Air Quality
2.4/5
25.5 µg/m³Unhealthy
Air Quality Profile
Hwaseong-si reports an annual PM2.5 of 25.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Hwaseong-si
South Korea
South KoreaAnnual Average
PoorWHO annual classification
25.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3030 µg/m³ — Poor
3131 µg/m³ — Poor
2828 µg/m³ — Poor
3030 µg/m³ — Poor
2626 µg/m³ — Poor
2727 µg/m³ — Poor
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
1919 µg/m³ — Moderate
2222 µg/m³ — Moderate
2525 µg/m³ — Poor
2525 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
3030 µg/m³ — Poor
3131 µg/m³ — Poor
2828 µg/m³ — Poor
3030 µg/m³ — Poor
2626 µg/m³ — Poor
2727 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
1919 µg/m³ — Moderate
2222 µg/m³ — Moderate
2525 µg/m³ — Poor
2525 µg/m³ — Moderate
Best months: Aug–OctWorst months: Jan–Feb, Apr
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Air Quality Profile
Hwaseong-si reports an annual PM2.5 of 25.5 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Hwaseong-siSouth Korea
South KoreaAnnual Average
PoorWHO annual classification
25.5µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3030 µg/m³ — Poor
3131 µg/m³ — Poor
2828 µg/m³ — Poor
3030 µg/m³ — Poor
2626 µg/m³ — Poor
2727 µg/m³ — Poor
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
1919 µg/m³ — Moderate
2222 µg/m³ — Moderate
2525 µg/m³ — Poor
2525 µg/m³ — Moderate
Jan
Feb
Mar
Apr
May
Jun
3030 µg/m³ — Poor
3131 µg/m³ — Poor
2828 µg/m³ — Poor
3030 µg/m³ — Poor
2626 µg/m³ — Poor
2727 µg/m³ — Poor
Jul
Aug
Sep
Oct
Nov
Dec
2222 µg/m³ — Moderate
2222 µg/m³ — Moderate
1919 µg/m³ — Moderate
2222 µg/m³ — Moderate
2525 µg/m³ — Poor
2525 µg/m³ — Moderate
Best months: Aug–OctWorst months: Jan–Feb, Apr
Moderate15–25 µg/m³Poor25–35 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Who thrives in Hwaseong-si
Things to consider in Hwaseong-si
PM2.5 annual average of 25.5 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 Hwaseong-si?
Why not Hwaseong-si? Honestly, air quality is a meaningful downside — at 25.5 µg/m³ annual PM2.5, Hwaseong-si sits above the EU limit, which may matter for allergy sufferers or long-term residents.
Frequently asked about Hwaseong-si
▶How many sunny days does Hwaseong-si have per year?
Hwaseong-si averages approximately 197 sunny days per year, based on historical climate data.
▶What is the air quality in Hwaseong-si?
Hwaseong-si has an annual PM2.5 concentration of 25.5 µg/m³, classified as "Poor" by WHO standards. Significantly above WHO targets. Increased health risk, especially outdoors.