SmogRank / Thailand

Air quality in Chai Badan, estimated

Lopburi, Thailand. No ground monitor we can use is in this city, so these numbers are model estimates, not measurements.

≈7µg/m³
Good, estimated

Estimated PM2.5, 7-day average to 2026-09-30, about 0.4× the WHO 24-hour guideline. 30-day average ≈ 8 µg/m³.

Model estimate from the Copernicus Atmosphere Monitoring Service (CAMS). No measured city is within 300 km, too few to adjust it, so this is the raw model value, which can be off by half or double. Not ranked on SmogRank's boards.

Last 30 days, estimated

152026-09-01: ≈ 7 µg/m³ (estimate)09-012026-09-02: ≈ 7 µg/m³ (estimate)2026-09-03: ≈ 8 µg/m³ (estimate)2026-09-04: ≈ 8 µg/m³ (estimate)2026-09-05: ≈ 11 µg/m³ (estimate)2026-09-06: ≈ 6 µg/m³ (estimate)2026-09-07: ≈ 7 µg/m³ (estimate)2026-09-08: ≈ 7 µg/m³ (estimate)09-082026-09-09: ≈ 7 µg/m³ (estimate)2026-09-10: ≈ 7 µg/m³ (estimate)2026-09-11: ≈ 5 µg/m³ (estimate)2026-09-12: ≈ 13 µg/m³ (estimate)2026-09-13: ≈ 10 µg/m³ (estimate)2026-09-14: ≈ 11 µg/m³ (estimate)2026-09-15: ≈ 15 µg/m³ (estimate)09-152026-09-16: ≈ 10 µg/m³ (estimate)2026-09-17: ≈ 11 µg/m³ (estimate)2026-09-18: ≈ 3 µg/m³ (estimate)2026-09-19: ≈ 7 µg/m³ (estimate)2026-09-20: ≈ 3 µg/m³ (estimate)2026-09-21: ≈ 4 µg/m³ (estimate)2026-09-22: ≈ 16 µg/m³ (estimate)09-222026-09-23: ≈ 6 µg/m³ (estimate)2026-09-24: ≈ 3 µg/m³ (estimate)2026-09-25: ≈ 2 µg/m³ (estimate)2026-09-26: ≈ 1 µg/m³ (estimate)2026-09-27: ≈ 1 µg/m³ (estimate)2026-09-28: ≈ 3 µg/m³ (estimate)2026-09-29: ≈ 14 µg/m³ (estimate)09-292026-09-30: ≈ 22 µg/m³ (estimate)
Daily means, UTC days. Dashed line: WHO 24-hour guideline (15 µg/m³).

Measured cities nearby

CityDistance7-day average
Khlong Luang137 km8.0 µg/m³
Sai Mai152 km7.2 µg/m³
Ban Khlong Prawet172 km7.9 µg/m³
Bangkok175 km7.5 µg/m³
Bang Pakong185 km8.5 µg/m³
Uttaradit292 km4.3 µg/m³

Estimates contain modified Copernicus Atmosphere Monitoring Service information 2026. How estimates are made.