SmogRank / South Korea / Jeollanam-do / Beolgyo
Beolgyo, month by month
Beolgyo has a measured daily mean on 841 days since 23 March 2024. Its worst month was March 2026, at 63 US AQI (15.3 µg/m³), 821st of 2,971 cities on that month's world ranking. Its cleanest was July 2024, at 27 US AQI (4.9 µg/m³). 2025 averaged 55 US AQI (11.1 µg/m³), against 52 US AQI (9.5 µg/m³) in 2024.
Every month since 2024
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
5 months
| Month | Why |
|---|---|
| Sep 2026 | No day measured. The others: 29 with readings left out by our checks, 1 with under 18 hours of readings or readings that failed our checks. |
| Aug 2026 | 6 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks. |
| Jul 2026 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| May 2026 | 21 of 31 days measured; a month needs 22. The others: 10 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 8 of 31 days measured; a month needs 22. The others: 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.
Beolgyo's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| March 2026 | 6315.3 µg/m³ | 821stof 2,971 | Japan and South Korea, March 2026 |
| March 2025 | 6214.8 µg/m³ | 964thof 2,862 | Japan and South Korea, March 2025 |
| February 2026 | 5913.3 µg/m³ | 895thof 2,866 | – |
| January 2025 | 5812.7 µg/m³ | 652ndof 2,474 | Japan and South Korea, 17 to 24 January 2025 |
| November 2025 | 5812.6 µg/m³ | 703rdof 2,715 | – |
| May 2025 | 5712.5 µg/m³ | 552ndof 2,826 | South Korea and Japan, 27 May to 3 June 2025 |
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.
Beolgyo's worst days
| Day | US AQI | Episode |
|---|---|---|
| 24 Mar 2026 | 9130.8 µg/m³ | Japan and South Korea, March 2026 |
| 25 Mar 2025 | 9030.3 µg/m³ | Japan and South Korea, March 2025 |
| 21 Jan 2025 | 8628.0 µg/m³ | Japan and South Korea, 17 to 24 January 2025 |
| 3 Apr 2026 | 8426.9 µg/m³ | – |
| 25 Mar 2026 | 8225.8 µg/m³ | Japan and South Korea, March 2026 |
| 28 May 2025 | 8225.5 µg/m³ | South Korea and Japan, 27 May to 3 June 2025 |
| 10 Mar 2026 | 8225.5 µg/m³ | – |
| 1 Jun 2025 | 8024.4 µg/m³ | South Korea and Japan, 27 May to 3 June 2025 |
| 24 Mar 2025 | 7924.2 µg/m³ | Japan and South Korea, March 2025 |
| 8 Jul 2025 | 7924.0 µg/m³ | – |
Daily means, the highest since 23 Mar 2024; 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, Beolgyo, South Korea, 23 Mar 2024 – 12 Oct 2026. Monitor data from Korea Air Ministry of Environment via OpenAQ; sources listed at smogrank.com/sources. smogrank.com/kr/beolgyo/history (accessed 12 Oct 2026).
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.
Beolgyo now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 21:07 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).