Air Quality Lab — Wŏnsan, North Korea
Air Quality Profile·
Wŏnsan reports an annual PM2.5 of 21.0 µg/m³. That's meaningfully above the WHO 2021 guideline of 5 µg/m³ yet within the EU annual limit of 25 µg/m³.
Wŏnsan
North Korea
North KoreaAnnual Average
ModerateWHO annual classification
21.0µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
2727 µg/m³ — Poor
3030 µg/m³ — Poor
2525 µg/m³ — Poor
2323 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
1919 µg/m³ — Moderate
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
1515 µg/m³ — Fair
2020 µg/m³ — Moderate
2424 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
2727 µg/m³ — Poor
3030 µg/m³ — Poor
2525 µg/m³ — Poor
2323 µg/m³ — Moderate
1919 µg/m³ — Moderate
2020 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1919 µg/m³ — Moderate
1616 µg/m³ — Moderate
1414 µg/m³ — Fair
1515 µg/m³ — Fair
2020 µg/m³ — Moderate
2424 µg/m³ — Moderate
Best months: Aug–OctWorst months: Jan–Mar
Fair10–15 µg/m³Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
How air quality compares
Compared across North Korea
Wŏnsan: 21.0 µg/m³. Typical range in North Korea: 18.3–23.2 µg/m³. Low anchor: Changam-ch’on, 16.0 µg/m³. High anchor: Man’gyŏngdae-ri, 30.1 µg/m³.
90 cities tracked