Air Quality
2.0/5
30.3 µg/m³Unhealthy
Air Quality Profile
Nong Khai reports an annual PM2.5 of 30.3 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Nong Khai
Thailand
ThailandAnnual Average
PoorWHO annual classification
30.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3838 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
4444 µg/m³ — Unhealthy
4646 µg/m³ — Unhealthy
3131 µg/m³ — Poor
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1717 µg/m³ — Moderate
2222 µg/m³ — Moderate
2323 µg/m³ — Moderate
3434 µg/m³ — Poor
3535 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
3838 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
4444 µg/m³ — Unhealthy
4646 µg/m³ — Unhealthy
3131 µg/m³ — Poor
1818 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1818 µg/m³ — Moderate
1717 µg/m³ — Moderate
2222 µg/m³ — Moderate
2323 µg/m³ — Moderate
3434 µg/m³ — Poor
3535 µg/m³ — Poor
Best months: Jun–AugWorst months: Jan, Mar–Apr
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Air Quality Profile
Nong Khai reports an annual PM2.5 of 30.3 µg/m³. That's above the EU annual limit of 25 µg/m³ — long-term exposure here carries documented health trade-offs.
Nong KhaiThailand
ThailandAnnual Average
PoorWHO annual classification
30.3µg/m³
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
PM2.5
3838 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
4444 µg/m³ — Unhealthy
4646 µg/m³ — Unhealthy
3131 µg/m³ — Poor
1818 µg/m³ — Moderate
1818 µg/m³ — Moderate
1717 µg/m³ — Moderate
2222 µg/m³ — Moderate
2323 µg/m³ — Moderate
3434 µg/m³ — Poor
3535 µg/m³ — Poor
Jan
Feb
Mar
Apr
May
Jun
3838 µg/m³ — Unhealthy
3737 µg/m³ — Unhealthy
4444 µg/m³ — Unhealthy
4646 µg/m³ — Unhealthy
3131 µg/m³ — Poor
1818 µg/m³ — Moderate
Jul
Aug
Sep
Oct
Nov
Dec
1818 µg/m³ — Moderate
1717 µg/m³ — Moderate
2222 µg/m³ — Moderate
2323 µg/m³ — Moderate
3434 µg/m³ — Poor
3535 µg/m³ — Poor
Best months: Jun–AugWorst months: Jan, Mar–Apr
Moderate15–25 µg/m³Poor25–35 µg/m³Unhealthy35–50 µg/m³
Based on WUSTL PM2.5 dataset (2020–2024) · WHO 2021 thresholds
Confidence: ●●●
Who thrives in Nong Khai
Things to consider in Nong Khai
PM2.5 annual average of 30.3 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 Nong Khai?
Why not Nong Khai? Honestly, air quality is a meaningful downside — at 30.3 µg/m³ annual PM2.5, Nong Khai sits above the EU limit, which may matter for allergy sufferers or long-term residents.
Frequently asked about Nong Khai
▶How many sunny days does Nong Khai have per year?
Nong Khai averages approximately 249 sunny days per year, based on historical climate data.
▶What is the air quality in Nong Khai?
Nong Khai has an annual PM2.5 concentration of 30.3 µg/m³, classified as "Poor" by WHO standards. Significantly above WHO targets. Increased health risk, especially outdoors.