All 2,894 cities by PM2.5, last 7 days

Every city with enough measurements in this window, worst first.

CPCB in India: no readings since 12 Oct (488 monitors). EEA and Catalonia Medi Ambient I Sostenibilitat in Spain: no readings since 13 Oct (336 monitors). Their cities show older figures or are missing from this board, not clean.

Hide the 297 cities with only 1–2 sensors

These cities have only one or two low-cost sensors, and one cheap unit can read well off, so they take no rank. They sit at their place by value, marked –, and every ranked city keeps its number.

=2527Villingen-SchwenningenBaden-Wurttemberg, Germany 21 US AQI▲63
=2527RoscommonConnacht, Ireland 21 US AQI▲112
=2527VichyAuvergne-Rhône-Alpes, France 21 US AQI▼100
=2527Saint-Étienne-de-MontlucPays de la Loire, France 21 US AQI▲67
=2527NîmesOccitanie, France 21 US AQI▼203
=2527MarignaneProvence-Alpes-Côte d'Azur, France 21 US AQI▼97
=2527Fos-sur-MerProvence-Alpes-Côte d'Azur, France 21 US AQI▲137
=2527ArlesProvence-Alpes-Côte d'Azur, France 21 US AQI▼350
=2527ShannonMunster, Ireland 21 US AQI▲182
=2527Palm BayFlorida, United States 21 US AQI▲116
=2527MarquetteMichigan, United States 21 US AQI▼154
=2527Albanylast full day 11 OctNew York, United States 21 US AQI▲160
=2527Holbrooklast full day 11 OctNew York, United States 21 US AQI▲161
=2527White Plainslast full day 11 OctNew York, United States 21 US AQI▲185
=2527NorristownPennsylvania, United States 21 US AQI▲217
=2527RutlandVermont, United States 21 US AQI▲95
=2527IndioCalifornia, United States 21 US AQI▲46
=2527Liberty LakeWashington, United States 21 US AQI▼14
=2527FairbanksAlaska, United States 21 US AQI▲100
=2527Medicine HatAlberta, Canada 21 US AQI▼81
=2527Trois-RivièresQuebec, Canada 21 US AQI▲79
not rankedVaterstettenBavaria, Germany 21 US AQI
not rankedBeaumontCalifornia, United States 21 US AQI
=2559Naujoji AkmeneSiauliai, Lithuania 21 US AQI▼41
=2559LeicesterEngland, United Kingdom 21 US AQI▲23
=2559BarnsleyEngland, United Kingdom 21 US AQI▼38
=2559Ashton-under-Lynelast full day 11 OctEngland, United Kingdom 21 US AQI▲100
=2559Zell am SeeSalzburg, Austria 21 US AQI▼37
=2559FreiburgBaden-Wurttemberg, Germany 21 US AQI▼102
=2559Frankfurt (Oder)Brandenburg, Germany 21 US AQI▼460
=2559NiortNew Aquitaine, France 21 US AQI▼68
=2559Montoir-de-BretagnePays de la Loire, France 21 US AQI▼130
=2559Mont-de-MarsanNew Aquitaine, France 21 US AQI▼66
=2559MontaubanOccitanie, France 21 US AQI▼99
=2559LimogesNew Aquitaine, France 21 US AQI▼128
=2559Bellegarde-sur-ValserineAuvergne-Rhône-Alpes, France 21 US AQI▼61
=2559SamaAsturias, Spain 21 US AQI
=2559Sondriolast full day 11 OctLombardy, Italy 21 US AQI
=2559HalfwayMaryland, United States 21 US AQI▲60
=2559BostonMassachusetts, United States 21 US AQI▲232
=2559PittsfieldMassachusetts, United States 21 US AQI▲202
=2559BrookfieldWisconsin, United States 21 US AQI▲283
=2559AlpineCalifornia, United States 21 US AQI▲90
=2559HendersonNevada, United States 21 US AQI▲45
=2559Spring ValleyNevada, United States 21 US AQI▲64
=2559EnochUtah, United States 21 US AQI▼146
=2559EphrataWashington, United States 21 US AQI▼48
=2559SpokaneWashington, United States 21 US AQI▼87
=2559Sherwood ParkAlberta, Canada 21 US AQI▲119
not rankedCoalvilleEngland, United Kingdom 21 US AQI
not rankedWeilheimBavaria, Germany 21 US AQI
not rankedCentrevilleVirginia, United States 21 US AQI
=2585TartuTartu, Estonia 20 US AQI▲111
=2585FunchalMadeira, Portugal 20 US AQI▲47
=2585SouthamptonEngland, United Kingdom 20 US AQI▲112
=2585MiddlewichEngland, United Kingdom 20 US AQI▲71
=2585CoventryEngland, United Kingdom 20 US AQI▲73
=2585BorehamwoodEngland, United Kingdom 20 US AQI▲51
=2585BlackburnEngland, United Kingdom 20 US AQI▲115
=2585BexleyEngland, United Kingdom 20 US AQI▲2
=2585BarnstapleEngland, United Kingdom 20 US AQI▲203
=2585HoensbroekLimburg, The Netherlands 20 US AQI▼161
=2585TournaiWallonia, Belgium 20 US AQI▼417
=2585NaasLeinster, Ireland 20 US AQI▲120
=2585ValenceAuvergne-Rhône-Alpes, France 20 US AQI▼227
=2585SorbiersAuvergne-Rhône-Alpes, France 20 US AQI▼191
=2585RambouilletÎle-de-France, France 20 US AQI▼97
=2585MoulinsAuvergne-Rhône-Alpes, France 20 US AQI▼93
=2585ChâteaurouxCentre-Val de Loire, France 20 US AQI▼189
=2585Zielona GóraLubusz, Poland 20 US AQI
=2585OviedoAsturias, Spain 20 US AQI
=2585Rabo de PeixeAzores, Portugal 20 US AQI
=2585Fort-de-FranceMartinique, Martinique 20 US AQI▲80
=2585PaulsboroNew Jersey, United States 20 US AQI▲174
=2585New LondonConnecticut, United States 20 US AQI▲205
=2585Fall RiverMassachusetts, United States 20 US AQI▲207
=2585Rochesterlast full day 11 OctNew York, United States 20 US AQI▲157
=2585Green ValleyArizona, United States 20 US AQI▲63
=2585CrestlineCalifornia, United States 20 US AQI▼13
=2585Carson CityNevada, United States 20 US AQI▲130
=2585EnterpriseNevada, United States 20 US AQI▲66
=2585KīheiHawaii, United States 20 US AQI▲140
=2585BécancourQuebec, Canada 20 US AQI▲92
=2585BellevilleOntario, Canada 20 US AQI▲215
=2585SaskatoonSaskatchewan, Canada 20 US AQI▲144
=2585St. AlbertAlberta, Canada 20 US AQI▲145
=2585Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada 20 US AQI▲94
not rankedLohr am MainBavaria, Germany 20 US AQI
=2620Saint-DenisReunion, Reunion 19 US AQI▲111
=2620LavertonVictoria, Australia 19 US AQI
=2620YorkEngland, United Kingdom 19 US AQI▲60
=2620SunderlandEngland, United Kingdom 19 US AQI▲13
=2620NorwichEngland, United Kingdom 19 US AQI▲61
=2620NewportWales, United Kingdom 19 US AQI▲167
=2620MansfieldEngland, United Kingdom 19 US AQI▼12
=2620LutonEngland, United Kingdom 19 US AQI▲14
=2620ImminghamEngland, United Kingdom 19 US AQI▲15
=2620HayesEngland, United Kingdom 19 US AQI▼36
=2620HartlepoolEngland, United Kingdom 19 US AQI▼11
=2620EdinburghScotland, United Kingdom 19 US AQI▼35

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 1–2 sensors, not ranked About these marks

Low-cost sensors: consumer units, counted only in cities with no government-grade monitor; they read close to reference monitors on the whole, but 15 to 25% high in humid air. How we use them.

Good0–50

Moderate51–100

Unhealthy for 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

Not covered: the government monitoring networks of China, Turkey and Iran, which publish only on their own websites. We are building the reader for China's network. The networks of Turkey and Iran don't answer requests from outside their countries, so we can't read them. Most cities there are missing from this board, not clean. Why.

Use this board

SmogRank, all cities ranked by mean PM2.5 (µg/m³), last 7 days to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 5 or more of the 7 days. Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=7d. Ranked on low-cost sensors, with no reference monitor in the city: #1 Kuala Lumpur, #3 Dhaka, #4 Faisalabad, #5 Kasur, #6 Gujranwala, #7 Lahore, #8 Peshawar, #9 Multan and #10 Jakarta. Some readings from Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); Aurassure; Department of Environment, Nepal; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published.

Download top 10 (PNG)

You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Updated 2026-10-14 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some readings: Vietnam's government monitors; Uzhydromet (Uzbekistan's Hydrometeorological Service); Aurassure; Department of Environment, Nepal; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).