SmogRank / World / Asia / Thailand / Loei

Most polluted cities in Loei, Thailand

No city in Loei, Thailand has enough readings to rank for the last 24 hours.

A city joins the 24-hour ranking with 18 hours of readings in the last 24; none here has that right now, so there is nothing to map or chart.

This year: 1 measured city

Good0–9.0
Moderate9.1–35.4
Sensitive groups35.5–55.4
Unhealthy55.5–125.4
Very unhealthy125.5–225.4
Hazardous225.5+

PM2.5 in µg/m³, coloured by the US EPA's PM2.5 categories. Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Estimated: cities without a monitor

Loei cities we can't measure, with model estimates for the last 7 days. Listed by population, not ranked: estimates aren't precise enough to rank. Model estimates from the Copernicus Atmosphere Monitoring Service (CAMS), adjusted to measured cities nearby where there are any. Adjusted, a single day lands within ×1.5 of what a monitor would read about two times in three; unadjusted, it can be off by half or double. Treat them as a guide, not a measurement.

City7-day estimateBand
Phu Kradueng≈ 4 µg/m³Good
Wang Saphung≈ 4 µg/m³Good
Erawan≈ 5 µg/m³Good

Updated 2026-10-02 06:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors in µg/m³.