	EllensburgWashington, United States	38	26	−2.1 µg/m³−31%
226	North ChicopeeMassachusetts, United States	39	28	−2.1 µg/m³−30%
227	KearneyMissouri, United States	41	29	−2.1 µg/m³−29%
228	WorcesterMassachusetts, United States	42	31	−2.1 µg/m³−28%
229	HopewellVirginia, United States	44	33	−2.1 µg/m³−26%
230	PikevilleKentucky, United States	45	33	−2.1 µg/m³−26%
231	RochesterMinnesota, United States	54	48	−2.1 µg/m³−20%
232	JacksonMississippi, United States	54	48	−2.1 µg/m³−20%
233	Candler-McAfeeGeorgia, United States	55	51	−2.1 µg/m³−19%
234	FairviewGeorgia, United States	57	53	−2.1 µg/m³−17%
235	BlaineMinnesota, United States	49	38	−2.0 µg/m³−23%
236	MurraysvilleNorth Carolina, United States	38	27	−2.0 µg/m³−29%
237	UticaNew York, United States	41	30	−2.0 µg/m³−27%
238	HaverhillMassachusetts, United States	41	30	−2.0 µg/m³−27%
239	LimaOhio, United States	47	36	−2.0 µg/m³−24%
240	ClemmonsNorth Carolina, United States	52	42	−2.0 µg/m³−21%
241	GreensboroNorth Carolina, United States	53	45	−2.0 µg/m³−20%
242	FlatwoodsKentucky, United States	54	48	−2.0 µg/m³−19%
243	AlbanyGeorgia, United States	56	52	−2.0 µg/m³−17%
244	HartfordConnecticut, United States	46	34	−2.0 µg/m³−24%
245	StaytonOregon, United States	37	27	−1.9 µg/m³−28%
246	Hood RiverOregon, United States	39	28	−1.9 µg/m³−27%
247	ProvidenceRhode Island, United States	42	31	−1.9 µg/m³−25%
248	KeeneNew Hampshire, United States	44	33	−1.9 µg/m³−24%
249	DanburyConnecticut, United States	49	38	−1.9 µg/m³−22%
250	SulphurLouisiana, United States	54	50	−1.9 µg/m³−17%
251	HattiesburgMississippi, United States	55	51	−1.9 µg/m³−17%
252	HueytownAlabama, United States	55	52	−1.9 µg/m³−17%
253	FairfieldAlabama, United States	55	52	−1.9 µg/m³−17%
254	SpringdaleArkansas, United States	56	52	−1.9 µg/m³−16%
255	JacksonTennessee, United States	48	37	−1.9 µg/m³−22%
256	AthensGeorgia, United States	52	43	−1.9 µg/m³−20%
257	West GreenwichRhode Island, United States	36	26	−1.8 µg/m³−28%
258	Walla WallaWashington, United States	41	31	−1.8 µg/m³−24%
259	AberdeenSouth Dakota, United States	41	31	−1.8 µg/m³−24%
260	Coeur d'AleneIdaho, United States	47	37	−1.8 µg/m³−21%
261	TarboroNorth Carolina, United States	49	39	−1.8 µg/m³−20%
262	University CityMissouri, United States	49	39	−1.8 µg/m³−20%
263	PascagoulaMississippi, United States	52	44	−1.8 µg/m³−18%
264	EwingNew Jersey, United States	52	45	−1.8 µg/m³−18%
265	PhiladelphiaPennsylvania, United States	54	48	−1.8 µg/m³−17%
266	LeedsAlabama, United States	54	50	−1.8 µg/m³−17%
267	TruckeeCalifornia, United States	37	27	−1.8 µg/m³−27%
268	LibertyMissouri, United States	39	29	−1.8 µg/m³−26%
269	White PlainsNew York, United States	39	29	−1.8 µg/m³−25%
270	PittsfieldMassachusetts, United States	40	30	−1.8 µg/m³−25%
271	LoudonTennessee, United States	43	33	−1.8 µg/m³−23%
272	SalinasCalifornia, United States	43	33	−1.8 µg/m³−23%
273	HermistonOregon, United States	44	34	−1.8 µg/m³−22%
274	GreenvilleNorth Carolina, United States	44	34	−1.8 µg/m³−22%
275	BaltimoreMaryland, United States	47	37	−1.8 µg/m³−21%
276	HaysvilleKansas, United States	52	43	−1.8 µg/m³−19%
277	WatertownSouth Dakota, United States	52	43	−1.8 µg/m³−19%
278	KenmoreNew York, United States	48	38	−1.8 µg/m³−21%
279	Toms RiverNew Jersey, United States	48	38	−1.8 µg/m³−21%
280	ColumbusIndiana, United States	48	38	−1.8 µg/m³−21%
281	ModestoCalifornia, United States	53	48	−1.7 µg/m³−17%
282	St. LouisMissouri, United States	54	51	−1.7 µg/m³−16%
283	SchrieverLouisiana, United States	55	52	−1.7 µg/m³−15%
284	CoventryRhode Island, United States	33	24	−1.7 µg/m³−28%
285	QuincyMassachusetts, United States	38	29	−1.7 µg/m³−25%
286	WestonFlorida, United States	39	29	−1.7 µg/m³−24%
287	Palm BayFlorida, United States	41	31	−1.7 µg/m³−23%
288	Jersey CityNew Jersey, United States	47	37	−1.7 µg/m³−20%
289	OlatheKansas, United States	52	43	−1.7 µg/m³−18%
290	Mount VernonWashington, United States	26	16	−1.7 µg/m³−37%
291	PatersonNew Jersey, United States	48	38	−1.7 µg/m³−20%
292	ChesapeakeVirginia, United States	48	38	−1.7 µg/m³−20%
293	Kansas CityMissouri, United States	48	38	−1.7 µg/m³−20%
294	New AlbanyIndiana, United States	48	38	−1.7 µg/m³−20%
295	GulfportMississippi, United States	52	44	−1.7 µg/m³−18%
296	KnoxvilleTennessee, United States	53	47	−1.7 µg/m³−17%
297	TopekaKansas, United States	52	46	−1.6 µg/m³−16%
298	TulsaOklahoma, United States	53	48	−1.6 µg/m³−16%
299	Kansas CityKansas, United States	53	48	−1.6 µg/m³−16%
300	SebastopolCalifornia, United States	32	23	−1.6 µg/m³−28%
301	SilvertonOregon, United States	35	26	−1.6 µg/m³−25%
302	VancouverWashington, United States	36	27	−1.6 µg/m³−25%
303	KingsportTennessee, United States	42	33	−1.6 µg/m³−21%
304	Fort LeeNew Jersey, United States	47	38	−1.6 µg/m³−19%
305	GridleyCalifornia, United States	50	41	−1.6 µg/m³−18%
306	North CharlestonSouth Carolina, United States	51	42	−1.6 µg/m³−17%
307	DerbyKansas, United States	51	42	−1.6 µg/m³−17%
308	ToppenishWashington, United States	52	45	−1.6 µg/m³−16%
309	Columbia FallsMontana, United States	53	47	−1.6 µg/m³−16%
310	ArnoldMissouri, United States	46	38	−1.5 µg/m³−18%
311	SheltonWashington, United States	32	24	−1.5 µg/m³−26%
312	ShorelineWashington, United States	36	27	−1.5 µg/m³−23%
313	Sweet HomeOregon, United States	36	28	−1.5 µg/m³−23%
314	Southwest RanchesFlorida, United States	38	29	−1.5 µg/m³−22%
315	LowellMassachusetts, United States	38	30	−1.5 µg/m³−22%
316	BrocktonMassachusetts, United States	40	32	−1.5 µg/m³−21%
317	ParklandWashington, United States	41	32	−1.5 µg/m³−21%
318	The DallesOregon, United States	41	33	−1.5 µg/m³−20%
319	CambridgeMaryland, United States	41	33	−1.5 µg/m³−20%
320	BostonMassachusetts, United States	42	33	−1.5 µg/m³−20%
321	SpringfieldMissouri, United States	43	34	−1.5 µg/m³−19%
322	CookevilleTennessee, United States	44	36	−1.5 µg/m³−19%
323	MaryvilleTennessee, United States	47	38	−1.5 µg/m³−18%
324	YakimaWashington, United States	49	41	−1.5 µg/m³−17%
325	Bay CityMichigan, United States	50	42	−1.5 µg/m³−17%
326	WavelandMississippi, United States	52	44	−1.5 µg/m³−16%
327	HollandMichigan, United States	53	47	−1.5 µg/m³−15%
328	GreenvilleSouth Carolina, United States	53	49	−1.5 µg/m³−14%
329	MaconGeorgia, United States	54	51	−1.5 µg/m³−14%
330	East RidgeTennessee, United States	57	54	−1.5 µg/m³−12%
331	McDonoughGeorgia, United States	48	40	−1.5 µg/m³−17%
332	AlbanyOregon, United States	33	26	−1.4 µg/m³−23%
333	Sioux FallsSouth Dakota, United States	36	28	−1.4 µg/m³−22%
334	ColusaCalifornia, United States	44	36	−1.4 µg/m³−18%
335	Fruit CoveFlorida, United States	44	36	−1.4 µg/m³−18%
336	Daytona BeachFlorida, United States	46	38	−1.4 µg/m³−17%
337	KokomoIndiana, United States	47	39	−1.4 µg/m³−17%
338	Red HillSouth Carolina, United States	47	39	−1.4 µg/m³−16%
339	LafayetteIndiana, United States	49	42	−1.4 µg/m³−16%
340	MorrisvilleNorth Carolina, United States	52	44	−1.4 µg/m³−15%
341	SavannahGeorgia, United States	52	46	−1.4 µg/m³−15%
342	Warner RobinsGeorgia, United States	53	48	−1.4 µg/m³−14%
343	TrussvilleAlabama, United States	54	51	−1.4 µg/m³−13%
344	RanchettesWyoming, United States	31	23	−1.4 µg/m³−25%
345	Gardnerville RanchosNevada, United States	35	27	−1.4 µg/m³−22%
346	ConwaySouth Carolina, United States	48	40	−1.4 µg/m³−16%
347	AltamontOregon, United States	51	43	−1.4 µg/m³−15%
348	CheyenneWyoming, United States	30	23	−1.3 µg/m³−24%
349	GaryIndiana, United States	52	47	−1.3 µg/m³−13%
350	HartfordVermont, United States	34	27	−1.3 µg/m³−21%
351	HillsboroOregon, United States	35	28	−1.3 µg/m³−21%
352	LondonderryNew Hampshire, United States	35	28	−1.3 µg/m³−21%
353	SmithvilleNew Jersey, United States	39	32	−1.3 µg/m³−19%
354	Arroyo GrandeCalifornia, United States	40	33	−1.3 µg/m³−18%
355	SeattleWashington, United States	41	33	−1.3 µg/m³−18%
356	Safety HarborFlorida, United States	41	33	−1.3 µg/m³−18%
357	WellingtonFlorida, United States	42	35	−1.3 µg/m³−17%
358	RutlandVermont, United States	43	36	−1.3 µg/m³−17%
359	FlintMichigan, United States	47	40	−1.3 µg/m³−15%
360	JenksOklahoma, United States	52	46	−1.3 µg/m³−14%
361	GlenpoolOklahoma, United States	52	46	−1.3 µg/m³−14%
362	White OakOhio, United States	46	39	−1.2 µg/m³−14%
363	DentOhio, United States	46	39	−1.2 µg/m³−14%
364	EdmondOklahoma, United States	52	46	−1.2 µg/m³−13%
365	Ken CarylColorado, United States	32	25	−1.2 µg/m³−21%
366	ChehalisWashington, United States	32	26	−1.2 µg/m³−21%
367	CentraliaWashington, United States	32	26	−1.2 µg/m³−21%
368	DerryNew Hampshire, United States	33	27	−1.2 µg/m³−20%
369	DavisCalifornia, United States	36	29	−1.2 µg/m³−19%
370	SalemOregon, United States	36	29	−1.2 µg/m³−18%
371	PleasantvilleNew Jersey, United States	38	32	−1.2 µg/m³−17%
372	AuburnWashington, United States	41	34	−1.2 µg/m³−16%
373	OceanoCalifornia, United States	41	34	−1.2 µg/m³−16%
374	Oak GroveKentucky, United States	43	36	−1.2 µg/m³−16%
375	DyersburgTennessee, United States	43	37	−1.2 µg/m³−15%
376	White CenterWashington, United States	47	41	−1.2 µg/m³−14%
377	MercedCalifornia, United States	50	43	−1.2 µg/m³−13%
378	HighlandsTexas, United States	55	53	−1.2 µg/m³−10%
379	ElkhartIndiana, United States	51	46	−1.1 µg/m³−12%
380	CharlotteNorth Carolina, United States	51	46	−1.1 µg/m³−12%
381	AtlantaGeorgia, United States	52	48	−1.1 µg/m³−11%
382	FrostburgMaryland, United States	36	29	−1.1 µg/m³−17%
383	EdgewoodMaryland, United States	41	35	−1.1 µg/m³−15%
384	Fort SmithArkansas, United States	47	41	−1.1 µg/m³−13%
385	DentsvilleSouth Carolina, United States	49	43	−1.1 µg/m³−13%
386	North PortlandOregon, United States	26	20	−1.1 µg/m³−23%
387	McMinnvilleOregon, United States	27	21	−1.1 µg/m³−23%
388	LewistonMaine, United States	31	25	−1.1 µg/m³−20%
389	WoodburnOregon, United States	32	26	−1.1 µg/m³−19%
390	Rancho MurietaCalifornia, United States	36	30	−1.1 µg/m³−17%
391	PortsmouthNew Hampshire, United States	36	30	−1.1 µg/m³−17%
392	Port AngelesWashington, United States	39	33	−1.1 µg/m³−16%
393	ClarksvilleTennessee, United States	42	36	−1.1 µg/m³−15%
394	Palm CityFlorida, United States	42	36	−1.1 µg/m³−15%
395	Winter ParkFlorida, United States	42	36	−1.1 µg/m³−14%
396	BrunswickGeorgia, United States	47	41	−1.1 µg/m³−13%
397	TampaFlorida, United States	47	41	−1.1 µg/m³−13%
398	Miles CityMontana, United States	48	42	−1.1 µg/m³−13%
399	Yuba CityCalifornia, United States	48	42	−1.1 µg/m³−13%
400	TallahasseeFlorida, United States	52	46	−1.1 µg/m³−12%
401	Saint JosephMissouri, United States	52	47	−1.1 µg/m³−12%
402	MidwayFlorida, United States	52	48	−1.1 µg/m³−11%
403	FlorenceSouth Carolina, United States	52	49	−1.1 µg/m³−11%
404	GadsdenAlabama, United States	53	50	−1.1 µg/m³−11%
405	McCordsvilleIndiana, United States	46	41	−1.0 µg/m³−12%
406	SandpointIdaho, United States	49	43	−1.0 µg/m³−11%
407	BrookingsOregon, United States	24	19	−1.0 µg/m³−23%
408	FolsomCalifornia, United States	37	31	−1.0 µg/m³−15%
409	PendletonOregon, United States	38	32	−1.0 µg/m³−15%
410	PortlandMaine, United States	38	32	−1.0 µg/m³−15%
411	Roanoke RapidsNorth Carolina, United States	43	38	−1.0 µg/m³−13%
412	SarasotaFlorida, United States	43	38	−1.0 µg/m³−13%
413	New OrleansLouisiana, United States	45	39	−1.0 µg/m³−12%
414	SacramentoCalifornia, United States	48	42	−1.0 µg/m³−12%
415	LexingtonNorth Carolina, United States	51	46	−1.0 µg/m³−11%
416	FayettevilleNorth Carolina, United States	51	46	−1.0 µg/m³−11%
417	MooreOklahoma, United States	53	51	−1.0 µg/m³−10%
418	ThorntonColorado, United States	46	40	−1.0 µg/m³−12%
419	JacksonvilleFlorida, United States	46	40	−1.0 µg/m³−12%
420	PortlandOregon, United States	29	24	−0.9 µg/m³−17%
421	Salmon CreekWashington, United States	30	25	−0.9 µg/m³−17%
422	RidgefieldWashington, United States	30	25	−0.9 µg/m³−17%
423	PullmanWashington, United States	33	28	−0.9 µg/m³−15%
424	WillowsCalifornia, United States	39	34	−0.9 µg/m³−13%
425	DavieFlorida, United States	41	36	−0.9 µg/m³−12%
426	Sarasota SpringsFlorida, United States	43	38	−0.9 µg/m³−12%
427	Rapid CitySouth Dakota, United States	47	42	−0.9 µg/m³−11%
428	BrawleyCalifornia, United States	51	46	−0.9 µg/m³−10%
429	BendOregon, United States	53	51	−0.9 µg/m³−9%
430	TurlockCalifornia, United States	53	52	−0.9 µg/m³−9%
431	SpartanburgSouth Carolina, United States	54	52	−0.9 µg/m³−9%
432	RedfordMichigan, United States	56	55	−0.9 µg/m³−8%
433	BirminghamAlabama, United States	61	59	−0.9 µg/m³−6%
434	SolvangCalifornia, United States	28	23	−0.9 µg/m³−18%
435	TigardOregon, United States	38	33	−0.9 µg/m³−13%
436	BrookingsSouth Dakota, United States	39	34	−0.9 µg/m³−13%
437	OmahaNebraska, United States	43	38	−0.9 µg/m³−12%
438	Rio VistaCalifornia, United States	56	54	−0.9 µg/m³−8%
439	CharlestonWest Virginia, United States	44	39	−0.8 µg/m³−10%
440	Ponca CityOklahoma, United States	52	50	−0.8 µg/m³−8%
441	MaderaCalifornia, United States	53	51	−0.8 µg/m³−8%
442	Baton RougeLouisiana, United States	54	52	−0.8 µg/m³−8%
443	BaytownTexas, United States	55	54	−0.8 µg/m³−7%
444	DallasOregon, United States	24	19	−0.8 µg/m³−19%
445	AberdeenWashington, United States	25	21	−0.8 µg/m³−18%
446	BremertonWashington, United States	28	23	−0.8 µg/m³−16%
447	BeavertonOregon, United States	28	23	−0.8 µg/m³−16%
448	CanbyOregon, United States	32	27	−0.8 µg/m³−14%
449	Presque IsleMaine, United States	33	29	−0.8 µg/m³−13%
450	LynnMassachusetts, United States	36	32	−0.8 µg/m³−12%
451	RosevilleCalifornia, United States	42	37	−0.8 µg/m³−11%
452	LawtonOklahoma, United States	42	37	−0.8 µg/m³−11%
453	ColumbiaTennessee, United States	42	38	−0.8 µg/m³−11%
454	Delray BeachFlorida, United States	42	38	−0.8 µg/m³−11%
455	Deerfield BeachFlorida, United States	42	38	−0.8 µg/m³−11%
456	GreeleyColorado, United States	43	38	−0.8 µg/m³−10%
457	HarrimanTennessee, United States	43	39	−0.8 µg/m³−10%
458	BlairNebraska, United States	45	41	−0.8 µg/m³−10%
459	Bonita SpringsFlorida, United States	48	43	−0.8 µg/m³−9%
460	HomesteadFlorida, United States	46	41	−0.8 µg/m³−10%
461	PrichardAlabama, United States	51	47	−0.8 µg/m³−9%
462	Fort LauderdaleFlorida, United States	52	49	−0.8 µg/m³−8%
463	Fort WorthTexas, United States	53	51	−0.8 µg/m³−8%
464	ClaytonNorth Carolina, United States	46	42	−0.7 µg/m³−8%
465	La PorteTexas, United States	49	45	−0.7 µg/m³−8%
466	GreshamOregon, United States	29	25	−0.7 µg/m³−13%
467	Grass ValleyCalifornia, United States	32	28	−0.7 µg/m³−12%
468	North AuburnCalifornia, United States	35	31	−0.7 µg/m³−11%
469	ReddingCalifornia, United States	41	37	−0.7 µg/m³−9%
470	DenverColorado, United States	41	37	−0.7 µg/m³−9%
471	OaklandCalifornia, United States	44	41	−0.7 µg/m³−9%
472	FishersIndiana, United States	44	41	−0.7 µg/m³−9%
473	BellevueWashington, United States	22	18	−0.7 µg/m³−18%
474	BangorMaine, United States	31	27	−0.7 µg/m³−12%
475	LewistownMontana, United States	37	33	−0.7 µg/m³−11%
476	Spanish ForkUtah, United States	39	36	−0.7 µg/m³−10%
477	LemayMissouri, United States	42	38	−0.7 µg/m³−9%
478	ChicoCalifornia, United States	45	41	−0.7 µg/m³−9%
479	ScaggsvilleMaryland, United States	45	41	−0.7 µg/m³−9%
480	BanningCalifornia, United States	48	44	−0.7 µg/m³−8%
481	SeabrookTexas, United States	50	46	−0.7 µg/m³−8%
482	Lake CityFlorida, United States	52	49	−0.7 µg/m³−7%
483	LubbockTexas, United States	32	28	−0.6 µg/m³−11%
484	HobbsNew Mexico, United States	41	38	−0.6 µg/m³−8%
485	Forest GroveOregon, United States	25	22	−0.6 µg/m³−13%
486	GilroyCalifornia, United States	28	25	−0.6 µg/m³−12%
487	EugeneOregon, United States	36	33	−0.6 µg/m³−9%
488	LincolnCalifornia, United States	37	33	−0.6 µg/m³−9%
489	RockvilleMaryland, United States	37	33	−0.6 µg/m³−9%
490	TacomaWashington, United States	39	36	−0.6 µg/m³−9%
491	GainesvilleFlorida, United States	39	36	−0.6 µg/m³−8%
492	MagnaUtah, United States	41	37	−0.6 µg/m³−8%
493	Hunt ValleyMaryland, United States	45	42	−0.6 µg/m³−7%
494	OceansideCalifornia, United States	48	44	−0.6 µg/m³−7%
495	Venice GardensFlorida, United States	48	45	−0.6 µg/m³−7%
496	VeniceFlorida, United States	48	45	−0.6 µg/m³−7%
497	East LakeFlorida, United States	51	48	−0.6 µg/m³−7%
498	ValdostaGeorgia, United States	53	52	−0.6 µg/m³−6%
499	Great FallsMontana, United States	55	54	−0.6 µg/m³−5%
500	Little RockArkansas, United States	56	55	−0.6 µg/m³−5%
501	HanfordCalifornia, United States	57	56	−0.6 µg/m³−5%
502	HurricaneUtah, United States	24	22	−0.5 µg/m³−11%
503	Port TownsendWashington, United States	27	24	−0.5 µg/m³−10%
504	Cedar CityUtah, United States	28	25	−0.5 µg/m³−10%
505	LaconiaNew Hampshire, United States	29	27	−0.5 µg/m³−9%
506	RentonWashington, United States	42	39	−0.5 µg/m³−7%
507	Ponte Vedra BeachFlorida, United States	49	46	−0.5 µg/m³−6%
508	CorsicanaTexas, United States	51	48	−0.5 µg/m³−5%
509	NewportOregon, United States	21	18	−0.4 µg/m³−11%
510	Spanish SpringsNevada, United States	33	31	−0.4 µg/m³−7%
511	GaltCalifornia, United States	38	36	−0.4 µg/m³−6%
512	AshevilleNorth Carolina, United States	38	36	−0.4 µg/m³−6%
513	YumaArizona, United States	46	44	−0.4 µg/m³−5%
514	Arden-ArcadeCalifornia, United States	47	44	−0.4 µg/m³−5%
515	DentonTexas, United States	47	45	−0.4 µg/m³−5%
516	HickoryNorth Carolina, United States	51	48	−0.4 µg/m³−4%
517	Oklahoma CityOklahoma, United States	52	50	−0.4 µg/m³−4%
518	StocktonCalifornia, United States	53	52	−0.4 µg/m³−4%
519	GainesvilleGeorgia, United States	54	53	−0.4 µg/m³−4%
520	ShreveportLouisiana, United States	55	54	−0.4 µg/m³−4%
521	TulalipWashington, United States	11	9	−0.4 µg/m³−20%
522	MarysvilleWashington, United States	11	9	−0.4 µg/m³−20%
523	Makakilo / Kapolei / Honokai HaleHawaii, United States	28	26	−0.4 µg/m³−8%
524	LongviewWashington, United States	28	26	−0.4 µg/m³−8%
525	EnochUtah, United States	29	27	−0.4 µg/m³−8%
526	GilletteWyoming, United States	35	33	−0.4 µg/m³−6%
527	RaymoreMissouri, United States	35	33	−0.4 µg/m³−6%
528	DecaturAlabama, United States	43	41	−0.4 µg/m³−5%
529	West JordanUtah, United States	47	46	−0.3 µg/m³−4%
530	BakersfieldCalifornia, United States	57	57	−0.3 µg/m³−2%
531	VernalUtah, United States	32	30	−0.3 µg/m³−5%
532	RooseveltUtah, United States	38	36	−0.3 µg/m³−4%
533	Thousand OaksCalifornia, United States	39	37	−0.3 µg/m³−4%
534	Santa BarbaraCalifornia, United States	44	43	−0.3 µg/m³−4%
535	Long BeachCalifornia, United States	52	52	−0.3 µg/m³−3%
536	El CentroCalifornia, United States	47	46	−0.2 µg/m³−2%
537	KaufmanTexas, United States	47	46	−0.2 µg/m³−2%
538	Mission BendTexas, United States	52	52	−0.2 µg/m³−2%
539	LaramieWyoming, United States	18	17	−0.2 µg/m³−6%
540	North BendWashington, United States	19	18	−0.2 µg/m³−6%
541	Kailua-KonaHawaii, United States	20	19	−0.2 µg/m³−6%
542	Green ValleyArizona, United States	20	19	−0.2 µg/m³−6%
543	CorvallisOregon, United States	21	19	−0.2 µg/m³−5%
544	LompocCalifornia, United States	28	27	−0.2 µg/m³−4%
545	HerrimanUtah, United States	33	32	−0.2 µg/m³−3%
546	Cottage GroveOregon, United States	36	35	−0.2 µg/m³−3%
547	TempeArizona, United States	41	39	−0.2 µg/m³−3%
548	FairhopeAlabama, United States	42	41	−0.2 µg/m³−3%
549	BeltonTexas, United States	44	43	−0.2 µg/m³−3%
550	HiloHawaii, United States	18	17	−0.2 µg/m³−6%
551	San LeandroCalifornia, United States	37	36	−0.2 µg/m³−3%
552	Terre HauteIndiana, United States	51	49	−0.2 µg/m³−2%
553	AustinTexas, United States	53	53	−0.2 µg/m³−2%
554	BadgerAlaska, United States	57	56	−0.2 µg/m³−2%
555	ComptonCalifornia, United States	58	57	−0.2 µg/m³−2%
556	RichmondCalifornia, United States	53	53	−0.1 µg/m³−1%
557	Coos BayOregon, United States	23	23	−0.1 µg/m³−2%
558	VacavilleCalifornia, United States	27	27	−0.1 µg/m³−2%
559	BellevueNebraska, United States	44	43	−0.1 µg/m³−1%
560	FlorenceOregon, United States	23	22	−0.1 µg/m³−2%
561	San Luis ObispoCalifornia, United States	27	26	−0.1 µg/m³−2%
562	San RafaelCalifornia, United States	31	30	−0.1 µg/m³−2%
563	Rio RanchoNew Mexico, United States	39	38	−0.1 µg/m³−1%
564	San DiegoCalifornia, United States	52	52	−0.1 µg/m³−1%
565	Wells BranchTexas, United States	54	54	−0.1 µg/m³−1%

Means in US AQI over the days a city was measured in both years, the same calendar days each year; a city needs 55% of the days paired, and at least 30. The change is in µg/m³ and per cent. How we compare.

Good0–50

Moderate51–100

Sensitive groups101–150

Unhealthy151–200

Very unhealthy201–300

Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Updated 2026-10-07 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.