SmogRank / Romania / Ilfov / Baloteşti

Baloteşti, month by month

Baloteşti has a measured daily mean on 962 days since 1 January 2023. Its worst month was February 2024, at 94 US AQI (32.1 µg/m³), 92nd of 2,486 cities on that month's world ranking. Its cleanest was September 2026, at 34 US AQI (6.1 µg/m³). 2025 averaged 53 US AQI (10.0 µg/m³), against 56 US AQI (12.0 µg/m³) in 2023.

Every month since 2023

2026too few days for a mean (a year needs 199)191 days measured
Jan71#442Feb66#665Mar62#838Apr17 daysMay21 daysJun14 daysJul15 daysAug21 daysSep34#1,709Oct6 days
202553 for the year263 days measured967th of 2,681 in the world
Jan80#168Feb12 daysMar11 daysApr18 daysMay36#1,795Jun20 daysJul41#1,940Aug38#2,249Sep37#1,841Oct50#675Nov14 daysDec60#802
2024too few days for a mean (a year needs 257)241 days measured
Jan19 daysFeb94#92Mar12 daysApr49#1,195May43#1,433Jun42#1,475Jul50#1,014Aug14 daysSepnoneOct15 daysNov70#247Dec60#528
202356 for the year267 days measured217th of 1,355 in the world
Each square is a month's mean PM2.5 in US AQI from Baloteşti's measured days, with its place on that month's world ranking under it. A month has a mean once 70% of its days are measured, the rule the monthly rankings use; under that, the square gives the days measured. Each square opens that month's ranking with Baloteşti marked; each year, the year's.
Good0–50
Moderate51–100
Sensitive groups101–150
Unhealthy151–200
Very unhealthy201–300
Hazardous301+

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

20 months
MonthWhy
Oct 20266 of 11 days measured; a month needs 8. The others: 1 with no readings from the monitors, 4 with readings for part of the day (a day needs 18 hours).
Aug 202621 of 31 days measured; a month needs 22. The others: 10 with readings for part of the day (a day needs 18 hours).
Jul 202615 of 31 days measured; a month needs 22. The others: 16 with readings for part of the day (a day needs 18 hours).
Jun 202614 of 30 days measured; a month needs 21. The others: 16 with readings for part of the day (a day needs 18 hours).
May 202621 of 31 days measured; a month needs 22. The others: 10 with readings for part of the day (a day needs 18 hours).
Apr 202617 of 30 days measured; a month needs 21. The others: 13 with readings for part of the day (a day needs 18 hours).
Nov 202514 of 30 days measured; a month needs 21. The others: 2 with no readings from the monitors, 14 with readings for part of the day (a day needs 18 hours).
Jun 202520 of 30 days measured; a month needs 21. The others: 10 with readings for part of the day (a day needs 18 hours).
Apr 202518 of 30 days measured; a month needs 21. The others: 3 with no readings from the monitors, 9 with readings for part of the day (a day needs 18 hours).
Mar 202511 of 31 days measured; a month needs 22. The others: 20 with readings for part of the day (a day needs 18 hours).
Feb 202512 of 28 days measured; a month needs 20. The others: 14 with readings for part of the day (a day needs 18 hours), 2 with readings left out by our checks.
Oct 202415 of 31 days measured; a month needs 22. The others: 16 with readings for part of the day (a day needs 18 hours).
Sep 2024No day measured. The others: 30 with readings for part of the day (a day needs 18 hours).
Aug 202414 of 31 days measured; a month needs 22. The others: 5 with no readings from the monitors, 12 with readings for part of the day (a day needs 18 hours).
Mar 202412 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitors, 9 with readings for part of the day (a day needs 18 hours).
Jan 202419 of 31 days measured; a month needs 22. The others: 10 with no readings from the monitors, 2 with readings for part of the day (a day needs 18 hours).
Jun 202316 of 30 days measured; a month needs 21. The others: 13 with no readings from the monitors, 1 with readings for part of the day (a day needs 18 hours).
Mar 202311 of 31 days measured; a month needs 22. The others: 20 missing from OpenAQ's archive.
Feb 20233 of 28 days measured; a month needs 20. The others: 25 missing from OpenAQ's archive.
Jan 202319 of 31 days measured; a month needs 22. The others: 5 with readings for part of the day (a day needs 18 hours), 7 missing from OpenAQ's archive.

A day counts once 18 hours of it are measured; a month needs 70% of its days.

Baloteşti's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2024 9432.1 µg/m³28 of 2992ndof 2,486Europe, 27 January to 2 February 2024
January 2025 8024.9 µg/m³26 of 31168thof 2,474Germany, France and 19 more countries, January 2025
December 2023 7722.8 µg/m³28 of 31115thof 2,247South-eastern Europe, 28 December 2023 to 1 January 2024
Eastern Europe, December 2023
January 2026 7119.7 µg/m³24 of 31442ndof 2,617Europe, January and February 2026
November 2024 7019.1 µg/m³27 of 30247thof 2,624Eastern Europe, 25 to 29 November 2024
Southern Europe, November 2024and 1 more
February 2026 6617.4 µg/m³24 of 28665thof 2,866Europe, January and February 2026

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.

Baloteşti's worst days

DayUS AQIEpisode
11 Feb 2024 221146.0 µg/m³–
12 Feb 2024 183101.0 µg/m³–
10 Feb 2024 17691.0 µg/m³–
9 Feb 2024 15662.0 µg/m³–
20 Dec 2023 13951.0 µg/m³Eastern Europe, December 2023
1 Jan 2023 13850.7 µg/m³Eastern Europe, January 2023
30 Dec 2023 13549.4 µg/m³South-eastern Europe, 28 December 2023 to 1 January 2024
21 Jan 2025 13147.7 µg/m³Germany, France and 19 more countries, January 2025
27 Jan 2024 12846.6 µg/m³Europe, 27 January to 2 February 2024
Europe, 8 to 27 January 2024
15 Jan 2026 12645.6 µg/m³Europe, January and February 2026

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, Baloteşti, 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/balotesti/history (accessed 12 Oct 2026).

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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.

Baloteşti now: the last 24 hours, its ranks today and the last 12 months day by day.

Updated 2026-10-12 20:07 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).