Smog in Keelung — Live Data: AQI, Fine Dust, Wind, UV and Health Advice

Latest air quality data: Keelung

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Pollution and air quality forecast for Keelung. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Keelung:

particulate matter (PM2.5) dust - 11 (Good)
particulate matter (PM10) suspended dust - 12 (Good)
ozone (O3) - 62 (Good)
nitrogen dioxide (NO2) - 27 (Good)
sulfur dioxide (SO2) - 28 (Good)
carbon monoxide (CO) - 325 (Good)

Real-time Air Quality Index (AQI) for Keelung, Thursday, August 27, 2026: 1.

AQI 1 Good

What is the air quality in Keelung today? Is the air polluted in Keelung?. Is there smog?

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Keelung.

What is the current level of PM2.5 in Keelung? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 11 (Good) For comparison, the highest level of PM2.5 in Keelung in the last 7 days was: 22 (Friday, August 21, 2026) and the lowest: 8 (Monday, August 24, 2026). The highest PM2.5 values were recorded: 21 (April 2017). The lowest level of particulate matter PM2.5 pollution occurs in month: September (7.6).

What is the level of PM10 today in Keelung? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Keelung is: 12 (Good) The highest PM10 values usually occur in month: 36 (March 2019). The lowest value of particulate matter PM10 pollution in Keelung is usually recorded in: November (20).

How is the O3 level today in Keelung? (ozone (O3))
62 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
27 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
28 (Good)

How high is the CO level? (carbon monoxide (CO))
325 (Good)

Current data Thursday, August 27, 2026 at 9:00 AM

PM2,5 11 (Good)

PM10 12 (Good)

O3 62 (Good)

NO2 27 (Good)

SO2 28 (Good)

CO 325 (Good)

Data on air pollution from recent days in Keelung

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
pm25	17 Moderate	20 Moderate	20 Moderate	8 Good	12 Good	20 Moderate	22 Moderate	21 Moderate
pm10	19 Good	22 Moderate	22 Moderate	9 Good	14 Good	21 Moderate	24 Moderate	23 Moderate
o3	59 Good	45 Good	39 Good	47 Good	62 Good	43 Good	43 Good	50 Good
no2	42 Moderate	41 Moderate	37 Good	20 Good	24 Good	44 Moderate	45 Moderate	33 Good
so2	34 Good	45 Good	22 Good	8 Good	16 Good	36 Good	42 Good	30 Good
co	352 Good	724 Good	728 Good	153 Good	264 Good	568 Good	606 Good	527 Good

data source »

pollution pm25 hikersbay.com — Air pollution in Keelung from December 2016 to May 2020

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12
pm25	14 (Moderate)	15 (Moderate)	15 (Moderate)	15 (Moderate)	15 (Moderate)	11 (Good)	13 (Good)	16 (Moderate)	7.6 (Good)	9.2 (Good)	9.5 (Good)	10 (Good)	13 (Good)	15 (Moderate)	16 (Moderate)	12 (Good)	13 (Moderate)	19 (Moderate)	12 (Good)	15 (Moderate)	11 (Good)	14 (Moderate)	18 (Moderate)	15 (Moderate)	15 (Moderate)	21 (Moderate)	19 (Moderate)	18 (Moderate)	16 (Moderate)	15 (Moderate)
pm10	25 (Moderate)	29 (Moderate)	30 (Moderate)	28 (Moderate)	28 (Moderate)	26 (Moderate)	34 (Moderate)	36 (Moderate)	26 (Moderate)	22 (Moderate)	22 (Moderate)	20 (Moderate)	31 (Moderate)	32 (Moderate)	36 (Moderate)	30 (Moderate)	32 (Moderate)	36 (Moderate)	22 (Moderate)	27 (Moderate)	20 (Moderate)	27 (Moderate)	26 (Moderate)	22 (Moderate)	24 (Moderate)	31 (Moderate)	30 (Moderate)	29 (Moderate)	25 (Moderate)	26 (Moderate)
o3:ppm	0.03 (Good)	0.04 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.04 (Good)	0.03 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.03 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.04 (Good)	0.04 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)
so2:ppm	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)
co:ppm	0.31 (Good)	0.36 (Good)	0.36 (Good)	0.36 (Good)	0.42 (Good)	0.31 (Good)	0.35 (Good)	0.41 (Good)	0.26 (Good)	0.2 (Good)	0.22 (Good)	0.29 (Good)	0.27 (Good)	0.39 (Good)	0.38 (Good)	0.39 (Good)	0.42 (Good)	0.44 (Good)	0.33 (Good)	0.32 (Good)	0.29 (Good)	0.2 (Good)	0.29 (Good)	0.3 (Good)	0.3 (Good)	0.43 (Good)	0.42 (Good)	0.37 (Good)	0.36 (Good)	0.34 (Good)
no2:ppm	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)

data source »

Quality of life in Keelung

Green and Parks in the City

Keelung 38%

Hong Kong: 52% Mexico: 56% Philippines: 45% South Korea: 61%

particulate matter PM2.5

Keelung 20 (Moderate)

Pleasure of spending time in the city

Keelung 46%

Hong Kong: 43% Mexico: 57% Philippines: 39% South Korea: 43%

particulate matter PM10

Keelung 30 (Moderate)

Air Pollution

Keelung 53%

Hong Kong: 67% Mexico: 53% Philippines: 64% South Korea: 69%

Garbage Disposal

Keelung 75%

Hong Kong: 52% Mexico: 52% Philippines: 35% South Korea: 62%

Availability and quality of drinking water

Keelung 44%

Hong Kong: 66% Mexico: 57% Philippines: 54% South Korea: 72%

Cleanliness and tidiness

Keelung 50%

Hong Kong: 54% Mexico: 45% Philippines: 38% South Korea: 63%

Noise and Light pollution

Keelung 44%

Hong Kong: 66% Mexico: 48% Philippines: 60%

Water Pollution

Keelung 75%

Hong Kong: 53% Mexico: 55% Philippines: 74% South Korea: 38%

Source: Numbeo

Keelung

Thursday, August 27, 2026 at 9:00 AM

PM2,5 11 (Good)

particulate matter (PM2.5) dust

PM10 12 (Good)

particulate matter (PM10) suspended dust

O3 62 (Good)

ozone (O3)

NO2 27 (Good)

nitrogen dioxide (NO2)

SO2 28 (Good)

sulfur dioxide (SO2)

CO 325 (Good)

carbon monoxide (CO)

Keelung

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	21	22	20	12	7.5	20	20	17
pm10	23	24	21	14	8.8	22	22	19
o3	50	43	43	62	47	39	45	59
no2	33	45	44	24	20	37	41	42
so2	30	42	36	16	8.2	22	45	34
co	527	606	568	264	153	728	724	352

Keelung

index	2020-05	2020-04	2020-03	2020-02	2020-01	2019-12	2019-11	2019-10	2019-09	2019-08	2019-07	2019-06	2019-05	2019-04	2019-03	2019-02	2019-01	2018-02	2018-01	2017-12	2017-11	2017-10	2017-09	2017-06	2017-05	2017-04	2017-03	2017-02	2017-01	2016-12
pm25	14	15	15	15	15	11	13	16	7.6	9.2	9.5	10	13	15	16	12	13	19	12	15	11	14	18	15	15	21	19	18	16	15
no2:ppm	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.02	0.01	0.01	0.01
co:ppm	0.31	0.36	0.36	0.36	0.42	0.31	0.35	0.41	0.26	0.2	0.22	0.29	0.27	0.39	0.38	0.39	0.42	0.44	0.33	0.32	0.29	0.2	0.29	0.3	0.3	0.43	0.42	0.37	0.36	0.34
pm10	25	29	30	28	28	26	34	36	26	22	22	20	31	32	36	30	32	36	22	27	20	27	26	22	24	31	30	29	25	26
so2:ppm	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
o3:ppm	0.03	0.04	0.04	0.04	0.03	0.03	0.04	0.04	0.03	0.02	0.02	0.02	0.04	0.03	0.04	0.03	0.03	0.03	0.03	0.04	0.03	0.04	0.03	0.03	0.04	0.04	0.04	0.04	0.03	0.03

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

🌦️ Weather · 16-day Forecast — Keelung

16-day weather forecast for Keelung: today around 30°C (rain), lows near 26°C. Daily temperature and conditions, updated every day. Strong wind (about 25 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Keelung

The UV index in Keelung today is 8.3 (very high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Keelung — compare nearby locations.

Taipei 11 µg/m³
Hsinchu 7 µg/m³
Kaohsiung City 12 µg/m³
Taichung City 11 µg/m³
Tainan 12 µg/m³
Taoyuan 8 µg/m³
Hualian 8 µg/m³
Taitung City 5 µg/m³

Frequently asked questions

Is the air safe to breathe in Keelung today?

The current average PM2.5 across Keelung is about 11 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Keelung?

Right now PM2.5 in Keelung averages about 11 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Keelung?

Over the past week, the highest daily PM2.5 in Keelung was recorded on Friday, August 21 (about 22 µg/m³).

What is the UV index in Keelung today?

The UV index in Keelung today is 8.3 (very high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Keelung?

Strong wind (about 25 km/h) is actively clearing smog and dust away.

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.