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Cities with the lowest annual PM2.5

Published annual PM2.5 observations in µg/m³, ranked from lowest to highest without mixing current readings.

JSON Markdown

Los Alamos, United States is first in the current published ranking at 0.18 µg/m³; compare its source date and geographic grain before using the result.

Items compared
30
Countries represented
12
Last checked
2026-08-26

Source-backed answers

Compare each answer with its unit and checked date; the complete source ledger is below.

Showing all 30 rows

Original rankCity or placePublished valueSource and scope
1Los Alamos, United States0.18 µg/m³2026-08-06
Source Scope: nearest_station · Period: 2024-12-31
2White Rock, United States0.18 µg/m³2026-08-06
Source Scope: nearest_station · Period: 2024-12-31
3Etowah, United States0.23 µg/m³2026-08-06
Source Scope: nearest_station · Period: 2024-12-31
4Eastham, United States0.24 µg/m³2026-08-06
Source Scope: nearest_station · Period: 2024-12-31
5Joshua Tree, United States0.24 µg/m³2026-08-06
Source Scope: nearest_station · Period: 2024-12-31
6Porto Santo, Portugal1.78 µg/m³2026-08-26
Source Scope: city · Period: 2010-12-31
7Halifax, Canada1.9 µg/m³2026-07-15
Source Scope: city · Period: 2024
8Sibiu, Romania1.9 µg/m³2026-08-26
Source Scope: city · Period: 2022-12-31
9Campbell River, Canada1.92 µg/m³2026-07-15
Source Scope: city · Period: 2024
10Corner Brook, Canada1.95 µg/m³2026-07-15
Source Scope: city · Period: 2024
11Charlottetown, Canada2.08 µg/m³2026-07-15
Source Scope: city · Period: 2024
12Stratford, Canada2.08 µg/m³2026-07-15
Source Scope: city · Period: 2024
13Macedo de Cavaleiros, Portugal2.66 µg/m³2026-08-26
Source Scope: city · Period: 2020-12-31
14Davos, Switzerland2.7 µg/m³2026-08-04
Source Scope: city · Period: 2024-12-31
15Alcoutim, Portugal2.77 µg/m³2026-07-15
Source Scope: city · Period: 2024
16Santana, Portugal2.84 µg/m³2026-07-15
Source Scope: city · Period: 2024
17Gällivare, Sweden2.85 µg/m³2026-07-15
Source Scope: city · Period: 2023
18Angra do Heroísmo, Portugal2.89 µg/m³2026-07-15
Source Scope: city · Period: 2024
19Galmaarden, Belgium2.9 µg/m³2026-08-07
Source Scope: city · Period: 2024-12-31
20Krokom, Sweden2.91 µg/m³2026-07-15
Source Scope: city · Period: 2023
21Åre, Sweden2.91 µg/m³2026-07-15
Source Scope: city · Period: 2023
22Lycksele, Sweden2.92 µg/m³2026-07-15
Source Scope: city · Period: 2023
23Raahe, Finland2.98 µg/m³2026-08-26
Source Scope: city · Period: 2017-12-31
24Bad Krozingen, Germany3 µg/m³2026-08-01
Source Scope: nearest_station · Period: 2024-12-31
25Bastogne, Belgium3 µg/m³2026-08-01
Source Scope: nearest_station · Period: 2024-12-31
26Benidorm, Spain3 µg/m³2026-08-03
Source Scope: city · Period: 2024-12-31
27Birkenes, Norway3 µg/m³2026-08-01
Source Scope: nearest_station · Period: 2024-12-31
28Bodø, Norway3 µg/m³2026-08-01
Source Scope: nearest_station · Period: 2024-12-31
29Borriol, Spain3 µg/m³2026-08-06
Source Scope: nearest_station · Period: 2024-12-31
30Bosa, Italy3 µg/m³2026-08-03
Source Scope: city · Period: 2024-12-31

What the numbers say

  • Los Alamos, United States leads at 0.18 µg/m³.
  • Bosa, Italy sits at the other end with 3 µg/m³.
  • The middle of this ranking is 2.84 µg/m³, across 30 places that publish the metric.
  • The spread between first and last is 2.82 µg/m³.

What this measures

Every row is a published pm2.5 — annual mean observation, ranked lowest first. The values were observed between 2010 and 2024. A place appears only when it publishes this exact metric, so an absent place means missing data rather than a low value.

  • Compare the displayed value, unit, source date and geographic grain together.
  • A city label does not change a regional observation into a city measurement.
Rows
30 places
Geographic grain
2 grains: nearest_station, city
Observation period
2010-12-31 to 2024-12-31
Last checked
2026-08-26
With an official source link
30 of 30

Cite this page

Open a format to select or copy this ImmigrationDB compilation citation. The native disclosure and text fallback work without JavaScript.

APA citation
ImmigrationDB. (2026, September 12). Cities with the lowest annual PM2.5 [ImmigrationDB compilation; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0]. ImmigrationDB. https://immigrationdb.com/reports/cities-with-lowest-pm25/ Retrieved 2026-09-12. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/
BibTeX citation
@misc{immigrationdb_immigrationdb_cities-with-the-lowest-annual-pm2-5_d3f6baf8ea51,
  author = {ImmigrationDB},
  title = {Cities with the lowest annual PM2.5},
  publisher = {ImmigrationDB},
  year = {2026},
  date = {2026-09-12},
  version = {approved-static-d7ed373c115d60d0},
  snapshot = {approved-static-d7ed373c115d60d0},
  url = {https://immigrationdb.com/reports/cities-with-lowest-pm25/},
  note = {Retrieved 2026-09-12. ImmigrationDB compilation. Compilation license: CC BY 4.0, https://creativecommons.org/licenses/by/4.0/},
}
Markdown citation
[Cities with the lowest annual PM2.5](https://immigrationdb.com/reports/cities-with-lowest-pm25/) — ImmigrationDB; ImmigrationDB; snapshot approved-static-d7ed373c115d60d0; version approved-static-d7ed373c115d60d0; retrieved 2026-09-12; built 2026-09-12.

This citation identifies the ImmigrationDB compilation/page. Underlying source publishers and datasets retain their own terms; inspect the Sources section and cite those records separately. View the underlying source records.

Sources

  1. US EPA Air Quality System (AQS)US EPA Air Quality System (AQS) · Checked 2026-08-06
  2. cdn.who.intcdn.who.int · Checked 2026-08-26
  3. Official ECCC/NAPS 2024 annual daily-mean station observations, reproducibly aggregated as an arithmetic mean for eligible stations within 25 km of the target city coordinate. This is a derived place observation, not an asserted municipal monitor aggregate.Environment and Climate Change Canada (ECCC), National Air Pollution Surveillance (NAPS) Program · Checked 2026-07-15
  4. Swiss Federal Office for the Environment (FOEN/BAFU) and Empa NABELSwiss Federal Office for the Environment (FOEN/BAFU) and Empa NABEL · Checked 2026-08-04
  5. official validated air-quality station bulk; no exact target station-period input foundEuropean Environment Agency · Checked 2026-07-15
  6. Official SMHI 2023 national model values are derived from exact-kommun receptor/grid features.SMHI · Checked 2026-07-15
  7. IRCEL/CELINE (Belgian Interregional Environment Agency)IRCEL/CELINE (Belgian Interregional Environment Agency) · Checked 2026-08-07
  8. Official SMHI 2023 national model values are derived from exact-kommun receptor/grid features.SMHI · Checked 2026-07-15
  9. Official SMHI 2023 national model values are derived from exact-kommun receptor/grid features.SMHI · Checked 2026-07-15
  10. Official SMHI 2023 national model values are derived from exact-kommun receptor/grid features.SMHI · Checked 2026-07-15
  11. EEA air quality statistics — DE PM2.5 annual mean 2024 (station Schwarzwald-Süd)European Environment Agency (EEA) · Checked 2026-08-01
  12. EEA air quality statistics — BE PM2.5 annual mean 2024 (station 43N113 - SAINT-ODE)European Environment Agency (EEA) · Checked 2026-08-01