Air Pollution in South Korea — Live AQI by City, PM2.5/PM10, Smog Alerts and Forecasts

2 weather warnings in effect for South Korea 🌡️ Extreme heat💨 Strong wind

Locations

Seoul

12 PM2.5 µg/m³

Good

PM10 13 NO₂ 36 O₃ 36

Busan

8 PM2.5 µg/m³

Good

PM10 10 NO₂ 18 O₃ 51

Incheon

12 PM2.5 µg/m³

Good

PM10 13 NO₂ 36 O₃ 36

Daegu

12 PM2.5 µg/m³

Good

PM10 13 NO₂ 29 O₃ 70

Daejeon

28 PM2.5 µg/m³

Moderate

PM10 29 NO₂ 52 O₃ 87

Gwangju

9.9 PM2.5 µg/m³

Good

PM10 11 NO₂ 17 O₃ 96

Suwon

27 PM2.5 µg/m³

Moderate

PM10 28 NO₂ 64 O₃ 19

Goyang

12 PM2.5 µg/m³

Good

PM10 13 NO₂ 36 O₃ 36

Seongnam

20 PM2.5 µg/m³

Moderate

PM10 20 NO₂ 47 O₃ 39

Ulsan

8.6 PM2.5 µg/m³

Good

PM10 9.2 NO₂ 26 O₃ 80

Jeonju

26 PM2.5 µg/m³

Moderate

PM10 27 NO₂ 36 O₃ 100

Ansan-si

18 PM2.5 µg/m³

Moderate

PM10 18 NO₂ 52 O₃ 17

Cheongju-si

36 PM2.5 µg/m³

Unhealthy for Sensitive Groups

PM10 37 NO₂ 45 O₃ 81

Anyang

18 PM2.5 µg/m³

Moderate

PM10 18 NO₂ 52 O₃ 17

Changwon

7.1 PM2.5 µg/m³

Good

PM10 9.4 NO₂ 12 O₃ 56

Pohang

8.8 PM2.5 µg/m³

Good

PM10 9.2 NO₂ 40 O₃ 32

Uijeongbu

20 PM2.5 µg/m³

Moderate

PM10 20 NO₂ 47 O₃ 39

Hwaseong

18 PM2.5 µg/m³

Moderate

PM10 18 NO₂ 52 O₃ 17

Jeju

5.2 PM2.5 µg/m³

Good

PM10 7.8 NO₂ 4.2 O₃ 34

Cheonan

32 PM2.5 µg/m³

Moderate

PM10 32 NO₂ 62 O₃ 32

Current data Thursday, August 27, 2026 at 10:00 AM

PM2,5 17 (Moderate)

PM10 18 (Good)

O3 49 (Good)

NO2 38 (Good)

SO2 25 (Good)

CO 271 (Good)

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
PM2,5	21 Moderate	22 Moderate	15 Moderate	23 Moderate	18 Moderate	16 Moderate	24 Moderate	24 Moderate
PM10	22 Moderate	23 Moderate	17 Good	24 Moderate	19 Good	17 Good	25 Moderate	25 Moderate
O3	36 Good	51 Good	47 Good	51 Good	56 Good	40 Good	33 Good	45 Good
NO2	50 Moderate	48 Moderate	35 Good	39 Good	35 Good	37 Good	54 Moderate	53 Moderate
SO2	21 Good	21 Good	12 Good	19 Good	15 Good	12 Good	17 Good	19 Good
CO	390 Good	405 Good	322 Good	359 Good	350 Good	356 Good	627 Good	498 Good

data source »

Quality of life in South Korea

Green and Parks in the City

South Korea 61%

Japan: 65% Taiwan: 53% Hong Kong: 52%

Pleasure of spending time in the city

South Korea 43%

North Korea: 44% Japan: 69% Taiwan: 47% Hong Kong: 43%

Air Pollution

South Korea 69%

North Korea: 44% Japan: 33% Taiwan: 61% Hong Kong: 67%

Garbage Disposal

South Korea 62%

North Korea: 47% Japan: 71% Taiwan: 65% Hong Kong: 52%

Availability and quality of drinking water

South Korea 72%

North Korea: 47% Japan: 73% Taiwan: 54% Hong Kong: 66%

Cleanliness and tidiness

South Korea 63%

North Korea: 58% Japan: 74% Taiwan: 56% Hong Kong: 54%

Noise and Light pollution

South Korea 50%

North Korea: 33% Japan: 44% Taiwan: 59% Hong Kong: 66%

Water Pollution

South Korea 38%

North Korea: 56% Japan: 36% Taiwan: 58% Hong Kong: 53%

Source: Numbeo

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

Frequently asked questions

Is the air safe to breathe in South Korea today?

The current average PM2.5 across South Korea is about 17 µg/m³, rated “Moderate”. Air quality is acceptable, but unusually sensitive people should limit prolonged outdoor exertion.

What is the current PM2.5 level in South Korea?

Right now PM2.5 in South Korea averages about 17 µg/m³ (“Moderate”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which cities in South Korea have the best and worst air quality now?

Cheongju-si currently has the highest PM2.5 (36 µg/m³), while Jeju has the cleanest air (5 µg/m³).

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.

☀️ UV Index · 16-day Forecast — South Korea

The UV index in South Korea today is 7.4 (high) — unprotected fair skin can burn in about 25 minutes.

🌦️ Weather · 16-day Forecast — South Korea

16-day weather forecast for South Korea: today around 32°C (cloudy), lows near 21°C. Daily temperature and conditions, updated every day.