# Cities with the lowest annual PM2.5

Snapshot: approved-static-6fbe9b847dfeb5d6

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

- Canonical: /reports/cities-with-lowest-pm25/
- Last checked: 2026-07-15

## Answers

### Halifax, Canada

1.9 µg/m³
- Source: https://data-donnees.az.ec.gc.ca/api/file?path=%2Fair%2Fmonitor%2Fnational-air-pollution-surveillance-naps-program%2FData-Donnees%2F2024%2FContinuousData-DonneesContinu%2FAnnualSummaries-SommairesAnnuels%2F2024_AnnualPM25_EN.csv
- Checked: 2026-07-15

### Corner Brook, Canada

1.95 µg/m³
- Source: https://data-donnees.az.ec.gc.ca/api/file?path=%2Fair%2Fmonitor%2Fnational-air-pollution-surveillance-naps-program%2FData-Donnees%2F2024%2FContinuousData-DonneesContinu%2FAnnualSummaries-SommairesAnnuels%2F2024_AnnualPM25_EN.csv
- Checked: 2026-07-15

### Charlottetown, Canada

2.08 µg/m³
- Source: https://data-donnees.az.ec.gc.ca/api/file?path=%2Fair%2Fmonitor%2Fnational-air-pollution-surveillance-naps-program%2FData-Donnees%2F2024%2FContinuousData-DonneesContinu%2FAnnualSummaries-SommairesAnnuels%2F2024_AnnualPM25_EN.csv
- Checked: 2026-07-15

### Stratford, Canada

2.08 µg/m³
- Source: https://data-donnees.az.ec.gc.ca/api/file?path=%2Fair%2Fmonitor%2Fnational-air-pollution-surveillance-naps-program%2FData-Donnees%2F2024%2FContinuousData-DonneesContinu%2FAnnualSummaries-SommairesAnnuels%2F2024_AnnualPM25_EN.csv
- Checked: 2026-07-15

### Moncton, Canada

2.21 µg/m³
- Source: https://data-donnees.az.ec.gc.ca/api/file?path=%2Fair%2Fmonitor%2Fnational-air-pollution-surveillance-naps-program%2FData-Donnees%2F2024%2FContinuousData-DonneesContinu%2FAnnualSummaries-SommairesAnnuels%2F2024_AnnualPM25_EN.csv
- Checked: 2026-07-15

### Alcoutim, Portugal

2.7697 µg/m³
- Source: https://aqportal.discomap.eea.europa.eu/download-data/
- Checked: 2026-07-15

### Santana, Portugal

2.8443 µg/m³
- Source: https://aqportal.discomap.eea.europa.eu/download-data/
- Checked: 2026-07-15

### Gällivare, Sweden

2.8452 µg/m³
- Source: https://natmodluft.smhi.se/api/receptorsByMunicipality?municipality_name=G%C3%A4llivare
- Checked: 2026-07-15

### Angra do Heroísmo, Portugal

2.892 µg/m³
- Source: https://aqportal.discomap.eea.europa.eu/download-data/
- Checked: 2026-07-15

### Faro, Portugal

2.9058 µg/m³
- Source: https://aqportal.discomap.eea.europa.eu/download-data/
- Checked: 2026-07-15

### Krokom, Sweden

2.9067 µg/m³
- Source: https://natmodluft.smhi.se/api/receptorsByMunicipality?municipality_name=Krokom
- Checked: 2026-07-15

### Åre, Sweden

2.9086 µg/m³
- Source: https://natmodluft.smhi.se/api/receptorsByMunicipality?municipality_name=%C3%85re
- Checked: 2026-07-15

### Lycksele, Sweden

2.918 µg/m³
- Source: https://natmodluft.smhi.se/api/receptorsByMunicipality?municipality_name=Lycksele
- Checked: 2026-07-15

### Torsby, Sweden

3.0436 µg/m³
- Source: https://natmodluft.smhi.se/api/receptorsByMunicipality?municipality_name=Torsby
- Checked: 2026-07-15

### Horta, Portugal

3.4253 µg/m³
- Source: https://aqportal.discomap.eea.europa.eu/download-data/
- Checked: 2026-07-15

### Rovaniemi, Finland

3.5 µg/m³
- Source: https://www.syke.fi/en-US
- Checked: 2026-06-12T00:00:00Z

### Léglise, Belgium

3.5273 µg/m³
- Source: http://ftp.irceline.be/rio4x4/gemeente/fgem_pop_pm25_2008_2024.csv
- Checked: 2026-07-15

### Saint-Hubert, Belgium

3.5735 µg/m³
- Source: http://ftp.irceline.be/rio4x4/gemeente/fgem_pop_pm25_2008_2024.csv
- Checked: 2026-07-15

### Houffalize, Belgium

3.5809 µg/m³
- Source: http://ftp.irceline.be/rio4x4/gemeente/fgem_pop_pm25_2008_2024.csv
- Checked: 2026-07-15

### Vaux-sur-Sûre, Belgium

3.5902 µg/m³
- Source: http://ftp.irceline.be/rio4x4/gemeente/fgem_pop_pm25_2008_2024.csv
- Checked: 2026-07-15

### Bouillon, Belgium

3.6213 µg/m³
- Source: http://ftp.irceline.be/rio4x4/gemeente/fgem_pop_pm25_2008_2024.csv
- Checked: 2026-07-15

### Brioude, France

3.629 µg/m³
- Source: https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AirQualityDownloadServiceEUMonitoringStations/MapServer
- Checked: 2026-07-15

### Saint-Flour, France

3.629 µg/m³
- Source: https://air.discomap.eea.europa.eu/arcgis/rest/services/AirQuality/AirQualityDownloadServiceEUMonitoringStations/MapServer
- Checked: 2026-07-15

### Trondheim, Norway

3.8466 µg/m³
- Source: https://api-luftmalinger.miljodirektoratet.no/public/agg/4/2025-01-01/2025-12-31/Fylkets%20hus?components=NO2%3BPM10%3BPM2.5
- Checked: 2026-07-15

### Amble, United Kingdom

3.9947 µg/m³
- Source: https://uk-air.defra.gov.uk/data/laqm-background-maps.php?view=data&action=data&bkgrd-region=Northern_England&bkgrd-pollutant=pm25&bkgrd-year=2025&year=2021
- Checked: 2026-07-15

### Alto Reno Terme, Italy

4 µg/m³
- Source: https://dati.arpae.it/dataset/qualita-dell-aria-valutazioni-annuali-delle-concentrazioni-di-fondo
- Checked: 2026-07-15

### Joensuu, Finland

4 µg/m³
- Source: https://www.syke.fi/en-US
- Checked: 2026-06-12T00:00:00Z

### Seinäjoki, Finland

4 µg/m³
- Source: https://www.syke.fi/en-US
- Checked: 2026-06-12T00:00:00Z

### Berwick-upon-Tweed, United Kingdom

4.0235 µg/m³
- Source: https://uk-air.defra.gov.uk/data/laqm-background-maps.php?view=data&action=data&bkgrd-region=Northern_England&bkgrd-pollutant=pm25&bkgrd-year=2025&year=2021
- Checked: 2026-07-15

### Cockermouth, United Kingdom

4.0349 µg/m³
- Source: https://uk-air.defra.gov.uk/data/laqm-background-maps.php?view=data&action=data&bkgrd-region=Northern_England&bkgrd-pollutant=pm25&bkgrd-year=2025&year=2021
- Checked: 2026-07-15

## Method

Use compatible published metric fields (air_quality_pm25_annual_ug_m3, pm25_annual_ug_m3, pm25_annual_mean), keep numeric verified rows with direct source URLs, and sort ascending.

## Boundary

This ranking is a source-backed reference. Read the source, geographic grain and observation date before comparing rows.