All 3,198 cities by PM2.5, this year

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.

=1653ChanuteKansas, United States 48 US AQI1.7 times the WHO guideline▼137
=1653TopekaKansas, United States 48 US AQI1.7 times the WHO guideline▼136
=1653AshlandKentucky, United States 48 US AQI1.7 times the WHO guideline▼135
=1653OwensboroKentucky, United States 48 US AQI1.7 times the WHO guideline▼134
=1653MorrisvilleNorth Carolina, United States 48 US AQI1.7 times the WHO guideline▼133
=1653SpringfieldOhio, United States 48 US AQI1.7 times the WHO guideline▼132
=1653Ponca CityOklahoma, United States 48 US AQI1.7 times the WHO guideline▼131
=1653South BendIndiana, United States 48 US AQI1.7 times the WHO guideline▼130
=1653Natrona HeightsPennsylvania, United States 48 US AQI1.7 times the WHO guideline▼129
=1653PittsburghPennsylvania, United States 48 US AQI1.7 times the WHO guideline▼128
=1653OceansideCalifornia, United States 48 US AQI1.7 times the WHO guideline▼126
=1653RichmondCalifornia, United States 48 US AQI1.7 times the WHO guideline▼125
=1653ShintomiMiyazaki, Japan 48 US AQI1.7 times the WHO guideline▼124
=1653JōsōIbaraki, Japan 48 US AQI1.7 times the WHO guideline▼123
=1653Higashi-MatsuyamaSaitama, Japan 48 US AQI1.7 times the WHO guideline▼122
=1653KinokawaWakayama, Japan 48 US AQI1.7 times the WHO guideline▼121
=1653BuzenFukuoka, Japan 48 US AQI1.7 times the WHO guideline▼120
=1653SugaiKyoto, Japan 48 US AQI1.7 times the WHO guideline▼119
=1653KuwanaMie, Japan 48 US AQI1.7 times the WHO guideline▼118
=1653MizuhoGifu, Japan 48 US AQI1.7 times the WHO guideline▼117
=1653GotōNagasaki, Japan 48 US AQI1.7 times the WHO guideline▼116
=1653LemwerderLower Saxony, Germany 48 US AQI1.7 times the WHO guideline▼175
=1723YaoOsaka, Japan 48 US AQI1.7 times the WHO guideline▼185
=1723Ueno-ebisumachiMie, Japan 48 US AQI1.7 times the WHO guideline▼184
=1723TsuruokaYamagata, Japan 48 US AQI1.7 times the WHO guideline▼183
=1723TsubataIshikawa, Japan 48 US AQI1.7 times the WHO guideline▼182
=1723TakatsukiOsaka, Japan 48 US AQI1.7 times the WHO guideline▼181
=1723TakarazukaHyōgo, Japan 48 US AQI1.7 times the WHO guideline▼180
=1723SanoTochigi, Japan 48 US AQI1.7 times the WHO guideline▼236
=1723MorohongōSaitama, Japan 48 US AQI1.7 times the WHO guideline▼179
=1723MieOita, Japan 48 US AQI1.7 times the WHO guideline▼178
=1723KusatsuShiga, Japan 48 US AQI1.7 times the WHO guideline▼177
=1723KoshigayaSaitama, Japan 48 US AQI1.7 times the WHO guideline▼135
=1723KanbaraShizuoka, Japan 48 US AQI1.7 times the WHO guideline▼175
=1723IzumiKagoshima, Japan 48 US AQI1.7 times the WHO guideline▼174
=1723GifuGifu, Japan 48 US AQI1.7 times the WHO guideline▼132
=1723GamagōriAichi, Japan 48 US AQI1.7 times the WHO guideline▼173
=1723ChiryūAichi, Japan 48 US AQI1.7 times the WHO guideline▼131
=1723IwanumaMiyagi, Japan 48 US AQI1.7 times the WHO guideline▼172
=1723SingletonNew South Wales, Australia 48 US AQI1.7 times the WHO guideline▼171
=1723ChristchurchCanterbury, New Zealand 48 US AQI1.7 times the WHO guideline▼170
=1723AlgecirasAndalusia, Spain 48 US AQI1.7 times the WHO guideline
=1723ScunthorpeEngland, United Kingdom 48 US AQI1.7 times the WHO guideline
=1723ZürichZurich, Switzerland 48 US AQI1.7 times the WHO guideline▼286
=1723WormerNorth Holland, The Netherlands 48 US AQI1.7 times the WHO guideline▼285
=1723GentFlanders, Belgium 48 US AQI1.7 times the WHO guideline▼281
=1723WetzlarHesse, Germany 48 US AQI1.7 times the WHO guideline▼279
=1723RitterhudeLower Saxony, Germany 48 US AQI1.7 times the WHO guideline▼216
=1723Niederzierlast full day 10 OctNorth Rhine-Westphalia, Germany 48 US AQI1.7 times the WHO guideline▼379
=1723Mönchengladbachlast full day 10 OctNorth Rhine-Westphalia, Germany 48 US AQI1.7 times the WHO guideline▼378
=1723Marburg an der LahnHesse, Germany 48 US AQI1.7 times the WHO guideline▼276
=1723Göttingenlast full day 10 OctLower Saxony, Germany 48 US AQI1.7 times the WHO guideline▼374
=1723LavalPays de la Loire, France 48 US AQI1.7 times the WHO guideline
=1723La GardeProvence-Alpes-Côte d'Azur, France 48 US AQI1.7 times the WHO guideline
=1723CoulommiersÎle-de-France, France 48 US AQI1.7 times the WHO guideline▼331
=1723Le LamentinMartinique, Martinique 48 US AQI1.7 times the WHO guideline
=1723WashingtonDistrict of Columbia, United States 48 US AQI1.7 times the WHO guideline▼163
=1723LawrencevilleGeorgia, United States 48 US AQI1.7 times the WHO guideline▼162
=1723SavannahGeorgia, United States 48 US AQI1.7 times the WHO guideline▼209
=1723MiddlesboroKentucky, United States 48 US AQI1.7 times the WHO guideline▼161
=1723Valley StationKentucky, United States 48 US AQI1.7 times the WHO guideline▼160
=1723St. LouisMissouri, United States 48 US AQI1.7 times the WHO guideline▼159
=1723CharlotteNorth Carolina, United States 48 US AQI1.7 times the WHO guideline▼158
=1723Winston-SalemNorth Carolina, United States 48 US AQI1.7 times the WHO guideline▼157
=1723GlenpoolOklahoma, United States 48 US AQI1.7 times the WHO guideline▼156
=1723Port ArthurTexas, United States 48 US AQI1.7 times the WHO guideline▼155
=1723Cleveland HeightsOhio, United States 48 US AQI1.7 times the WHO guideline▼154
=1723JolietIllinois, United States 48 US AQI1.7 times the WHO guideline▼153
=1723GaryIndiana, United States 48 US AQI1.7 times the WHO guideline▼152
=1723Michigan CityIndiana, United States 48 US AQI1.7 times the WHO guideline▼151
=1723Buffalolast full day 11 OctNew York, United States 48 US AQI1.7 times the WHO guideline▼150
=1723New BrightonPennsylvania, United States 48 US AQI1.7 times the WHO guideline▼149
=1723TomahWisconsin, United States 48 US AQI1.7 times the WHO guideline▼148
=1723Lake ElsinoreCalifornia, United States 48 US AQI1.7 times the WHO guideline▼197
=1723SpokaneWashington, United States 48 US AQI1.7 times the WHO guideline▼146
=1723KitchenerOntario, Canada 48 US AQI1.7 times the WHO guideline▼145
=1723KasugaFukuoka, Japan 48 US AQI1.7 times the WHO guideline▼144
=1723KirishimaKagoshima, Japan 48 US AQI1.7 times the WHO guideline▼143
=1723ShonaiYamagata, Japan 48 US AQI1.7 times the WHO guideline▼98
=1723MineYamaguchi, Japan 48 US AQI1.7 times the WHO guideline▼97
=1723JōyōKyoto, Japan 48 US AQI1.7 times the WHO guideline▼142
=1782SendaiKagoshima, Japan 47 US AQI1.7 times the WHO guideline▼199
=1782Sakai-nakajimaGunma, Japan 47 US AQI1.7 times the WHO guideline▼198
=1782NodaChiba, Japan 47 US AQI1.7 times the WHO guideline▼197
=1782NakamuraKochi, Japan 47 US AQI1.7 times the WHO guideline▼196
=1782MikuniFukui, Japan 47 US AQI1.7 times the WHO guideline▼195
=1782KawaguchiTokushima, Japan 47 US AQI1.7 times the WHO guideline▼193
=1782IzumiOsaka, Japan 47 US AQI1.7 times the WHO guideline▼192
=1782IwataShizuoka, Japan 47 US AQI1.7 times the WHO guideline▼146
=1782Chichibulast full day 24 SeptSaitama, Japan 47 US AQI1.7 times the WHO guideline▼142
=1782Natori-shiMiyagi, Japan 47 US AQI1.7 times the WHO guideline▼189
=1782IwakiFukushima, Japan 47 US AQI1.7 times the WHO guideline▼188
=1782HokotaIbaraki, Japan 47 US AQI1.7 times the WHO guideline▼187
=1782EnschedeOverijssel, The Netherlands 47 US AQI1.7 times the WHO guideline▼228
=1782HalleinSalzburg, Austria 47 US AQI1.7 times the WHO guideline▼186
=1782VeurneFlanders, Belgium 47 US AQI1.7 times the WHO guideline▼227
=1782MechelenFlanders, Belgium 47 US AQI1.7 times the WHO guideline▼184
=1782KapellenFlanders, Belgium 47 US AQI1.7 times the WHO guideline▼226
=1782Wuppertallast full day 10 OctNorth Rhine-Westphalia, Germany 47 US AQI1.7 times the WHO guideline▼399
=1782FuldaHesse, Germany 47 US AQI1.7 times the WHO guideline▼333

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), this year to 14 Oct 2026, 06:00 UTC: each city's mean of its daily means, cities measured on 70% or more of the days since 1 January (at least 14). Monitor data from national networks via OpenAQ and the publishers listed at smogrank.com/sources. smogrank.com/rankings?w=year. Ranked on low-cost sensors, with no reference monitor in the city: #2 Faisalabad, #3 Gujranwala and #6 Lahore. Some values from Sensor.Community, ODbL. Some readings from Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published.

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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 low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Department of Environment, Nepal; Vietnam's government monitors; Aurassure; RMCAB (Secretaría Distrital de Ambiente, Bogotá); Umhverfisstofnun (Environment Agency of Iceland), no reuse terms published (why we use them).