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.

=2068TübingenBaden-Wurttemberg, Germany 29 US AQI▲26
=2068Frankfurt am MainHesse, Germany 29 US AQI▲144
=2068Le HavreNormandy, France 29 US AQI▼361
=2068ZierbenaBasque Country, Spain 29 US AQI
=2068PhiladelphiaPennsylvania, United States 29 US AQI▲334
=2068ColumbiaTennessee, United States 29 US AQI▲396
=2068CookevilleTennessee, United States 29 US AQI▲269
=2068DyersburgTennessee, United States 29 US AQI▲199
=2068HopewellVirginia, United States 29 US AQI▲200
=2068Presque IsleMaine, United States 29 US AQI▲201
=2068EwingNew Jersey, United States 29 US AQI▲123
=2068PatersonNew Jersey, United States 29 US AQI▲231
=2068TrentonNew Jersey, United States 29 US AQI▲438
=2068BensalemPennsylvania, United States 29 US AQI▲273
=2068Jefferson HillsPennsylvania, United States 29 US AQI▼106
=2068BanningCalifornia, United States 29 US AQI▲125
=2068FolsomCalifornia, United States 29 US AQI▲126
=2068BismarckNorth Dakota, United States 29 US AQI▲13
=2068Rapid CitySouth Dakota, United States 29 US AQI▼22
=2068Brigham CityUtah, United States 29 US AQI▼203
=2068BremertonWashington, United States 29 US AQI▲16
=2068Port AngelesWashington, United States 29 US AQI▲348
=2068St. ThomasOntario, Canada 29 US AQI▲482
=2068L'Ancienne-LoretteQuebec, Canada 29 US AQI▲96
not rankedLafayetteCalifornia, United States 29 US AQI
=2097Veľká LomnicaPrešov Region, Slovakia 28 US AQI▼82
=2097KastoriaWest Macedonia, Greece 28 US AQI▼81
=2097KujiIwate, Japan 28 US AQI▲147
=2097OrangeNew South Wales, Australia 28 US AQI▲104
=2097AlburyNew South Wales, Australia 28 US AQI▲105
=2097LisbonLisbon, Portugal 28 US AQI▲211
=2097Jumillalast full day 11 OctMurcia, Spain 28 US AQI
=2097PayerneVaud, Switzerland 28 US AQI▼78
=2097EibergenGelderland, The Netherlands 28 US AQI▼424
=2097SalzburgSalzburg, Austria 28 US AQI▼340
=2097MolFlanders, Belgium 28 US AQI▼283
=2097GenkFlanders, Belgium 28 US AQI▼250
=2097LudwigsburgBaden-Wurttemberg, Germany 28 US AQI▼76
=2097LubnjowBrandenburg, Germany 28 US AQI▼151
=2097KehlBaden-Wurttemberg, Germany 28 US AQI▼150
=2097BremerhavenBremen, Germany 28 US AQI▼35
=2097StrasbourgGrand Est, France 28 US AQI▼109
=2097ForbachGrand Est, France 28 US AQI▲121
=2097DieppeNormandy, France 28 US AQI▼107
=2097CoulommiersÎle-de-France, France 28 US AQI▼183
=2097BrestBrittany, France 28 US AQI▼31
=2097ZaragozaAragon, Spain 28 US AQI
=2097Belle GladeFlorida, United States 28 US AQI▲163
=2097Deerfield BeachFlorida, United States 28 US AQI▲165
=2097GainesvilleFlorida, United States 28 US AQI▲303
=2097TampaFlorida, United States 28 US AQI▲238
=2097TopekaKansas, United States 28 US AQI▲271
=2097HarrisonburgVirginia, United States 28 US AQI▲275
=2097RichmondVirginia, United States 28 US AQI▲241
=2097West FargoNorth Dakota, United States 28 US AQI▼269
=2097Natrona HeightsPennsylvania, United States 28 US AQI▲312
=2097New BrightonPennsylvania, United States 28 US AQI▲313
=2097FillmoreCalifornia, United States 28 US AQI▲55
=2097TemeculaCalifornia, United States 28 US AQI▲61
=2097LongmontColorado, United States 28 US AQI▲23
=2097WindsorColorado, United States 28 US AQI▲62
=2097Grants PassOregon, United States 28 US AQI▼53
=2097Salt Lake CityUtah, United States 28 US AQI▼231
=2097WaterdownOntario, Canada 28 US AQI▲419
=2097Helena Valley West CentralMontana, United States 28 US AQI▼9
=2097La Crescenta-MontroseCalifornia, United States 28 US AQI▼8
not rankedPulong Santa CruzCalabarzon, Philippines 28 US AQI
not rankedCarpentersvilleIllinois, United States 28 US AQI
not rankedMaldenMassachusetts, United States 28 US AQI
not rankedNorth BergenNew Jersey, United States 28 US AQI
not rankedMurrysvillePennsylvania, United States 28 US AQI
=2138SalisburySouth Australia, Australia 28 US AQI▲27
=2138ZürichZurich, Switzerland 28 US AQI▲65
=2138NijverdalOverijssel, The Netherlands 28 US AQI▼466
=2138HalleinSalzburg, Austria 28 US AQI▼292
=2138ZaventemFlanders, Belgium 28 US AQI▼232
=2138WetzlarHesse, Germany 28 US AQI▼6
=2138OytenLower Saxony, Germany 28 US AQI▼378
=2138Munichlast full day 11 OctBavaria, Germany 28 US AQI▼262
=2138LampertheimHesse, Germany 28 US AQI▼41
=2138GießenHesse, Germany 28 US AQI▼2
=2138AalenBaden-Wurttemberg, Germany 28 US AQI▼189
=2138Montceau-les-MinesBourgogne-Franche-Comté, France 28 US AQI▲2
=2138MontargisCentre-Val de Loire, France 28 US AQI▼255
=2138LyonAuvergne-Rhône-Alpes, France 28 US AQI▼113
=2138LunévilleGrand Est, France 28 US AQI▼74
=2138HaguenauGrand Est, France 28 US AQI▲190
=2138BeauvaisHauts-de-France, France 28 US AQI▼71
=2138NewarkDelaware, United States 28 US AQI▲229
=2138Palm CityFlorida, United States 28 US AQI▲157
=2138WellingtonFlorida, United States 28 US AQI▲125
=2138HarrimanTennessee, United States 28 US AQI▲233
=2138BrownsvilleTexas, United States 28 US AQI
=2138Warrensville HeightsOhio, United States 28 US AQI▲398
=2138TucsonArizona, United States 28 US AQI▲15
=2138BurienWashington, United States 28 US AQI▼244
=2138Union GapWashington, United States 28 US AQI▼166
=2138ChathamOntario, Canada 28 US AQI▲410
=2138DuncanBritish Columbia, Canada 28 US AQI▲100
=2138Port CoquitlamBritish Columbia, Canada 28 US AQI▲103

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).