Olsztyn: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

Latest air quality data: Olsztyn

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

particulate matter (PM2.5) dust - 9 (Good)
particulate matter (PM10) suspended dust - 10 (Good)
ozone (O3) - 40 (Good)
nitrogen dioxide (NO2) - 5 (Good)
sulfur dioxide (SO2) - 1 (Good)
carbon monoxide (CO) - 259 (Good)

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

AQI 1 Good

What is the air quality in Olsztyn today? Is the air polluted in Olsztyn?. 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 Olsztyn.

What is the current level of PM2.5 in Olsztyn? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 9 (Good) For comparison, the highest level of PM2.5 in Olsztyn in the last 7 days was: 9 (Wednesday, August 26, 2026) and the lowest: 4 (Sunday, August 23, 2026). The highest PM2.5 values were recorded: 29 (January 2019). The lowest level of particulate matter PM2.5 pollution occurs in month: July (7.9).

What is the level of PM10 today in Olsztyn? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Olsztyn is: 10 (Good) The highest PM10 values usually occur in month: 43 (April 2019). The lowest value of particulate matter PM10 pollution in Olsztyn is usually recorded in: July (13).

How is the O3 level today in Olsztyn? (ozone (O3))
40 (Good)

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

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

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

Current data Thursday, August 27, 2026 at 3:00 AM

PM2,5 9 (Good)

PM10 10 (Good)

O3 40 (Good)

NO2 5 (Good)

SO2 1 (Good)

CO 259 (Good)

Data on air pollution from recent days in Olsztyn

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	8 Good	9 Good	8 Good	5 Good	4 Good	4 Good	7 Good	6 Good
pm10	9 Good	11 Good	10 Good	6 Good	6 Good	5 Good	9 Good	8 Good
o3	60 Good	55 Good	52 Good	53 Good	57 Good	69 Good	70 Moderate	62 Good
no2	4 Good	4 Good	5 Good	3 Good	2 Good	2 Good	4 Good	4 Good
so2	1 Good	1 Good	4 Good	1 Good	0 Good	1 Good	1 Good	1 Good
co	251 Good	252 Good	178 Good	154 Good	150 Good	148 Good	168 Good	171 Good

data source »

pollution pm25 hikersbay.com — Air pollution in Olsztyn from November 2018 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	2018-12	2018-11
bc	0.24 (Good)	0.5 (Good)	0.93 (Good)	0.14 (Good)	0.63 (Good)	0.33 (Good)	0.52 (Good)	0.78 (Good)	0.26 (Good)	0.8 (Good)	0.81 (Good)	0.34 (Good)	0.57 (Good)	0.62 (Good)	0.83 (Good)	1.4 (Good)	1.7 (Good)	1.6 (Good)	1.7 (Good)
co	307 (Good)	332 (Good)	489 (Good)	420 (Good)	374 (Good)	365 (Good)	349 (Good)	339 (Good)	275 (Good)	264 (Good)	184 (Good)	240 (Good)	321 (Good)	287 (Good)	318 (Good)	314 (Good)	472 (Good)	401 (Good)	523 (Good)
no2	7.5 (Good)	9.5 (Good)	16 (Good)	13 (Good)	15 (Good)	14 (Good)	15 (Good)	17 (Good)	12 (Good)	13 (Good)	6.3 (Good)	9.5 (Good)	8.7 (Good)	11 (Good)	12 (Good)	17 (Good)	18 (Good)	13 (Good)	18 (Good)
pm25	11 (Good)	9.8 (Good)	19 (Moderate)	14 (Moderate)	21 (Moderate)	18 (Moderate)	22 (Moderate)	19 (Moderate)	10 (Good)	11 (Good)	7.9 (Good)	11 (Good)	12 (Good)	21 (Moderate)	15 (Moderate)	25 (Moderate)	29 (Moderate)	25 (Moderate)	29 (Moderate)
o3	64 (Good)	71 (Moderate)	57 (Good)	51 (Good)	37 (Good)	35 (Good)	24 (Good)	32 (Good)	50 (Good)	58 (Good)	58 (Good)	75 (Moderate)	62 (Good)	77 (Moderate)	60 (Good)	45 (Good)	40 (Good)	29 (Good)	28 (Good)
pm10	13 (Good)	16 (Good)	23 (Moderate)	15 (Good)	21 (Moderate)	19 (Good)	22 (Moderate)	23 (Moderate)	16 (Good)	17 (Good)	13 (Good)	21 (Moderate)	18 (Good)	43 (Moderate)	19 (Good)	28 (Moderate)	31 (Moderate)	27 (Moderate)	33 (Moderate)
so2	8.1 (Good)	6.2 (Good)	6.1 (Good)	6 (Good)	5.1 (Good)	6.8 (Good)	7.7 (Good)	10 (Good)	5.8 (Good)	9.4 (Good)	6.6 (Good)	5.6 (Good)	9.6 (Good)	7.3 (Good)	3.9 (Good)	4.3 (Good)	8 (Good)	6.1 (Good)	5.1 (Good)

data source »

Quality of life in Olsztyn

Green and Parks in the City

Olsztyn 57%

Czech Republic: 77% Slovakia: 58% Lithuania: 86% Hungary: 59% Austria: 78%

particulate matter PM2.5

Olsztyn 15 (Moderate)

Pleasure of spending time in the city

Olsztyn 58%

Czech Republic: 77% Slovakia: 73% Lithuania: 83% Hungary: 65% Austria: 84%

particulate matter PM10

Olsztyn 24 (Moderate)

Air Pollution

Olsztyn 44%

Czech Republic: 35% Slovakia: 35% Lithuania: 26% Hungary: 49% Austria: 21%

Garbage Disposal

Olsztyn 61%

Czech Republic: 74% Slovakia: 65% Lithuania: 71% Hungary: 65% Austria: 84%

Availability and quality of drinking water

Olsztyn 63%

Czech Republic: 84% Slovakia: 87% Lithuania: 91% Hungary: 80% Austria: 91%

Cleanliness and tidiness

Olsztyn 55%

Czech Republic: 65% Slovakia: 57% Lithuania: 78% Hungary: 52% Austria: 82%

Noise and Light pollution

Olsztyn 41%

Czech Republic: 44% Slovakia: 41% Lithuania: 30% Hungary: 45% Austria: 34%

Water Pollution

Olsztyn 36%

Czech Republic: 28% Slovakia: 27% Lithuania: 24% Hungary: 30% Austria: 14%

Source: Numbeo

Olsztyn

Thursday, August 27, 2026 at 3:00 AM

PM2,5 8.7 (Good)

particulate matter (PM2.5) dust

PM10 10 (Good)

particulate matter (PM10) suspended dust

O3 40 (Good)

ozone (O3)

NO2 5 (Good)

nitrogen dioxide (NO2)

SO2 1.2 (Good)

sulfur dioxide (SO2)

CO 259 (Good)

carbon monoxide (CO)

Olsztyn

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	6	7.4	3.6	3.5	4.8	8.3	9.1	7.9
pm10	7.5	9.2	4.5	5.6	6.3	9.8	11	9.2
o3	62	70	69	57	53	52	55	60
no2	4.1	4	2.4	1.9	2.7	4.5	4.4	3.9
so2	0.77	1.3	0.56	0.44	0.73	4.4	1.3	1.4
co	171	168	148	150	154	178	252	251

WIOŚ Olsztyn ul. Puszkina

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	2018-12	2018-11
bc	0.24	0.5	0.93	0.14	0.63	0.33	0.52	0.78	0.26	0.8	0.81	0.34	0.57	0.62	0.83	1.4	1.7	1.6	1.7
co	307	332	489	420	374	365	349	339	275	264	184	240	321	287	318	314	472	401	523
o3	64	71	57	51	37	35	24	32	50	58	58	75	62	77	60	45	40	29	28
no2	7.5	9.5	16	13	15	14	15	17	12	13	6.3	9.5	8.7	11	12	17	18	13	18
pm10	13	16	23	15	21	19	22	23	16	17	13	21	18	43	19	28	31	27	33
pm25	11	9.8	19	14	21	18	22	19	10	11	7.9	11	12	21	15	25	29	25	29
so2	8.1	6.2	6.1	6	5.1	6.8	7.7	10	5.8	9.4	6.6	5.6	9.6	7.3	3.9	4.3	8	6.1	5.1

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

🌦️ Weather · 16-day Forecast — Poland

16-day weather forecast for Poland: today around 25°C (clear sky), lows near 10°C. Daily temperature and conditions, updated every day. A moderate breeze (about 16 km/h) is partially dispersing pollutants today.

☀️ UV Index · 16-day Forecast — Poland

The UV index in Poland today is 5.5 (moderate) — unprotected fair skin can burn in about 35 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Olsztyn — compare nearby locations.

Gdańsk 11 µg/m³
Toruń 10 µg/m³
Gdynia 8 µg/m³
Warsaw 13 µg/m³
Bydgoszcz 15 µg/m³
Białystok 11 µg/m³
Łódź 12 µg/m³
Krakow 10 µg/m³

Frequently asked questions

Is the air safe to breathe in Olsztyn today?

The current average PM2.5 across Olsztyn is about 9 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Olsztyn?

Right now PM2.5 in Olsztyn averages about 9 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 Olsztyn?

Over the past week, the highest daily PM2.5 in Olsztyn was recorded on Wednesday, August 26 (about 9 µg/m³).

What is the UV index in Olsztyn today?

The UV index in Olsztyn today is 5.5 (moderate) — unprotected fair skin can burn in about 35 minutes.

Does today's wind help disperse smog in Olsztyn?

A moderate breeze (about 16 km/h) is partially dispersing pollutants today.

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.