Updated: 2025-08-02 11:25 CEST

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Basic data
Locality:	Irnfritz
Code:	2IRNA
Type of measuring programme:	Automated measuring program
Locality owner:	Amt der NÖ Landesregierung Abteilung BD4
Classification
Abbreviation:	B/R/A
Localization
Coordinates:	48° 43´ 25.998" North latitude 15° 29´ 54.201" East longitude
Altitude:	556 m

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Actual measured level of air pollution

Actual unverified data

Date and time	Air quality	SO₂	NO₂	PM₁₀	O₃
		3h average	3h average	3h average	3h average
		µg∙m⁻³	µg∙m⁻³	µg∙m⁻³	µg∙m⁻³
2025-08-01 09:00 - 12:00 CEST	1B	1.8			65.2
2025-08-01 10:00 - 13:00 CEST	1B	2.0			69.2
2025-08-01 11:00 - 14:00 CEST	1B	2.0			67.2
2025-08-01 12:00 - 15:00 CEST	1B	1.8			67.0
2025-08-01 13:00 - 16:00 CEST	1B	1.8			68.0
2025-08-01 14:00 - 17:00 CEST	2A	1.7			73.7
2025-08-01 15:00 - 18:00 CEST	2A	1.7			76.7
2025-08-01 16:00 - 19:00 CEST	2A	1.7			78.0
2025-08-01 17:00 - 20:00 CEST	2A	1.8			76.5
2025-08-01 18:00 - 21:00 CEST	2A	2.0			74.2
2025-08-01 19:00 - 22:00 CEST	1B	1.7			70.3
2025-08-01 20:00 - 23:00 CEST	1B	1.3			69.3
2025-08-01 21:00 - 00:00 CEST	1B	1.0			68.6
2025-08-01 22:00 - 01:00 CEST	1B	1.0			70.1
2025-08-01 23:00 - 02:00 CEST	1B	1.0			68.9
2025-08-02 00:00 - 03:00 CEST	1B	1.0			64.7
2025-08-02 01:00 - 04:00 CEST	1B	1.0			60.3
2025-08-02 02:00 - 05:00 CEST	1B	1.0			55.5
2025-08-02 03:00 - 06:00 CEST	1B	1.0			57.3
2025-08-02 04:00 - 07:00 CEST	1B	1.0			53.7
2025-08-02 05:00 - 08:00 CEST	1B	1.0			54.5
2025-08-02 06:00 - 09:00 CEST	1B	1.0			55.0
2025-08-02 07:00 - 10:00 CEST	1B	1.0			62.8
2025-08-02 08:00 - 11:00 CEST	1B	1.2			69.3

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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

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Map of station position

Map is on page with detailed information about locality