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.

=1491FukuchiyamaKyoto, Japan 50 US AQI1.8 times the WHO guideline▼193
=1491NagatoYamaguchi, Japan 50 US AQI1.8 times the WHO guideline▼154
=1491ZaanstadNorth Holland, The Netherlands 50 US AQI1.8 times the WHO guideline▼269
=1491UtrechtUtrecht, The Netherlands 50 US AQI1.8 times the WHO guideline▼112
=1491MaassluisSouth Holland, The Netherlands 50 US AQI1.8 times the WHO guideline▼268
=1491SalzburgSalzburg, Austria 50 US AQI1.8 times the WHO guideline▼111
=1491MelseleFlanders, Belgium 50 US AQI1.8 times the WHO guideline▼190
=1491Knokke-HeistFlanders, Belgium 50 US AQI1.8 times the WHO guideline▼189
=1491Warsteinlast full day 10 OctNorth Rhine-Westphalia, Germany 50 US AQI1.8 times the WHO guideline▼307
=1491Trierlast full day 10 OctRheinland-Pfalz, Germany 50 US AQI1.8 times the WHO guideline▼186
=1491PforzheimBaden-Wurttemberg, Germany 50 US AQI1.8 times the WHO guideline▼185
=1491Limburg an der LahnHesse, Germany 50 US AQI1.8 times the WHO guideline▼220
=1491Kleinmachnowlast full day 10 OctBrandenburg, Germany 50 US AQI1.8 times the WHO guideline▼260
=1491Düsseldorflast full day 10 OctNorth Rhine-Westphalia, Germany 50 US AQI1.8 times the WHO guideline▼305
=1491Fontaine-lès-DijonBourgogne-Franche-Comté, France 50 US AQI1.8 times the WHO guideline
=1491DouaiHauts-de-France, France 50 US AQI1.8 times the WHO guideline▼38
=1491AnnecyAuvergne-Rhône-Alpes, France 50 US AQI1.8 times the WHO guideline
=1491BeasainBasque Country, Spain 50 US AQI1.8 times the WHO guideline
=1491GuaratinguetáSão Paulo, Brazil 50 US AQI1.8 times the WHO guideline▼139
=1491BirminghamAlabama, United States 50 US AQI1.8 times the WHO guideline▼138
=1491AtlantaGeorgia, United States 50 US AQI1.8 times the WHO guideline▼91
=1491Upper AltonIllinois, United States 50 US AQI1.8 times the WHO guideline▼137
=1491Wood RiverIllinois, United States 50 US AQI1.8 times the WHO guideline▼177
=1491HaysvilleKansas, United States 50 US AQI1.8 times the WHO guideline▼136
=1491LouisvilleKentucky, United States 50 US AQI1.8 times the WHO guideline▼135
=1491HudsonvilleMichigan, United States 50 US AQI1.8 times the WHO guideline▼134
=1491MarquetteMichigan, United States 50 US AQI1.8 times the WHO guideline▼170
=1491HersheyPennsylvania, United States 50 US AQI1.8 times the WHO guideline▼133
=1491SchlusserPennsylvania, United States 50 US AQI1.8 times the WHO guideline▼132
=1491Chula VistaCalifornia, United States 50 US AQI1.8 times the WHO guideline▼131
=1491NepeanOntario, Canada 50 US AQI1.8 times the WHO guideline▼167
=1491Red DeerAlberta, Canada 50 US AQI1.8 times the WHO guideline▼166
=1491NiizaSaitama, Japan 50 US AQI1.8 times the WHO guideline▼130
=1491InabeMie, Japan 50 US AQI1.8 times the WHO guideline▼129
=1491WakasugiFukuoka, Japan 50 US AQI1.8 times the WHO guideline▼128
=1491MimaTokushima, Japan 50 US AQI1.8 times the WHO guideline▼127
=1537HaskovoHaskovo, Bulgaria 49 US AQI1.8 times the WHO guideline▼172
=1537YoukaichiShiga, Japan 49 US AQI1.8 times the WHO guideline▼171
=1537SakadoSaitama, Japan 49 US AQI1.8 times the WHO guideline▼170
=1537NagoyaAichi, Japan 49 US AQI1.8 times the WHO guideline▼169
=1537KukichūōSaitama, Japan 49 US AQI1.8 times the WHO guideline▼112
=1537KofuYamanashi, Japan 49 US AQI1.8 times the WHO guideline▼168
=1537KochiKochi, Japan 49 US AQI1.8 times the WHO guideline▼167
=1537IzumisanoOsaka, Japan 49 US AQI1.8 times the WHO guideline▼166
=1537IgusaSaitama, Japan 49 US AQI1.8 times the WHO guideline▼165
=1537HimejiHyōgo, Japan 49 US AQI1.8 times the WHO guideline▼164
=1537HijiOita, Japan 49 US AQI1.8 times the WHO guideline▼163
=1537AyabeKyoto, Japan 49 US AQI1.8 times the WHO guideline▼162
=1537AgeoSaitama, Japan 49 US AQI1.8 times the WHO guideline▼161
=1537ShiroishiMiyagi, Japan 49 US AQI1.8 times the WHO guideline▼160
=1537SagaeYamagata, Japan 49 US AQI1.8 times the WHO guideline▼102
=1537SwanseaWales, United Kingdom 49 US AQI1.8 times the WHO guideline
=1537LeedsEngland, United Kingdom 49 US AQI1.8 times the WHO guideline
=1537BournemouthEngland, United Kingdom 49 US AQI1.8 times the WHO guideline
=1537NoordwijkerhoutSouth Holland, The Netherlands 49 US AQI1.8 times the WHO guideline▼198
=1537GroningenGroningen, The Netherlands 49 US AQI1.8 times the WHO guideline▼272
=1537WittenbergeBrandenburg, Germany 49 US AQI1.8 times the WHO guideline▼234
=1537Weidenlast full day 10 OctBavaria, Germany 49 US AQI1.8 times the WHO guideline▼195
=1537Schwertelast full day 10 OctNorth Rhine-Westphalia, Germany 49 US AQI1.8 times the WHO guideline▼308
=1537Schwandorf in Bayernlast full day 10 OctBavaria, Germany 49 US AQI1.8 times the WHO guideline▼194
=1537Lüchowlast full day 10 OctLower Saxony, Germany 49 US AQI1.8 times the WHO guideline▼307
=1537JülichNorth Rhine-Westphalia, Germany 49 US AQI1.8 times the WHO guideline▼189
=1537HeidelbergBaden-Wurttemberg, Germany 49 US AQI1.8 times the WHO guideline▼228
=1537Eisenachlast full day 10 OctThuringia, Germany 49 US AQI1.8 times the WHO guideline▼305
=1537Biberach an der RißBaden-Wurttemberg, Germany 49 US AQI1.8 times the WHO guideline▼148
=1537FilderstadtBaden-Wurttemberg, Germany 49 US AQI1.8 times the WHO guideline▼186
=1537Presidente PrudenteSão Paulo, Brazil 49 US AQI1.8 times the WHO guideline▼141
=1537Doverlast full day 4 OctDelaware, United States 49 US AQI1.8 times the WHO guideline▼140
=1537WilmingtonDelaware, United States 49 US AQI1.8 times the WHO guideline▼139
=1537Kendale LakesFlorida, United States 49 US AQI1.8 times the WHO guideline▼138
=1537BaltimoreMaryland, United States 49 US AQI1.8 times the WHO guideline▼136
=1537DaytonOhio, United States 49 US AQI1.8 times the WHO guideline▼135
=1537Saint AndrewsSouth Carolina, United States 49 US AQI1.8 times the WHO guideline▼134
=1537East ChicagoIndiana, United States 49 US AQI1.8 times the WHO guideline▼133
=1537TecumsehMichigan, United States 49 US AQI1.8 times the WHO guideline▼132
=1537WyomissingPennsylvania, United States 49 US AQI1.8 times the WHO guideline▼131
=1537AppletonWisconsin, United States 49 US AQI1.8 times the WHO guideline▼130
=1537Mission ViejoCalifornia, United States 49 US AQI1.8 times the WHO guideline▼129
=1537CranbrookBritish Columbia, Canada 49 US AQI1.8 times the WHO guideline▼127
=1537St. ThomasOntario, Canada 49 US AQI1.8 times the WHO guideline▼126
=1537Misato, SaitamaSaitama, Japan 49 US AQI1.8 times the WHO guideline▼62
=1537HashimaGifu, Japan 49 US AQI1.8 times the WHO guideline▼125
=1537MunakataFukuoka, Japan 49 US AQI1.8 times the WHO guideline▼123
=1537TatsunoHyōgo, Japan 49 US AQI1.8 times the WHO guideline▼122
=1585Cernicalast full day 10 OctIlfov, Romania 49 US AQI1.8 times the WHO guideline▼169
=1585KozániWest Macedonia, Greece 49 US AQI1.8 times the WHO guideline▼291
=1585ShingūWakayama, Japan 49 US AQI1.8 times the WHO guideline▼168
=1585ToyookaHyōgo, Japan 49 US AQI1.8 times the WHO guideline▼167
=1585TosuSaga, Japan 49 US AQI1.8 times the WHO guideline▼166
=1585TanabeWakayama, Japan 49 US AQI1.8 times the WHO guideline▼165
=1585SōkaSaitama, Japan 49 US AQI1.8 times the WHO guideline▼164
=1585SaikūMie, Japan 49 US AQI1.8 times the WHO guideline▼163
=1585ŌtaGunma, Japan 49 US AQI1.8 times the WHO guideline▼97
=1585NakatsuOita, Japan 49 US AQI1.8 times the WHO guideline▼162
=1585Nakamalast full day 11 OctFukuoka, Japan 49 US AQI1.8 times the WHO guideline▼161
=1585KobeHyōgo, Japan 49 US AQI1.8 times the WHO guideline▼159
=1585KiryūGunma, Japan 49 US AQI1.8 times the WHO guideline▼91
=1585KaratsuSaga, Japan 49 US AQI1.8 times the WHO guideline▼158
=1585KakamigaharaGifu, Japan 49 US AQI1.8 times the WHO guideline▼156
=1585HanyūSaitama, Japan 49 US AQI1.8 times the WHO guideline▼155

What stands behind each figure: Checked at 2+ sites One reference monitor Low-cost sensors 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), 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.

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 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).