Updated: 2025-05-21 00:25 CEST

---

Basic data
Locality:	Zilina, Obezna
Code:	8ZIOA
Type of measuring programme:	Automated measuring program
Locality owner:	Slovak Hydrometeorological Institute
Classification
Abbreviation:	B/U/-
Localization
Coordinates:	49° 12´ 39.993" North latitude 18° 46´ 15.998" East longitude
Altitude:	356 m

---

Actual measured level of air pollution

Actual unverified data

Date and time	Air quality	SO₂	NO₂	PM₁₀	O₃		PM₂.₅
		3h average	3h average	3h average	3h average		3h average
		µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³		µg∙m⁻³
2025-05-19 22:00 - 01:00 CEST			15.7	15.0
2025-05-19 23:00 - 02:00 CEST			12.0	13.0
2025-05-20 00:00 - 03:00 CEST			9.3	10.3
2025-05-20 01:00 - 04:00 CEST			9.0	9.3
2025-05-20 02:00 - 05:00 CEST			7.3	9.7
2025-05-20 03:00 - 06:00 CEST			7.3	7.7
2025-05-20 04:00 - 07:00 CEST			10.3	7.0
2025-05-20 05:00 - 08:00 CEST			15.7	7.3
2025-05-20 06:00 - 09:00 CEST			18.0	8.7
2025-05-20 07:00 - 10:00 CEST			18.3	8.0
2025-05-20 08:00 - 11:00 CEST			17.7	7.3
2025-05-20 09:00 - 12:00 CEST			15.7	6.7
2025-05-20 10:00 - 13:00 CEST			14.3	6.0
2025-05-20 11:00 - 14:00 CEST			12.0	5.3
2025-05-20 12:00 - 15:00 CEST			12.4	5.3
2025-05-20 13:00 - 16:00 CEST			10.3	6.7
2025-05-20 14:00 - 17:00 CEST			12.1	7.7
2025-05-20 15:00 - 18:00 CEST			11.3	8.0
2025-05-20 16:00 - 19:00 CEST			11.7	8.7
2025-05-20 17:00 - 20:00 CEST			10.0	9.7
2025-05-20 18:00 - 21:00 CEST			24.0	11.0
2025-05-20 19:00 - 22:00 CEST			31.7	13.3
2025-05-20 20:00 - 23:00 CEST			36.7	16.3
2025-05-20 21:00 - 00:00 CEST			25.0	19.3

---

Legend

Level	Index range	Air quality
1A	≥ 0.00 and < 0.34	very good to good
1B	≥ 0.34 and < 0.67
2A	≥ 0.67 and < 1.00	acceptable
2B	≥ 1.00 and < 1.50
3A	≥ 1.50 and < 2.00	aggravated to bad
3B	≥ 2.00
	Component is not measured, index not determined
	Incomplete data

---

---

Map of station position

Map is on page with detailed information about locality