SmogRank / Thailand / Buriram / Buri Ram

Buri Ram, month by month

Buri Ram has a measured daily mean on 745 days since 1 January 2023. Its worst month was February 2024, at 108 US AQI (38.5 µg/m³), 65th of 2,486 cities on that month's world ranking. Its cleanest was September 2025, at 29 US AQI (5.3 µg/m³).

Every month since 2023

202667 so far256 days measured428th of 2,793 in the world
Jan90#174Feb72#532Mar82#405Apr85#263May59#492Jun43#1,146Jul3 daysAug48#1,296Sep51#773Oct63#229
2025too few days for a mean (a year needs 256)198 days measured
Jan5 daysFeb90#213Mar94#251Apr83#212May46#1,255Jun52#1,357JulnoneAug6 daysSep29#2,453Oct10 daysNov12 daysDec8 days
2024too few days for a mean (a year needs 257)202 days measured
Jan80#185Feb108#65Mar20 daysApr87#92May62#280Jun31#2,133Jul19 daysAug17 daysSep5 daysOct3 daysNov3 daysDec1 day
2023too few days for a mean (a year needs 256)89 days measured
Jan78#107Feb2 daysMar9 daysApr19 daysMay15 daysJun10 daysJul5 daysAug3 daysSep3 daysOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Buri Ram's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Buri Ram marked; each year, the year's. A dashed square is the running month, so far.
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

Months without a mean, and why

25 months
MonthWhy
Jul 20263 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Dec 20258 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Nov 202512 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
Oct 202510 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Aug 20256 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks.
Jul 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jan 20255 of 31 days measured; a month needs 22. The others: 26 with under 18 hours of readings or readings that failed our checks.
Dec 20241 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Nov 20243 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Oct 20243 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Sep 20245 of 30 days measured; a month needs 21. The others: 25 with under 18 hours of readings or readings that failed our checks.
Aug 202417 of 31 days measured; a month needs 22. The others: 14 with under 18 hours of readings or readings that failed our checks.
Jul 202419 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks.
Mar 202420 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Aug 20233 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jul 20235 of 31 days measured; a month needs 22. The others: 1 missing from OpenAQ's archive, 25 with under 18 hours of readings or readings that failed our checks.
Jun 202310 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks.
May 202315 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Apr 202319 of 30 days measured; a month needs 21. The others: 2 missing from OpenAQ's archive, 9 with under 18 hours of readings or readings that failed our checks.
Mar 20239 of 31 days measured; a month needs 22. The others: 19 missing from OpenAQ's archive, 3 with under 18 hours of readings or readings that failed our checks.
Feb 20232 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive, 1 with under 18 hours of readings or readings that failed our checks.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Buri Ram's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2024 10838.5 µg/m³22 of 2965thof 2,486Thailand, February 2024
March 2025 9432.4 µg/m³27 of 31251stof 2,862Thailand and Laos, March 2025
January 2026 9030.3 µg/m³31 of 31174thof 2,617–
February 2025 9030.1 µg/m³28 of 28213thof 2,633Thailand, 1 to 3 February 2025
April 2024 8728.3 µg/m³29 of 3092ndof 2,520–
April 2026 8527.2 µg/m³30 of 30263rdof 2,941–

Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.

Buri Ram's worst days

DayUS AQIEpisode
25 Mar 2025 16474.5 µg/m³Thailand and Laos, March 2025
26 Jan 2025 16271.8 µg/m³Northern Thailand, January 2025
25 Jan 2025 16067.7 µg/m³Northern Thailand, January 2025
15 Feb 2024 15865.0 µg/m³Thailand, February 2024
3 Feb 2025 15764.0 µg/m³Thailand, 1 to 3 February 2025
26 Mar 2025 15663.3 µg/m³Thailand and Laos, March 2025
1 Feb 2023 15561.1 µg/m³Northern Thailand and Laos, January and February 2023
12 Apr 2024 15358.4 µg/m³–
18 Jan 2026 15358.4 µg/m³–
7 Feb 2025 15257.0 µg/m³–

Daily means, the highest since 1 Jan 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.

Use this history

SmogRank, PM2.5 monthly and daily means, Buri Ram, Thailand, 1 Jan 2023 – 12 Oct 2026. Monitor data from Air4Thai via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/th/buri-ram/history (accessed 12 Oct 2026).

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You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.

Buri Ram now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 22:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).