SmogRank / Thailand / Phetchabun

Air quality in Phetchabun

Phetchabun, Thailand. PM2.5 from 1 reference monitor, updated hourly.

52US AQI
Moderate

Latest hour (11:00 UTC), 0.6× the WHO 24-hour guideline. PM2.5 9.4 µg/m³. 24-hour average 8.7 µg/m³.

Rank among 1,516 cities

24 hours#519of 1,516, at 48 US AQI (8.7 µg/m³)
7 days#1,801of 2,585, at 34 US AQI (6.2 µg/m³) ▼26
30 days#967of 2,594, at 43 US AQI (7.8 µg/m³) ▲3
This year#323of 2,426, at 74 US AQI (21.6 µg/m³) ▲1

Why it ranks here

Seasonal. Over the past year its worst months were April, averaging up to 46.6 µg/m³ against 7.7 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

Based on Phetchabun's own measurements; causes are the usual kinds for a pattern like this, not a confirmed source.

Bad-air episodes that reached Phetchabun

Times when Phetchabun and many cities around it had PM2.5 at twice their usual or more on the same days. Latest 8 of 9. All episodes.

The last 12 months, day by day

1102031Nov 2025DecJan 2026FebMarAprMayJunJulAugSepOct2025-11-01: no data2025-11-02: no data2025-11-03: no data2025-11-04: no data2025-11-05: no data2025-11-06: no data2025-11-07: no data2025-11-08: no data2025-11-09: no data2025-11-10: no data2025-11-11: no data2025-11-12: no data2025-11-13: no data2025-11-14: no data2025-11-15: no data2025-11-16: no data2025-11-17: no data2025-11-18: no data2025-11-19: 18.8 µg/m³2025-11-20: 15.3 µg/m³2025-11-21: 16.5 µg/m³2025-11-22: 20.3 µg/m³2025-11-23: 20.2 µg/m³2025-11-24: 22.1 µg/m³2025-11-25: 25.1 µg/m³2025-11-26: 30.0 µg/m³2025-11-27: 32.2 µg/m³2025-11-28: 30.0 µg/m³2025-11-29: 37.4 µg/m³2025-11-30: 38.9 µg/m³2025-12-01: 35.9 µg/m³2025-12-02: 29.9 µg/m³2025-12-03: 28.0 µg/m³2025-12-04: 23.5 µg/m³2025-12-05: 23.7 µg/m³2025-12-06: 23.3 µg/m³2025-12-07: 19.9 µg/m³2025-12-08: 21.7 µg/m³2025-12-09: 28.6 µg/m³2025-12-10: 31.0 µg/m³2025-12-11: 27.9 µg/m³2025-12-12: 25.9 µg/m³2025-12-13: 21.1 µg/m³2025-12-14: 15.1 µg/m³2025-12-15: 14.8 µg/m³2025-12-16: 17.3 µg/m³2025-12-17: 18.0 µg/m³2025-12-18: 17.7 µg/m³2025-12-19: 19.6 µg/m³2025-12-20: 25.9 µg/m³2025-12-21: 25.2 µg/m³2025-12-22: 22.7 µg/m³2025-12-23: 19.5 µg/m³2025-12-24: 21.5 µg/m³2025-12-25: 22.9 µg/m³2025-12-26: 24.1 µg/m³2025-12-27: 18.1 µg/m³2025-12-28: 24.3 µg/m³2025-12-29: 27.0 µg/m³2025-12-30: 29.7 µg/m³2025-12-31: 28.9 µg/m³2026-01-01: 38.3 µg/m³2026-01-02: 27.1 µg/m³2026-01-03: 20.8 µg/m³2026-01-04: 16.5 µg/m³2026-01-05: 18.0 µg/m³2026-01-06: 20.2 µg/m³2026-01-07: 18.3 µg/m³2026-01-08: 19.2 µg/m³2026-01-09: 25.7 µg/m³2026-01-10: 30.0 µg/m³2026-01-11: 31.8 µg/m³2026-01-12: 26.7 µg/m³2026-01-13: 30.4 µg/m³2026-01-14: 39.6 µg/m³2026-01-15: 41.5 µg/m³2026-01-16: 41.9 µg/m³2026-01-17: 44.7 µg/m³2026-01-18: 32.5 µg/m³2026-01-19: 28.8 µg/m³2026-01-20: 31.5 µg/m³2026-01-21: 31.1 µg/m³2026-01-22: 33.3 µg/m³2026-01-23: 27.9 µg/m³2026-01-24: 24.1 µg/m³2026-01-25: 23.0 µg/m³2026-01-26: 28.8 µg/m³2026-01-27: 36.4 µg/m³2026-01-28: 36.4 µg/m³2026-01-29: 31.1 µg/m³2026-01-30: 32.3 µg/m³2026-01-31: 36.5 µg/m³2026-02-01: 38.8 µg/m³2026-02-02: 29.2 µg/m³2026-02-03: 21.5 µg/m³2026-02-04: 21.8 µg/m³2026-02-05: 25.3 µg/m³2026-02-06: 28.4 µg/m³2026-02-07: 30.6 µg/m³2026-02-08: 35.9 µg/m³2026-02-09: 25.6 µg/m³2026-02-10: 25.2 µg/m³2026-02-11: 27.5 µg/m³2026-02-12: 30.7 µg/m³2026-02-13: 30.7 µg/m³2026-02-14: 34.3 µg/m³2026-02-15: 39.0 µg/m³2026-02-16: 37.1 µg/m³2026-02-17: 36.7 µg/m³2026-02-18: 27.8 µg/m³2026-02-19: 22.6 µg/m³2026-02-20: 21.1 µg/m³2026-02-21: 27.3 µg/m³2026-02-22: 31.9 µg/m³2026-02-23: 39.5 µg/m³2026-02-24: 34.8 µg/m³2026-02-25: 27.3 µg/m³2026-02-26: 26.2 µg/m³2026-02-27: 21.9 µg/m³2026-02-28: 19.8 µg/m³2026-03-01: 20.2 µg/m³2026-03-02: 24.4 µg/m³2026-03-03: 28.4 µg/m³2026-03-04: 31.0 µg/m³2026-03-05: 38.3 µg/m³2026-03-06: 29.5 µg/m³2026-03-07: 20.2 µg/m³2026-03-08: 21.8 µg/m³2026-03-09: 27.5 µg/m³2026-03-10: 25.4 µg/m³2026-03-11: 25.2 µg/m³2026-03-12: 28.0 µg/m³2026-03-13: 25.8 µg/m³2026-03-14: 26.9 µg/m³2026-03-15: 21.2 µg/m³2026-03-16: 27.5 µg/m³2026-03-17: 28.8 µg/m³2026-03-18: 25.1 µg/m³2026-03-19: 27.3 µg/m³2026-03-20: 26.2 µg/m³2026-03-21: no data2026-03-22: 21.1 µg/m³2026-03-23: 32.7 µg/m³2026-03-24: 26.2 µg/m³2026-03-25: 26.9 µg/m³2026-03-26: 34.0 µg/m³2026-03-27: 46.8 µg/m³2026-03-28: 41.9 µg/m³2026-03-29: 31.6 µg/m³2026-03-30: 31.1 µg/m³2026-03-31: 29.6 µg/m³2026-04-01: 42.0 µg/m³2026-04-02: 53.6 µg/m³2026-04-03: 46.9 µg/m³2026-04-04: 50.6 µg/m³2026-04-05: 61.4 µg/m³2026-04-06: 67.8 µg/m³2026-04-07: 63.7 µg/m³2026-04-08: 51.4 µg/m³2026-04-09: 50.6 µg/m³2026-04-10: 53.0 µg/m³2026-04-11: 43.4 µg/m³2026-04-12: 50.5 µg/m³2026-04-13: 57.4 µg/m³2026-04-14: 54.8 µg/m³2026-04-15: 54.4 µg/m³2026-04-16: 55.0 µg/m³2026-04-17: 57.6 µg/m³2026-04-18: 54.0 µg/m³2026-04-19: 63.5 µg/m³2026-04-20: 41.2 µg/m³2026-04-21: 40.2 µg/m³2026-04-22: 41.9 µg/m³2026-04-23: 51.1 µg/m³2026-04-24: 36.7 µg/m³2026-04-25: 30.1 µg/m³2026-04-26: 26.3 µg/m³2026-04-27: 23.8 µg/m³2026-04-28: 26.7 µg/m³2026-04-29: 26.1 µg/m³2026-04-30: 23.8 µg/m³2026-05-01: 11.7 µg/m³2026-05-02: 11.2 µg/m³2026-05-03: 18.0 µg/m³2026-05-04: 25.5 µg/m³2026-05-05: 18.1 µg/m³2026-05-06: 14.2 µg/m³2026-05-07: 19.7 µg/m³2026-05-08: 18.1 µg/m³2026-05-09: 10.3 µg/m³2026-05-10: 9.9 µg/m³2026-05-11: 12.6 µg/m³2026-05-12: 13.5 µg/m³2026-05-13: 9.8 µg/m³2026-05-14: 6.8 µg/m³2026-05-15: 5.5 µg/m³2026-05-16: 6.4 µg/m³2026-05-17: 8.5 µg/m³2026-05-18: 10.5 µg/m³2026-05-19: 8.8 µg/m³2026-05-20: 6.5 µg/m³2026-05-21: 6.8 µg/m³2026-05-22: 15.6 µg/m³2026-05-23: 13.0 µg/m³2026-05-24: 11.2 µg/m³2026-05-25: 13.0 µg/m³2026-05-26: 12.4 µg/m³2026-05-27: 11.0 µg/m³2026-05-28: 12.7 µg/m³2026-05-29: 11.2 µg/m³2026-05-30: 10.0 µg/m³2026-05-31: 9.8 µg/m³2026-06-01: 15.1 µg/m³2026-06-02: 15.6 µg/m³2026-06-03: 16.0 µg/m³2026-06-04: 16.9 µg/m³2026-06-05: 10.5 µg/m³2026-06-06: 9.1 µg/m³2026-06-07: 10.0 µg/m³2026-06-08: 9.9 µg/m³2026-06-09: 9.0 µg/m³2026-06-10: 9.6 µg/m³2026-06-11: 7.7 µg/m³2026-06-12: 8.6 µg/m³2026-06-13: no data2026-06-14: 8.2 µg/m³2026-06-15: 8.3 µg/m³2026-06-16: 11.1 µg/m³2026-06-17: 11.1 µg/m³2026-06-18: 9.8 µg/m³2026-06-19: 10.3 µg/m³2026-06-20: 10.1 µg/m³2026-06-21: 12.7 µg/m³2026-06-22: 13.2 µg/m³2026-06-23: 17.0 µg/m³2026-06-24: 18.6 µg/m³2026-06-25: 13.6 µg/m³2026-06-26: 11.3 µg/m³2026-06-27: 11.8 µg/m³2026-06-28: 12.2 µg/m³2026-06-29: 10.7 µg/m³2026-06-30: 10.4 µg/m³2026-07-01: 9.9 µg/m³2026-07-02: no data2026-07-03: no data2026-07-04: no data2026-07-05: no data2026-07-06: no data2026-07-07: no data2026-07-08: no data2026-07-09: no data2026-07-10: no data2026-07-11: no data2026-07-12: no data2026-07-13: no data2026-07-14: no data2026-07-15: no data2026-07-16: no data2026-07-17: no data2026-07-18: no data2026-07-19: no data2026-07-20: no data2026-07-21: no data2026-07-22: no data2026-07-23: no data2026-07-24: no data2026-07-25: no data2026-07-26: no data2026-07-27: no data2026-07-28: no data2026-07-29: no data2026-07-30: 11.0 µg/m³2026-07-31: 10.7 µg/m³2026-08-01: 8.8 µg/m³2026-08-02: 7.8 µg/m³2026-08-03: 8.2 µg/m³2026-08-04: 9.0 µg/m³2026-08-05: 9.9 µg/m³2026-08-06: 7.1 µg/m³2026-08-07: 6.4 µg/m³2026-08-08: 7.2 µg/m³2026-08-09: 8.3 µg/m³2026-08-10: 9.0 µg/m³2026-08-11: 9.3 µg/m³2026-08-12: 12.4 µg/m³2026-08-13: 12.6 µg/m³2026-08-14: 10.8 µg/m³2026-08-15: 11.7 µg/m³2026-08-16: 10.3 µg/m³2026-08-17: 11.2 µg/m³2026-08-18: 12.2 µg/m³2026-08-19: 12.3 µg/m³2026-08-20: 9.8 µg/m³2026-08-21: 8.3 µg/m³2026-08-22: 8.8 µg/m³2026-08-23: 10.1 µg/m³2026-08-24: 11.3 µg/m³2026-08-25: 15.2 µg/m³2026-08-26: 10.8 µg/m³2026-08-27: 6.8 µg/m³2026-08-28: 6.3 µg/m³2026-08-29: 8.5 µg/m³2026-08-30: 7.9 µg/m³2026-08-31: 7.0 µg/m³2026-09-01: 6.2 µg/m³2026-09-02: 7.0 µg/m³2026-09-03: 8.5 µg/m³2026-09-04: 10.4 µg/m³2026-09-05: 9.4 µg/m³2026-09-06: 9.6 µg/m³2026-09-07: 8.7 µg/m³2026-09-08: 9.1 µg/m³2026-09-09: 9.0 µg/m³2026-09-10: 6.4 µg/m³2026-09-11: 6.9 µg/m³2026-09-12: 12.2 µg/m³2026-09-13: 15.3 µg/m³2026-09-14: 12.1 µg/m³2026-09-15: 8.1 µg/m³2026-09-16: 6.6 µg/m³2026-09-17: 6.4 µg/m³2026-09-18: 4.3 µg/m³2026-09-19: 4.1 µg/m³2026-09-20: 4.9 µg/m³2026-09-21: 4.8 µg/m³2026-09-22: 6.4 µg/m³2026-09-23: 9.8 µg/m³2026-09-24: 9.8 µg/m³2026-09-25: 6.0 µg/m³2026-09-26: 4.5 µg/m³2026-09-27: 4.8 µg/m³2026-09-28: 5.3 µg/m³2026-09-29: 5.2 µg/m³2026-09-30: 8.2 µg/m³2026-10-01: 9.3 µg/m³2026-10-02: no data
175 of 295 measured days were over the WHO 24-hour guideline (15 µg/m³). One row per month, one square per local day.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales

Last 4 days, hour by hour

15302026-10-02 01:00 UTC: 9.7 µg/m³2026-10-02 02:00 UTC: 9.4 µg/m³2026-10-02 03:00 UTC: 9.3 µg/m³2026-10-02 04:00 UTC: 9.3 µg/m³2026-10-02 05:00 UTC: 9.3 µg/m³2026-10-02 06:00 UTC: 9.3 µg/m³2026-10-02 07:00 UTC: 9.2 µg/m³2026-10-02 08:00 UTC: 9.8 µg/m³2026-10-02 09:00 UTC: 8.7 µg/m³2026-10-02 10:00 UTC: 8.7 µg/m³2026-10-02 11:00 UTC: 8.9 µg/m³2026-10-02 12:00 UTC: 8.9 µg/m³2026-10-02 13:00 UTC: 9.1 µg/m³2026-10-02 14:00 UTC: 8.8 µg/m³2026-10-02 15:00 UTC: 8.7 µg/m³2026-10-02 16:00 UTC: 8.7 µg/m³2026-10-02 17:00 UTC: 8.5 µg/m³2026-10-02 18:00 UTC: 8.3 µg/m³2026-10-02 19:00 UTC: 8.1 µg/m³2026-10-02 20:00 UTC: 8.0 µg/m³2026-10-02 21:00 UTC: 8.1 µg/m³2026-10-02 22:00 UTC: 8.2 µg/m³2026-10-02 23:00 UTC: 8.6 µg/m³2026-10-03 00:00 UTC: 8.2 µg/m³2026-10-03 01:00 UTC: 8.4 µg/m³2026-10-03 02:00 UTC: 8.7 µg/m³2026-10-03 03:00 UTC: 8.8 µg/m³2026-10-03 04:00 UTC: 8.8 µg/m³2026-10-03 05:00 UTC: 9.2 µg/m³2026-10-03 06:00 UTC: 9.1 µg/m³2026-10-03 07:00 UTC: 9.1 µg/m³2026-10-03 08:00 UTC: 9.1 µg/m³2026-10-03 09:00 UTC: 9.1 µg/m³2026-10-03 10:00 UTC: 9.2 µg/m³2026-10-03 11:00 UTC: 9.4 µg/m³Sep 30Oct 1Oct 2Oct 3
Times in UTC. Dashed line: WHO 24-hour guideline (15 µg/m³).

Where it stood each day

Top 10Top 100#1#10#100#1,000#2,835NovDecJanFebMarAprMayJunJulAugSep#1,182
Its rank on each day's world board, #1 being the most polluted city that day. The scale is logarithmic: each step down is ten times as many cities. See it among every city.

2026 against 2025, month by month

15Jan 2026: 29.8 µg/m³JanFeb 2025: 36.6 µg/m³Feb 2026: 29.2 µg/m³FebMar 2025: 43.4 µg/m³Mar 2026: 28.4 µg/m³MarApr 2025: 23.8 µg/m³Apr 2026: 46.6 µg/m³AprMay 2025: 8.4 µg/m³May 2026: 12.0 µg/m³MayJun 2025: 9.8 µg/m³Jun 2026: 11.7 µg/m³JunJulAug 2026: 9.5 µg/m³AugSep 2025: 8.5 µg/m³Sep 2026: 7.7 µg/m³SepOct 2025: 10.4 µg/m³OctNov 2025: 25.6 µg/m³NovDec 2025: 23.6 µg/m³Dec
Faded bars: 2025. A month shows once it has 10 measured days.

This week against past years

This weekThis week: 6.2 µg/m³6.220252025: 8.0 µg/m³8.02024no data2023no data
Mean PM2.5 for 26 Sept to 2 Oct in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
Phetbura gardenPermission requested (Thailand PCD, Air4Thai, 2026-10-01)Air4ThaiReference

The city's value is the median of its reference monitors each hour, when at least a third of them report (three are always enough); low-cost sensors are listed but not counted when reference monitors exist. Data via OpenAQ; licences as listed. How we rank. Embed this on your site.

Use this page

SmogRank, PM2.5 daily means, Phetchabun, Thailand, 3 Oct 2025 – 1 Oct 2026, smogrank.com/th/phetchabun (accessed 3 Oct 2026).

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Other cities in Thailand

30-day averages, US AQI. All of Thailand.

Updated 2026-10-03 12:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.