SmogRank / Romania / Ilfov / Jilava
Jilava, month by month
Jilava has a measured daily mean on 987 days since 1 January 2023. Its worst month was January 2025, at 95 US AQI (32.5 µg/m³), 77th of 2,474 cities on that month's world ranking. Its cleanest was May 2025, at 38 US AQI (6.8 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
17 months
| Month | Why |
|---|---|
| Nov 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. |
| Feb 2025 | 15 of 28 days measured; a month needs 20. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Dec 2024 | 16 of 31 days measured; a month needs 22. The others: 15 with under 18 hours of readings or readings that failed our checks. |
| Oct 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. |
| Sep 2024 | No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks. |
| Aug 2024 | 3 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks. |
| Jul 2024 | 18 of 31 days measured; a month needs 22. The others: 13 with under 18 hours of readings or readings that failed our checks. |
| Jun 2024 | 12 of 30 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks. |
| May 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. |
| Apr 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. |
| Mar 2024 | 8 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks. |
| Sep 2023 | 11 of 30 days measured; a month needs 21. The others: 19 with under 18 hours of readings or readings that failed our checks. |
| Aug 2023 | 19 of 31 days measured; a month needs 22. The others: 12 with under 18 hours of readings or readings that failed our checks. |
| Jun 2023 | 16 of 30 days measured; a month needs 21. The others: 14 with under 18 hours of readings or readings that failed our checks. |
| Mar 2023 | 11 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive. |
| Feb 2023 | 3 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive. |
| Jan 2023 | 21 of 31 days measured; a month needs 22. The others: 7 missing from OpenAQ's archive, 3 with under 18 hours of readings or readings that failed our checks. |
A day counts once 18 hours of it are measured; a month needs 70% of its days.
Jilava's worst months
| Month | US AQI | World rank | Episode |
|---|---|---|---|
| January 2025 | 9532.5 µg/m³ | 77thof 2,474 | Romania, Bulgaria and Serbia, January 2025 Germany, France and 19 more countries, January 2025and 1 more |
| January 2026 | 8527.1 µg/m³ | 208thof 2,617 | Europe, January and February 2026 |
| February 2026 | 7622.4 µg/m³ | 465thof 2,866 | Europe, January and February 2026 Romania, February 2026 |
| March 2025 | 7321.1 µg/m³ | 523rdof 2,862 | Germany, Poland and 25 more countries, March 2025 Romania, Hungary and Serbia, March 2025and 1 more |
| March 2026 | 6918.7 µg/m³ | 645thof 2,971 | Romania and Bulgaria, March 2026 Europe, 1 to 12 March 2026 |
| January 2024 | 6918.5 µg/m³ | 314thof 2,385 | South-eastern Europe, 28 December 2023 to 1 January 2024 |
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.
Jilava's worst days
| Day | US AQI | Episode |
|---|---|---|
| 24 Jan 2025 | 17285.7 µg/m³ | Germany, France and 19 more countries, January 2025 |
| 28 Jan 2025 | 16575.8 µg/m³ | – |
| 28 Jul 2024 | 16474.3 µg/m³ | – |
| 25 Jan 2025 | 16068.4 µg/m³ | – |
| 29 Jan 2025 | 16068.4 µg/m³ | Romania, Bulgaria and Serbia, January 2025 |
| 24 Feb 2025 | 15966.9 µg/m³ | Europe, 14 February to 1 March 2025 |
| 27 Jul 2024 | 15966.8 µg/m³ | – |
| 1 Jan 2024 | 15764.6 µg/m³ | South-eastern Europe, 28 December 2023 to 1 January 2024 |
| 10 Jan 2025 | 15763.5 µg/m³ | – |
| 21 Feb 2025 | 15763.5 µg/m³ | Europe, 14 February to 1 March 2025 |
Daily means, the highest since 1 Jan 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, Jilava, Romania, 1 Jan 2023 – 10 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/ro/jilava/history (accessed 12 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.
Jilava now: the last 24 hours, its ranks today and the last 12 months day by day.
Updated 2026-10-12 19:07 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).