SmogRank / South Korea / Gyeongsangnam-do

Air quality in Hadong

Gyeongsangnam-do, South Korea. PM2.5 from 1 reference monitor, updated hourly.

17US AQI
Good

Latest hour (03:00 UTC), 0.2× the WHO 24-hour guideline. PM2.5 3.0 µg/m³.

Rank, worst first

24 hours–not enough data
7 days#570of 2,605, at 55 US AQI (11.4 µg/m³)
30 days#17of 2,626, at 200 US AQI (125.3 µg/m³)
This year#5of 2,447, at 213 US AQI (137.2 µg/m³)

Why it ranks here

Seasonal. Over the past year its worst months were August, averaging up to 364.8 µg/m³ against 7.1 in its cleanest month. Seasonal peaks usually come from heating, crop burning, fire or dust seasons.

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

The last 12 months, day by day

1102031Nov 2025DecJan 2026FebMarAprMayJunJulAugSepOct2025-11-01: 11.2 µg/m³2025-11-02: 9.1 µg/m³2025-11-03: 7.8 µg/m³2025-11-04: 14.0 µg/m³2025-11-05: 13.4 µg/m³2025-11-06: 14.2 µg/m³2025-11-07: 14.8 µg/m³2025-11-08: 11.6 µg/m³2025-11-09: 12.3 µg/m³2025-11-10: 9.4 µg/m³2025-11-11: 4.8 µg/m³2025-11-12: 6.5 µg/m³2025-11-13: 10.7 µg/m³2025-11-14: 16.7 µg/m³2025-11-15: 8.6 µg/m³2025-11-16: 10.0 µg/m³2025-11-17: 10.6 µg/m³2025-11-18: 12.6 µg/m³2025-11-19: 12.5 µg/m³2025-11-20: 14.5 µg/m³2025-11-21: 10.0 µg/m³2025-11-22: 13.6 µg/m³2025-11-23: 15.8 µg/m³2025-11-24: 850.0 µg/m³2025-11-25: 24.3 µg/m³2025-11-26: 20.4 µg/m³2025-11-27: 20.6 µg/m³2025-11-28: 6.8 µg/m³2025-11-29: 8.9 µg/m³2025-11-30: 12.5 µg/m³2025-12-01: 848.0 µg/m³2025-12-02: 14.3 µg/m³2025-12-03: 7.0 µg/m³2025-12-04: 7.0 µg/m³2025-12-05: 8.1 µg/m³2025-12-06: 9.6 µg/m³2025-12-07: 25.3 µg/m³2025-12-08: 1,260.0 µg/m³2025-12-09: 8.6 µg/m³2025-12-10: 17.8 µg/m³2025-12-11: 24.6 µg/m³2025-12-12: 13.2 µg/m³2025-12-13: 4.5 µg/m³2025-12-14: 6.7 µg/m³2025-12-15: 14.5 µg/m³2025-12-16: 17.5 µg/m³2025-12-17: 26.5 µg/m³2025-12-18: 17.8 µg/m³2025-12-19: 16.9 µg/m³2025-12-20: 24.0 µg/m³2025-12-21: 9.5 µg/m³2025-12-22: 840.0 µg/m³2025-12-23: 9.5 µg/m³2025-12-24: 8.0 µg/m³2025-12-25: 8.9 µg/m³2025-12-26: 4.0 µg/m³2025-12-27: 14.8 µg/m³2025-12-28: 12.5 µg/m³2025-12-29: 19.5 µg/m³2025-12-30: 26.5 µg/m³2025-12-31: 6.2 µg/m³2026-01-01: 6.1 µg/m³2026-01-02: 7.3 µg/m³2026-01-03: 9.9 µg/m³2026-01-04: 22.9 µg/m³2026-01-05: 10.2 µg/m³2026-01-06: 11.0 µg/m³2026-01-07: 17.7 µg/m³2026-01-08: 6.3 µg/m³2026-01-09: 9.0 µg/m³2026-01-10: 15.3 µg/m³2026-01-11: no data2026-01-12: 13.5 µg/m³2026-01-13: 13.8 µg/m³2026-01-14: 13.7 µg/m³2026-01-15: 24.6 µg/m³2026-01-16: 26.4 µg/m³2026-01-17: 27.5 µg/m³2026-01-18: 26.3 µg/m³2026-01-19: 21.9 µg/m³2026-01-20: 7.9 µg/m³2026-01-21: 6.0 µg/m³2026-01-22: 5.3 µg/m³2026-01-23: 13.8 µg/m³2026-01-24: 15.1 µg/m³2026-01-25: 8.9 µg/m³2026-01-26: 6.1 µg/m³2026-01-27: 13.8 µg/m³2026-01-28: 8.3 µg/m³2026-01-29: 17.6 µg/m³2026-01-30: 6.9 µg/m³2026-01-31: 13.0 µg/m³2026-02-01: 19.1 µg/m³2026-02-02: 17.3 µg/m³2026-02-03: 14.3 µg/m³2026-02-04: 23.5 µg/m³2026-02-05: 24.4 µg/m³2026-02-06: 21.5 µg/m³2026-02-07: 9.5 µg/m³2026-02-08: 9.0 µg/m³2026-02-09: 15.8 µg/m³2026-02-10: 17.0 µg/m³2026-02-11: 24.6 µg/m³2026-02-12: 34.7 µg/m³2026-02-13: 30.4 µg/m³2026-02-14: 26.8 µg/m³2026-02-15: 32.3 µg/m³2026-02-16: 16.6 µg/m³2026-02-17: 13.6 µg/m³2026-02-18: 15.5 µg/m³2026-02-19: 7.8 µg/m³2026-02-20: 26.7 µg/m³2026-02-21: 36.6 µg/m³2026-02-22: 29.6 µg/m³2026-02-23: 18.9 µg/m³2026-02-24: 10.0 µg/m³2026-02-25: 6.4 µg/m³2026-02-26: 9.3 µg/m³2026-02-27: 8.8 µg/m³2026-02-28: 12.9 µg/m³2026-03-01: 14.5 µg/m³2026-03-02: 5.9 µg/m³2026-03-03: 4.7 µg/m³2026-03-04: 16.5 µg/m³2026-03-05: 16.1 µg/m³2026-03-06: 14.6 µg/m³2026-03-07: 20.0 µg/m³2026-03-08: 15.8 µg/m³2026-03-09: 30.1 µg/m³2026-03-10: 46.0 µg/m³2026-03-11: 33.8 µg/m³2026-03-12: 28.1 µg/m³2026-03-13: 11.2 µg/m³2026-03-14: 13.8 µg/m³2026-03-15: 34.1 µg/m³2026-03-16: 36.7 µg/m³2026-03-17: 33.8 µg/m³2026-03-18: 15.4 µg/m³2026-03-19: 29.0 µg/m³2026-03-20: 15.0 µg/m³2026-03-21: 23.8 µg/m³2026-03-22: 23.0 µg/m³2026-03-23: 22.3 µg/m³2026-03-24: 48.9 µg/m³2026-03-25: 45.7 µg/m³2026-03-26: 39.0 µg/m³2026-03-27: 44.1 µg/m³2026-03-28: 34.5 µg/m³2026-03-29: 44.3 µg/m³2026-03-30: 32.0 µg/m³2026-03-31: 6.3 µg/m³2026-04-01: 18.7 µg/m³2026-04-02: 14.7 µg/m³2026-04-03: 32.5 µg/m³2026-04-04: 8.1 µg/m³2026-04-05: 18.8 µg/m³2026-04-06: 18.8 µg/m³2026-04-07: 7.9 µg/m³2026-04-08: 13.1 µg/m³2026-04-09: 11.9 µg/m³2026-04-10: 6.3 µg/m³2026-04-11: 17.1 µg/m³2026-04-12: 23.5 µg/m³2026-04-13: 22.0 µg/m³2026-04-14: 22.8 µg/m³2026-04-15: 19.5 µg/m³2026-04-16: 15.9 µg/m³2026-04-17: 11.2 µg/m³2026-04-18: 9.6 µg/m³2026-04-19: 14.9 µg/m³2026-04-20: 16.2 µg/m³2026-04-21: 27.3 µg/m³2026-04-22: 14.5 µg/m³2026-04-23: 13.1 µg/m³2026-04-24: 12.3 µg/m³2026-04-25: 13.3 µg/m³2026-04-26: 19.4 µg/m³2026-04-27: 19.5 µg/m³2026-04-28: 18.1 µg/m³2026-04-29: no data2026-04-30: no data2026-05-01: 11.8 µg/m³2026-05-02: 21.5 µg/m³2026-05-03: 844.0 µg/m³2026-05-04: 426.0 µg/m³2026-05-05: 428.0 µg/m³2026-05-06: no data2026-05-07: no data2026-05-08: 9.2 µg/m³2026-05-09: 10.1 µg/m³2026-05-10: 13.9 µg/m³2026-05-11: 429.0 µg/m³2026-05-12: 8.8 µg/m³2026-05-13: 14.8 µg/m³2026-05-14: 25.5 µg/m³2026-05-15: 847.0 µg/m³2026-05-16: 435.0 µg/m³2026-05-17: 27.5 µg/m³2026-05-18: 863.0 µg/m³2026-05-19: 443.0 µg/m³2026-05-20: 3.6 µg/m³2026-05-21: 439.0 µg/m³2026-05-22: 8.0 µg/m³2026-05-23: 14.3 µg/m³2026-05-24: 433.0 µg/m³2026-05-25: 432.0 µg/m³2026-05-26: 847.0 µg/m³2026-05-27: 4.2 µg/m³2026-05-28: 5.0 µg/m³2026-05-29: 24.8 µg/m³2026-05-30: 13.3 µg/m³2026-05-31: 12.5 µg/m³2026-06-01: 859.0 µg/m³2026-06-02: 11.3 µg/m³2026-06-03: 11.5 µg/m³2026-06-04: 11.2 µg/m³2026-06-05: 7.7 µg/m³2026-06-06: 7.9 µg/m³2026-06-07: 10.0 µg/m³2026-06-08: 848.0 µg/m³2026-06-09: 432.0 µg/m³2026-06-10: 13.5 µg/m³2026-06-11: 11.4 µg/m³2026-06-12: 14.1 µg/m³2026-06-13: 19.1 µg/m³2026-06-14: 15.8 µg/m³2026-06-15: 848.0 µg/m³2026-06-16: 844.0 µg/m³2026-06-17: 12.1 µg/m³2026-06-18: 11.6 µg/m³2026-06-19: 14.9 µg/m³2026-06-20: 3.3 µg/m³2026-06-21: 6.6 µg/m³2026-06-22: 844.0 µg/m³2026-06-23: 7.8 µg/m³2026-06-24: 3.2 µg/m³2026-06-25: 3.4 µg/m³2026-06-26: 843.0 µg/m³2026-06-27: 13.6 µg/m³2026-06-28: 21.4 µg/m³2026-06-29: 856.0 µg/m³2026-06-30: 18.5 µg/m³2026-07-01: 5.5 µg/m³2026-07-02: 15.4 µg/m³2026-07-03: 435.0 µg/m³2026-07-04: 9.3 µg/m³2026-07-05: 7.1 µg/m³2026-07-06: 842.0 µg/m³2026-07-07: 15.8 µg/m³2026-07-08: 9.1 µg/m³2026-07-09: 12.4 µg/m³2026-07-10: 12.5 µg/m³2026-07-11: 429.0 µg/m³2026-07-12: 16.3 µg/m³2026-07-13: 430.0 µg/m³2026-07-14: 11.9 µg/m³2026-07-15: 15.2 µg/m³2026-07-16: 18.5 µg/m³2026-07-17: 18.7 µg/m³2026-07-18: 22.3 µg/m³2026-07-19: 18.4 µg/m³2026-07-20: 434.0 µg/m³2026-07-21: 13.5 µg/m³2026-07-22: 13.5 µg/m³2026-07-23: 15.4 µg/m³2026-07-24: 845.0 µg/m³2026-07-25: 9.2 µg/m³2026-07-26: 8.7 µg/m³2026-07-27: 423.0 µg/m³2026-07-28: 425.0 µg/m³2026-07-29: 839.0 µg/m³2026-07-30: 839.0 µg/m³2026-07-31: 840.0 µg/m³2026-08-01: 432.0 µg/m³2026-08-02: no data2026-08-03: no data2026-08-04: no data2026-08-05: 1,270.0 µg/m³2026-08-06: 15.5 µg/m³2026-08-07: 9.8 µg/m³2026-08-08: 6.6 µg/m³2026-08-09: 7.5 µg/m³2026-08-10: 1,260.0 µg/m³2026-08-11: 4.2 µg/m³2026-08-12: 421.0 µg/m³2026-08-13: 7.2 µg/m³2026-08-14: 13.0 µg/m³2026-08-15: 850.0 µg/m³2026-08-16: 6.8 µg/m³2026-08-17: 1.3 µg/m³2026-08-18: no data2026-08-19: 422.0 µg/m³2026-08-20: 11.0 µg/m³2026-08-21: 24.3 µg/m³2026-08-22: 854.0 µg/m³2026-08-23: 442.0 µg/m³2026-08-24: 1,280.0 µg/m³2026-08-25: no data2026-08-26: 449.0 µg/m³2026-08-27: 856.0 µg/m³2026-08-28: 2.7 µg/m³2026-08-29: 1.1 µg/m³2026-08-30: 1.2 µg/m³2026-08-31: 836.0 µg/m³2026-09-01: 5.4 µg/m³2026-09-02: 425.0 µg/m³2026-09-03: 15.3 µg/m³2026-09-04: 5.5 µg/m³2026-09-05: 4.0 µg/m³2026-09-06: 7.5 µg/m³2026-09-07: 847.0 µg/m³2026-09-08: 10.3 µg/m³2026-09-09: 5.8 µg/m³2026-09-10: 4.3 µg/m³2026-09-11: 7.8 µg/m³2026-09-12: 9.9 µg/m³2026-09-13: 432.0 µg/m³2026-09-14: no data2026-09-15: 437.0 µg/m³2026-09-16: 15.5 µg/m³2026-09-17: 4.8 µg/m³2026-09-18: 5.8 µg/m³2026-09-19: 8.3 µg/m³2026-09-20: 7.8 µg/m³2026-09-21: 1,260.0 µg/m³2026-09-22: 10.7 µg/m³2026-09-23: 10.8 µg/m³2026-09-24: 18.8 µg/m³2026-09-25: 19.6 µg/m³2026-09-26: 7.3 µg/m³2026-09-27: 5.3 µg/m³2026-09-28: 9.4 µg/m³2026-09-29: 14.8 µg/m³2026-09-30: 11.9 µg/m³2026-10-01: 11.4 µg/m³
156 of 354 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 00:00 UTC: 5.0 µg/m³2026-10-02 01:00 UTC: 4.0 µg/m³2026-10-02 02:00 UTC: 6.0 µg/m³2026-10-02 03:00 UTC: 3.0 µg/m³Sep 29Sep 30Oct 1
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#537
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 2025: 16.5 µg/m³Jan 2026: 13.5 µg/m³JanFeb 2025: 11.5 µg/m³Feb 2026: 19.0 µg/m³FebMar 2025: 17.4 µg/m³Mar 2026: 25.8 µg/m³MarApr 2025: 14.9 µg/m³Apr 2026: 16.5 µg/m³AprMay 2025: 14.3 µg/m³May 2026: 244.6 µg/m³MayJun 2025: 14.5 µg/m³Jun 2026: 220.8 µg/m³JunJul 2025: 11.4 µg/m³Jul 2026: 227.4 µg/m³JulAug 2025: 10.5 µg/m³Aug 2026: 364.8 µg/m³AugSep 2025: 7.3 µg/m³Sep 2026: 125.1 µg/m³SepOct 2025: 7.0 µg/m³OctNov 2025: 40.3 µg/m³NovDec 2025: 107.5 µg/m³Dec
Faded bars: 2025. A month shows once it has 10 measured days.

This week against past years

This weekThis week: 11.4 µg/m³11.420252025: 8.1 µg/m³8.1
Mean PM2.5 for 25 Sept to 1 Oct in each year. Dashed line: WHO 24-hour guideline.

Monitors

StationOperatorType
하동읍Permission requested (AirKorea, 2026-10-01)Korea Air Ministry of EnvironmentReference

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, Hadong, South Korea, 2 Oct 2025 – 1 Oct 2026, smogrank.com/kr/hadong (accessed 2 Oct 2026).

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Other cities in South Korea

30-day averages, US AQI. All of South Korea.

Updated 2026-10-02 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.