Air Quality
2.9/5
21.0 µg/m³Sensitive Groups
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: ●●●
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.
WŏnsanNorth 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: ●●●
Who thrives in Wŏnsan
Poor fit
Things to consider in Wŏnsan
PM2.5 annual average of 21.0 µg/m³ exceeds the WHO interim target of 15 µg/m³. The WHO guideline value is 5 µg/m³.
Data sources: WHO (air quality), OECD (safety).
Why not Wŏnsan?
Why not Wŏnsan? Honestly, air quality could be better — Wŏnsan's 21.0 µg/m³ annual PM2.5 is above WHO guidelines, though still within ranges common for larger cities.
Frequently asked about Wŏnsan
▶How many sunny days does Wŏnsan have per year?
Wŏnsan averages approximately 211 sunny days per year, based on historical climate data.
▶What is the air quality in Wŏnsan?
Wŏnsan has an annual PM2.5 concentration of 21.0 µg/m³, classified as "Moderate" by WHO standards. Above WHO targets. Some respiratory effects possible with prolonged exposure.