World City rankings

Dirties Cities in the World

Kathmandu has the highest Pollution Index in 2026 (95.7), followed by Tetovo (95.6) and Faridabad (94.5). Rio de Janeiro has the lowest (67.7).

94 of 1,103 cities

Pollution Index, 2026

Green is better, red is worse (lower is better). Click a place to highlight it.

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Ranking

Best first: the first 15 and last 5 of 94 cities.

Distribution Median and middle halfThe median is the middle value: half of places are above it, half below. The middle half is the range holding the central 50% of places.More in the glossary →

Each dot is one city; the lines mark the median and the middle half.

Median
78.7
Middle half 71.8 – 87.2
Average
79.8
94 cities
Lowest (best)
67.7
Rio de Janeiro
Highest (worst)
95.7
Kathmandu

Over time · 2024–2026

The top 5 in 2026, against the median.

  • Median of all cities
  • Rio de Janeiro
  • Turin
  • Milan
  • Sofia
  • Guangzhou

Data

Click a column to sort, a row to highlight that place on the charts.

135 cities · # = rank by Pollution Index
#
1Rio de Janeiro67.7119.2—
2Turin67.8129.0—
3Milan67.9127.0—
3Sofia67.9126.8—
5Guangzhou68.1118.9—
6Shanghai68.3119.8—
7Bandung68.5119.0—
8Belgrade69.2124.0—
9Haifa69.3127.1—
10Yekaterinburg69.4120.5—
11Krakow69.8136.9—
12Bogota69.9129.2—
13Makati70.0123.3—
14Kochi70.6123.2—
15Santiago70.7135.2—
15Kingston70.7124.3—
17Guayaquil70.9124.3—
18Chengdu71.0128.2—
19Pune71.1123.9—
19Kuwait City71.1126.1—
21Vijayawada71.2124.7—
22Monterrey71.3130.8—
23Baguio71.6128.1—
24Tbilisi71.8131.1—
25Ahmedabad71.9125.7—
26Marseille72.3132.4—
27Caracas72.5128.0—
28Belgaum73.1129.9—
29Alexandria73.8129.6—
30Tunis74.0129.8—
31Chennai74.1129.4—
31Baku74.1129.8—
33Addis Ababa75.2131.7—
34Bucharest75.4135.0—
35Bishkek75.6142.2—
36Guwahati75.8133.7—
37Hyderabad75.9133.0—
38Brescia76.3138.5—
39Amman76.9135.2—
40Beijing77.2136.4—
40Phnom Penh77.2136.8—
42Santo Domingo77.4136.7—
43Bangkok77.7137.9—
44Chiang Mai77.8141.6—
45Lucknow77.9138.652.4 µg/m³
46Kolkata78.3138.751.0 µg/m³
47Naples78.5140.4—
48Almaty78.8148.9—
49Lahore78.9141.888.9 µg/m³
50Sao Paulo79.4142.2—
51Nairobi79.8142.3—
52Tehran80.3151.7—
52Mexico City80.3144.8—
54Jalandhar80.5143.3—
55Casablanca82.1146.3—
55Harare82.1146.8—
57Meerut82.3146.261.8 µg/m³
58Gwalior83.0147.450.5 µg/m³
58Skopje83.0157.0—
60Mumbai83.2148.0—
61Quezon City83.4149.4—
62Krasnoyarsk83.8161.2—
63Amritsar84.3150.5—
63Cebu84.3150.6—
65Lima84.4151.0—
66Taichung85.1152.7—
66Chelyabinsk85.1153.3—
68Jakarta85.2152.4—
69Tirana87.0155.5—
70Ludhiana87.1156.952.8 µg/m³
71Raipur87.2157.4—
72Varanasi87.7156.8—
73Kanpur88.3158.5—
74Lagos88.5158.0—
75Allahabad88.9160.8—
76Accra89.2160.3—
77Hanoi89.3161.8—
77Patna89.3162.454.8 µg/m³
79Manila89.5161.5—
80Karachi89.6160.3—
81Kabul89.7161.2—
82Delhi90.3164.699.6 µg/m³
83Cairo90.6163.3—
84Gurgaon90.8164.4—
85Yangon90.9164.0—
86Noida91.2166.580.5 µg/m³
87Ghaziabad91.8166.082.2 µg/m³
88Ho Chi Minh City92.1166.9—
89Beirut93.7168.7—
90Dhaka94.2170.468.0 µg/m³
91Ulaanbaatar94.4174.1—
92Faridabad94.5171.0—
93Tetovo95.6174.3—
94Kathmandu95.7173.6—
—Kinshasa——50.2 µg/m³
—Jaipur——50.7 µg/m³
—Faisalabad——98.8 µg/m³
—Rawalpindi——49.1 µg/m³
—Visakhapatnam——51.8 µg/m³
—Multan——71.1 µg/m³
—Peshawar——81.7 µg/m³
—Aurangabad——53.0 µg/m³
—Srinagar——48.4 µg/m³
—Kota——47.9 µg/m³
—Bac Ninh——48.7 µg/m³
—Asansol——52.2 µg/m³
—Chandigarh——54.3 µg/m³
—Thai Nguyen——56.4 µg/m³
—Dushanbe——57.3 µg/m³
—Islamabad——48.3 µg/m³
—Sialkot——78.6 µg/m³
—Bahawalpur——67.7 µg/m³
—Muzaffarnagar——69.1 µg/m³
—Cuttack——47.3 µg/m³
—Durgapur——53.6 µg/m³
—Khulna——52.7 µg/m³
—Jhang——63.6 µg/m³
—Sukkur——88.6 µg/m³
—Begusarai——48.3 µg/m³
—Sikar——47.9 µg/m³
—Hapur——67.7 µg/m³
—Bulandshahr——64.5 µg/m³
—Vapi——48.6 µg/m³
—Fergana——68.8 µg/m³
—Pali——57.7 µg/m³
—Mirpur Khas——57.7 µg/m³
—Singrauli——62.9 µg/m³
—Haldia——47.5 µg/m³
—Mandi Bahauddin——74.4 µg/m³
—Tonk——49.6 µg/m³
—Chittoor——48.3 µg/m³
—Igdir——64.4 µg/m³
—Hanumangarh——49.6 µg/m³
—Lodhran——85.3 µg/m³
—Pattoki——86.7 µg/m³

What correlates with Pollution Index (2026)?

Pearson r against 12 other city metrics sharing at least 57 cities. Ranks are read by standing: a better rank counts as higher, whether rank 1 is the best place on a list or the worst. Correlation is not causation.

Higher together

Places that have a higher Pollution Index tend to score higher on these (or rank better)

  1. Urban Area DensityLargest City in the World by Area
    r = +0.38 · moderate · n = 81
    Plot
  2. Population Density (pop. per mi²)Population Density by City
    r = +0.37 · moderate · n = 80
    Plot
  3. Population Density (Pop. per km²)Population Density by City
    r = +0.37 · moderate · n = 80
    Plot
  4. Population Density RankPopulation Density by CityA rank: rank 1 is the best
    r = +0.26 · weak · n = 80
    Plot
  5. Population Growth Rate
    r = +0.17 · weak · n = 94
    Plot

Opposite directions

Places that have a higher Pollution Index tend to score lower on these (or rank worse)

  1. City Size (km²)Population Density by City
    r = −0.15 · weak · n = 80
    Plot
  2. City Size (mi²)Population Density by City
    r = −0.15 · weak · n = 80
    Plot
  3. Urban Area (sq. km.)Largest City in the World by Area
    r = −0.14 · weak · n = 81
    Plot
  4. Urban Area (sq. mi.)Largest City in the World by Area
    r = −0.14 · weak · n = 81
    Plot

Quick answers

Which world city has the highest Pollution Index?
Kathmandu has the highest Pollution Index in 2026, at 95.7, followed by Tetovo (95.6) and Faridabad (94.5).
Which world city has the lowest Pollution Index?
Rio de Janeiro has the lowest Pollution Index in 2026, at 67.7.
What is the median Pollution Index across world cities?
The median is 78.7 across the 94 world cities with data in 2026.
Where does this dirties cities in the world data come from?
Rankodex compiles it from World Population Review and the primary sources it cites: World's most polluted cities - IQAir; Pollution Index by City 2026 - Numbeo. Last updated 2026-10-28.

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