All 2,895 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 in Spain: no readings since 13 Oct (310 monitors). Their cities show older figures or are missing from this board, not clean.

Show 303 cities with only 1–2 sensors

=2581Fort-de-FranceMartinique, Martinique 20 US AQI▲77
=2581PaulsboroNew Jersey, United States 20 US AQI▲178
=2581New LondonConnecticut, United States 20 US AQI▲208
=2581Fall RiverMassachusetts, United States 20 US AQI▲210
=2581Rochesterlast full day 11 OctNew York, United States 20 US AQI▲159
=2581MaranaArizona, United States 20 US AQI▼22
=2581CrestlineCalifornia, United States 20 US AQI▲14
=2581LompocCalifornia, United States 20 US AQI▲106
=2581EnterpriseNevada, United States 20 US AQI▲88
=2581North BendWashington, United States 20 US AQI▲18
=2581KīheiHawaii, United States 20 US AQI▲141
=2581BécancourQuebec, Canada 20 US AQI▲93
=2581BellevilleOntario, Canada 20 US AQI▲216
=2581SaskatoonSaskatchewan, Canada 20 US AQI▲145
=2581St. AlbertAlberta, Canada 20 US AQI▲146
=2581Rivière-des-Prairies–Pointe-aux-TremblesQuebec, Canada 20 US AQI▲96
=2617Saint-DenisReunion, Reunion 19 US AQI▲112
=2617LavertonVictoria, Australia 19 US AQI
=2617YorkEngland, United Kingdom 19 US AQI▲61
=2617SunderlandEngland, United Kingdom 19 US AQI▲8
=2617NorwichEngland, United Kingdom 19 US AQI▲62
=2617NewportWales, United Kingdom 19 US AQI▲169
=2617MansfieldEngland, United Kingdom 19 US AQI▼13
=2617LutonEngland, United Kingdom 19 US AQI▲9
=2617ImminghamEngland, United Kingdom 19 US AQI▲10
=2617HayesEngland, United Kingdom 19 US AQI▼41
=2617HartlepoolEngland, United Kingdom 19 US AQI▼12
=2617EdinburghScotland, United Kingdom 19 US AQI▼40
=2617ChesterfieldEngland, United Kingdom 19 US AQI▼74
=2617Burton upon TrentEngland, United Kingdom 19 US AQI▼39
=2617TallaghtLeinster, Ireland 19 US AQI▲64
=2617SwordsLeinster, Ireland 19 US AQI▲119
=2617NeversBourgogne-Franche-Comté, France 19 US AQI▼30
=2617La Ferté-MacéNormandy, France 19 US AQI▼67
=2617BourgesCentre-Val de Loire, France 19 US AQI▼127
=2617BastiaCorsica, France 19 US AQI▼64
=2617BarBar, Montenegro 19 US AQI▼125
=2617GreenfieldMassachusetts, United States 19 US AQI▲143
=2617LynnMassachusetts, United States 19 US AQI▲206
=2617North AdamsMassachusetts, United States 19 US AQI▲159
=2617QuincyMassachusetts, United States 19 US AQI▲207
=2617UxbridgeMassachusetts, United States 19 US AQI▲208
=2617WorcesterMassachusetts, United States 19 US AQI▲175
=2617TaosNew Mexico, United States 19 US AQI▲50
=2617Carson CityNevada, United States 19 US AQI▲51
=2617HendersonNevada, United States 19 US AQI▲25
=2617Spring ValleyNevada, United States 19 US AQI▲26
=2617McMinnvilleOregon, United States 19 US AQI▲128
=2617VernalUtah, United States 19 US AQI▲53
=2617Spokane ValleyWashington, United States 19 US AQI▼50
=2617EdsonAlberta, Canada 19 US AQI▲74
=2617MontréalQuebec, Canada 19 US AQI▲76
=2617Saint John EastNew Brunswick, Canada 19 US AQI▲108
=2617Oxon Hill-GlassmanorMaryland, United States 19 US AQI▲77
=2655Saint-PaulReunion, Reunion 19 US AQI▼9
=2655CacémLisbon, Portugal 19 US AQI▲113
=2655Southend-on-SeaEngland, United Kingdom 19 US AQI▼8
=2655PeterboroughEngland, United Kingdom 19 US AQI▼7
=2655GreenockScotland, United Kingdom 19 US AQI▼49
=2655FarnboroughEngland, United Kingdom 19 US AQI▲77
=2655BirminghamEngland, United Kingdom 19 US AQI▼239
=2655AylesburyEngland, United Kingdom 19 US AQI▲45
=2655ZierenbergHesse, Germany 19 US AQI▼74
=2655GärtringenBaden-Wurttemberg, Germany 19 US AQI▼26
=2655FürthHesse, Germany 19 US AQI▼2
=2655Baden-BadenBaden-Wurttemberg, Germany 19 US AQI▼110
=2655BloisCentre-Val de Loire, France 19 US AQI▼204
=2655Cangas del Narcealast full day 11 OctAsturias, Spain 19 US AQI
=2655LowellMassachusetts, United States 19 US AQI▲120
=2655PortlandMaine, United States 19 US AQI▲55
=2655AlamosaColorado, United States 19 US AQI▼59
=2655Gardnerville RanchosNevada, United States 19 US AQI▲89
=2655BoulderColorado, United States 19 US AQI▲59
=2655AberdeenWashington, United States 19 US AQI▲63
=2655EphrataWashington, United States 19 US AQI▼10
=2655FinleyWashington, United States 19 US AQI▼57
=2655QuincyWashington, United States 19 US AQI▲34
=2655SpokaneWashington, United States 19 US AQI▲17
=2655Rock SpringsWyoming, United States 19 US AQI▲65
=2655Greater SudburyOntario, Canada 19 US AQI▲37
=2655OttawaOntario, Canada 19 US AQI▲69
=2655PeterboroughOntario, Canada 19 US AQI▲189
=2655KostelMunicipality of Kostel, Slovenia 19 US AQI▼310
=2655AintreeVictoria, Australia 19 US AQI
=2685SantanaMadeira, Portugal 18 US AQI▼62
=2685Royal Leamington SpaEngland, United Kingdom 18 US AQI▲46
=2685RodezOccitanie, France 18 US AQI▼170
=2685FontainebleauÎle-de-France, France 18 US AQI▼72
=2685ÉtampesÎle-de-France, France 18 US AQI▼169
=2685CastresOccitanie, France 18 US AQI▼133
=2685MarigotSaint Martin 18 US AQI▲89
=2685CambridgeMaryland, United States 18 US AQI▲71
=2685AugustaMaine, United States 18 US AQI▲24
=2685Green ValleyArizona, United States 18 US AQI▼19
=2685FairwoodWashington, United States 18 US AQI▼14
=2685WenatcheeWashington, United States 18 US AQI▲80
=2685CasperWyoming, United States 18 US AQI▲5
=2685CodyWyoming, United States 18 US AQI▼12
=2685CornwallOntario, Canada 18 US AQI▲81
=2685Prince AlbertSaskatchewan, Canada 18 US AQI▲62

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors About these marks

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, 07:00 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 07:07 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).