SmogRank / History / week of July 13, 2026

Most polluted cities, week of July 13, 2026

2,317 cities ranked by their average PM2.5 over the 7 days. A city needs measurements on 70% of the days to be ranked.

#	City	µg/m³
1	Superior Wisconsin, United States	175.9
2	Marquette Michigan, United States	174.2
3	Duluth Minnesota, United States	149.2
4	Windsor Ontario, Canada	105.5
5	Sarnia Ontario, Canada	105.4
6	Royal Oak low-cost sensors Michigan, United States	105.1
6	Perrysburg Ohio, United States	105.1
8	Port Huron Michigan, United States	104.5
9	Green Bay Wisconsin, United States	103.1
10	Guwahati Assam, India	100.7
11	Mérida Yucatán, Mexico	99.9
12	Gurugram Haryana, India	99.8
12	Oregon Ohio, United States	99.8
14	Appleton Wisconsin, United States	99.1
15	Detroit Michigan, United States	97.8
15	St. Thomas Ontario, Canada	97.8
17	Sault Ste. Marie Ontario, Canada	97.5
18	Lincoln Park Michigan, United States	96.3
19	Dearborn Michigan, United States	95.6
20	Grand Rapids Michigan, United States	95.5
21	Sonīpat Haryana, India	95.2
22	Southfield Michigan, United States	95.1
23	Kinshasa low-cost sensors Kinshasa, Democratic Republic of the Congo	94.6
24	Bay City Michigan, United States	94.0
24	London Ontario, Canada	94.0
26	Toledo Ohio, United States	93.5
27	Taylor Michigan, United States	90.8
28	Jenison Michigan, United States	89.4
29	Bahadurgarh Haryana, India	89.2
30	Brookfield low-cost sensors Wisconsin, United States	89.0
31	Northbrook Illinois, United States	88.4
32	Eastpointe Michigan, United States	87.2
32	Lansing Michigan, United States	87.2
34	Ypsilanti Michigan, United States	86.9
35	Ropar Punjab, India	86.3
36	Waukesha Wisconsin, United States	86.1
37	Brantford Ontario, Canada	86.0
38	Kaithal Haryana, India	84.8
39	Elgin Illinois, United States	84.3
39	Flint Michigan, United States	84.3
41	Kitchener Ontario, Canada	83.5
42	Oconomowoc low-cost sensors Wisconsin, United States	82.5
43	Chatham Ontario, Canada	78.4
44	Rājgīr Bihar, India	77.9
45	Jīnd Haryana, India	77.4
46	South Milwaukee Wisconsin, United States	77.3
47	Bhiwāni Haryana, India	76.5
47	Zion Illinois, United States	76.5
49	Medina Ohio, United States	76.0
50	Kampala low-cost sensors Central Region, Uganda	75.9
51	Elmwood Park Illinois, United States	75.8
52	Guelph Ontario, Canada	75.0
53	Franklin Park Illinois, United States	73.8
54	Karnāl Haryana, India	73.5
55	Wyoming Michigan, United States	73.2
56	Kalamazoo Michigan, United States	72.4
57	Cleveland Ohio, United States	71.4
58	Redford Michigan, United States	71.0
59	Hamilton Ontario, Canada	70.9
60	Steubenville Ohio, United States	70.7
61	Dolton Illinois, United States	70.3
61	Oak Lawn Illinois, United States	70.3
61	Milton Ontario, Canada	70.3
64	Des Plaines Illinois, United States	70.1
65	Bridgeview Illinois, United States	69.8
66	Naperville Illinois, United States	69.5
67	Lilongwe low-cost sensors Central Region, Malawi	69.2
67	Cary Illinois, United States	69.2
69	Evanston low-cost sensors Illinois, United States	68.9
70	Wheaton low-cost sensors Illinois, United States	68.5
71	Yellowknife low-cost sensors Northwest Territories, Canada	68.0
72	Canton Ohio, United States	67.9
73	Holland Michigan, United States	67.8
74	Chicago Illinois, United States	67.2
75	Dhāruhera Haryana, India	66.9
75	Shaker Heights Ohio, United States	66.9
77	Brookfield Illinois, United States	65.7
78	Dera Māndi Delhi, India	64.2
79	Rockford Illinois, United States	63.8
80	Cleveland Heights Ohio, United States	63.6
81	Warren Ohio, United States	63.1
82	Portage Indiana, United States	62.3
83	Weirton West Virginia, United States	62.0
84	Faridabad Haryana, India	61.4
84	Oakville Ontario, Canada	61.4
86	Anantapur Andhra Pradesh, India	61.3
87	Waterdown Ontario, Canada	61.2
88	Madison Wisconsin, United States	61.1
89	Pittsburgh Pennsylvania, United States	60.8
90	Erie Pennsylvania, United States	60.7
91	Akron Ohio, United States	60.5
91	Upper Saint Clair Pennsylvania, United States	60.5
91	Middleton low-cost sensors Wisconsin, United States	60.5
94	Hammond Indiana, United States	60.1
95	East Chicago Indiana, United States	59.5
96	Philadelphia Pennsylvania, United States	58.8
96	Brampton Ontario, Canada	58.8
98	Yamuna Nagar Haryana, India	58.7
99	Newmarket Ontario, Canada	58.5
100	Eau Claire Wisconsin, United States	58.4
101	Calumet City Illinois, United States	58.3
102	Gummidipundi Tamil Nadu, India	57.9
102	Elkhart Indiana, United States	57.9
104	Gujranwala low-cost sensors Punjab, Pakistan	57.8
105	Lebanon Pennsylvania, United States	57.6
106	Thānesar Haryana, India	57.5
106	Carlisle Pennsylvania, United States	57.5
108	York Pennsylvania, United States	57.2
109	Harrisburg Pennsylvania, United States	56.7
110	West Mifflin Pennsylvania, United States	56.3
111	Aurora Illinois, United States	56.2
112	Wilkinsburg Pennsylvania, United States	55.7
113	State College Pennsylvania, United States	55.4
114	Johnstown Pennsylvania, United States	55.3
115	Beitbridge low-cost sensors Matabeleland South Province, Zimbabwe	55.2
116	Gary Indiana, United States	54.7
117	Skokie low-cost sensors Illinois, United States	54.3
118	Muzaffarnagar Uttar Pradesh, India	54.2
119	Alliston Ontario, Canada	54.0
119	Bhiwadi Rajasthan, India	54.0
121	Niles low-cost sensors Illinois, United States	53.9
122	Park Ridge low-cost sensors Illinois, United States	53.8
123	Hermitage Pennsylvania, United States	53.7
123	Barrie Ontario, Canada	53.7
125	South Bend Indiana, United States	53.6
126	Ambāla Haryana, India	53.5
127	Youngstown Ohio, United States	53.4
128	Blaine Minnesota, United States	53.3
129	Chambersburg Pennsylvania, United States	53.1
130	Dādri Uttar Pradesh, India	52.8
131	Karonga low-cost sensors Northern Region, Malawi	51.8
131	Neelankarai Tamil Nadu, India	51.8
133	Mississauga Ontario, Canada	51.6
134	Lancaster Pennsylvania, United States	51.3
135	Toronto Ontario, Canada	51.1
136	Camden low-cost sensors New Jersey, United States	51.0
137	Pennsauken New Jersey, United States	50.9
138	Weirton Heights West Virginia, United States	50.3
139	Vereeniging low-cost sensors Gauteng, South Africa	50.1
139	McKeesport Pennsylvania, United States	50.1
139	St. Catharines Ontario, Canada	50.1
142	Antananarivo Analamanga, Madagascar	49.9
143	Saint Cloud Minnesota, United States	49.5
144	Norristown Pennsylvania, United States	49.3
145	Westerville Ohio, United States	48.9
146	Ghāziābād Uttar Pradesh, India	48.8
146	Fort Wayne Indiana, United States	48.8
148	Buffalo New York, United States	48.7
149	Altoona Pennsylvania, United States	48.5
150	Lahore low-cost sensors Punjab, Pakistan	48.3
150	Michigan City Indiana, United States	48.3
152	Meerut Uttar Pradesh, India	48.1
153	Joda Odisha, India	48.0
154	Evergreen Park low-cost sensors Illinois, United States	47.6
155	Noida Uttar Pradesh, India	47.5
156	Sirsa Haryana, India	47.4
156	Manchester low-cost sensors England, United Kingdom	47.4
158	Wilmington Delaware, United States	47.2
159	Blue Island low-cost sensors Illinois, United States	47.1
159	Bethlehem Pennsylvania, United States	47.1
161	Joliet Illinois, United States	47.0
162	Reading Pennsylvania, United States	46.7
163	Burnsville Minnesota, United States	46.6
164	Blantyre low-cost sensors Southern Region, Malawi	46.4
165	Delhi Delhi, India	46.2
165	Minneapolis Minnesota, United States	46.2
167	Chāpra Bihar, India	45.5
167	Saint Paul Minnesota, United States	45.5
169	Saint Michael Minnesota, United States	45.2
170	Abington low-cost sensors Pennsylvania, United States	44.7
170	Bensalem Pennsylvania, United States	44.7
172	Newark Delaware, United States	44.6
173	Hāpur Uttar Pradesh, India	44.4
174	Jammu low-cost sensors Jammu and Kashmir, India	44.2
175	Chester Pennsylvania, United States	43.5
176	Karauli Rajasthan, India	43.4
177	Ashburn Virginia, United States	43.1
178	Bear Delaware, United States	43.0
179	Sialkot low-cost sensors Punjab, Pakistan	42.9
180	Narela Delhi, India	42.7
181	Dover Delaware, United States	42.5
181	Columbus Ohio, United States	42.5
183	Gwalior Madhya Pradesh, India	42.4
184	Lima Ohio, United States	42.2
184	Greater Noida Uttar Pradesh, India	42.2
186	Faisalabad low-cost sensors Punjab, Pakistan	42.1
187	Dhaka low-cost sensors Dhaka Division, Bangladesh	41.8
188	Baddi Himachal Pradesh, India	41.7
189	Chittoor Andhra Pradesh, India	41.6
190	Rasapūdipalem Andhra Pradesh, India	41.2
191	Palembang low-cost sensors South Sumatra, Indonesia	40.6
192	Jaipur Rajasthan, India	40.2
192	Hagerstown Maryland, United States	40.2
194	Tongaat low-cost sensors KwaZulu-Natal, South Africa	40.1
195	Zomba low-cost sensors Southern Region, Malawi	39.9
195	Panchkula Haryana, India	39.9
197	New York City New York, United States	39.6
198	New Brunswick New Jersey, United States	39.4
199	Elkton Maryland, United States	39.3
200	Springfield Virginia, United States	39.0

Top 200 of 2,317 shown.

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