SmogRank / Hungary / Pest County / Gyál
Gyál, month by month
Gyál has a measured daily mean on 868 days since 30 March 2023. Its worst month was January 2026, at 86 US AQI (28.1 µg/m³), 196th of 2,617 cities on that month's world ranking. Its cleanest was May 2024, at 25 US AQI (4.5 µg/m³).
Every month since 2023
The US EPA's Air Quality Index for PM2.5 (2024 breakpoints). Show values as: µg/m³ · US AQI · India AQI · China AQI · European AQI · UK DAQI · Canada AQHI+. About the scales
Months without a mean, and why
19 months
| Month | Why |
|---|---|
| Aug 2026 | 12 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks. |
| Jun 2026 | 16 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Oct 2025 | 20 of 31 days measured; a month needs 22. The others: 11 with under 18 hours of readings or readings that failed our checks. |
| Jun 2025 | 17 of 30 days measured; a month needs 21. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Apr 2025 | 13 of 30 days measured; a month needs 21. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Mar 2025 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Jan 2025 | 13 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks. |
| Dec 2024 | 7 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks. |
| Nov 2024 | 10 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks. |
| Oct 2024 | 6 of 31 days measured; a month needs 22. The others: 25 with under 18 hours of readings or readings that failed our checks. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Mar 2024 | 14 of 31 days measured; a month needs 22. The others: 17 with under 18 hours of readings or readings that failed our checks. |
| Jan 2024 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Dec 2023 | 2 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks. |
| Nov 2023 | 18 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Sep 2023 | 8 of 30 days measured; a month needs 21. The others: 22 with under 18 hours of readings or readings that failed our checks. |
| Aug 2023 | No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 2 of 31 days measured; a month needs 22. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Gyál's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2026 | 8628.1 µg/m³ | 196thof 2,617 | Europe, January and February 2026 Eastern Europe, January 2026 |
| February 2025 | 8627.7 µg/m³ | 241stof 2,633 | Europe, 14 February to 1 March 2025 Europe, 1 to 14 February 2025 |
| February 2026 | 7320.9 µg/m³ | 521stof 2,866 | Europe, January and February 2026 |
| March 2026 | 7220.6 µg/m³ | 580thof 2,971 | Europe, 1 to 12 March 2026 |
| December 2025 | 6617.2 µg/m³ | 633rdof 3,006 | Eastern Europe, 16 to 21 December 2025 |
| November 2025 | 6215.0 µg/m³ | 590thof 2,715 | Europe, 8 to 10 November 2025 |
Monthly means over the days measured; finished months only. World rank: its place on that month's world ranking of every city with enough days. Each month opens that ranking.
Gyál's worst days
| Day | US AQI | Episode |
|---|---|---|
| 8 Feb 2026 | 206131.0 µg/m³ | Europe, January and February 2026 |
| 7 Oct 2026 | 15662.4 µg/m³ | Europe, October 2026 |
| 9 Dec 2025 | 15156.2 µg/m³ | – |
| 10 Jan 2026 | 14653.9 µg/m³ | Eastern Europe, January 2026 |
| 9 Aug 2024 | 14051.3 µg/m³ | – |
| 15 Jan 2026 | 13147.7 µg/m³ | Europe, January and February 2026 |
| 20 Oct 2024 | 12946.9 µg/m³ | Eastern Europe, October and November 2024 |
| 22 Jan 2026 | 12946.7 µg/m³ | Europe, January and February 2026 |
| 11 Feb 2025 | 12746.2 µg/m³ | Europe, 1 to 14 February 2025 |
| 16 Jan 2026 | 12746.2 µg/m³ | Europe, January and February 2026 |
Daily means, the highest since 30 Mar 2023; the WHO's daily guideline is 15 µg/m³. Each date opens that day's world ranking, and each episode the bad-air spell it was part of.
Use this history
SmogRank, PM2.5 monthly and daily means, Gyál, Hungary, 30 Mar 2023 – 12 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/hu/gyal/history (accessed 13 Oct 2026).
You're welcome to reuse a single chart, image or figure with this citation and a link. Terms. Raw monitor readings in bulk are published by OpenAQ, under each provider's licence.
Gyál now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-13 04:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index. Some low-cost readings: Sensor.Community, ODbL (data and licence). Some readings: Uzhydromet (Uzbekistan's Hydrometeorological Service); Department of Environment, Nepal; Vietnam's government monitors; Aurassure; Umhverfisstofnun (Environment Agency of Iceland); RMCAB (Secretaría Distrital de Ambiente, Bogotá); Love My Air (City and County of Denver), no reuse terms published (why we use them).