SmogRank / Spain / Balearic Islands / Ciutadella

Ciutadella, month by month

Ciutadella has a measured daily mean on 261 days since 30 December 2023. Its worst month was January 2025, at 53 US AQI (10.0 µg/m³), 999th of 2,474 cities on that month's world ranking. Its cleanest was May 2024, at 38 US AQI (6.9 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)1 day measured
JannoneFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSep1 dayOctnone
2025too few days for a mean (a year needs 256)67 days measured
Jan53#999Feb4 daysMar4 daysApr6 daysMay10 daysJun4 daysJul1 dayAug13 daysSepnoneOctnoneNovnoneDecnone
2024too few days for a mean (a year needs 257)191 days measured
Jan49#1,053Feb11 daysMar3 daysApr46#1,281May38#1,737Jun45#1,279Jul12 daysAug7 daysSepnoneOct8 daysNov14 daysDec42#1,505
2023too few days for a mean (a year needs 256)2 days measured
JanFebMarAprMayJunJulAugSepOctNovDec2 days
Each square is a month's mean PM2.5 in US AQI from Ciutadella'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 Ciutadella 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

29 months
MonthWhy
Oct 2026No day measured. The others: 4 with no readings from the monitors, 7 with readings for part of the day (a day needs 18 hours).
Sep 20261 of 30 days measured; a month needs 21. The others: 29 with readings for part of the day (a day needs 18 hours).
Aug 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 2026No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2026No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 202513 of 31 days measured; a month needs 22. The others: 18 with under 18 hours of readings or readings that failed our checks.
Jul 20251 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 20254 of 30 days measured; a month needs 21. The others: 26 with under 18 hours of readings or readings that failed our checks.
May 202510 of 31 days measured; a month needs 22. The others: 21 with under 18 hours of readings or readings that failed our checks.
Apr 20256 of 30 days measured; a month needs 21. The others: 24 with under 18 hours of readings or readings that failed our checks.
Mar 20254 of 31 days measured; a month needs 22. The others: 27 with under 18 hours of readings or readings that failed our checks.
Feb 20254 of 28 days measured; a month needs 20. The others: 24 with under 18 hours of readings or readings that failed our checks.
Nov 202414 of 30 days measured; a month needs 21. The others: 16 with under 18 hours of readings or readings that failed our checks.
Oct 20248 of 31 days measured; a month needs 22. The others: 23 with under 18 hours of readings or readings that failed our checks.
Sep 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 20247 of 31 days measured; a month needs 22. The others: 24 with under 18 hours of readings or readings that failed our checks.
Jul 202412 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Mar 20243 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Feb 202411 of 29 days measured; a month needs 21. The others: 18 with under 18 hours of readings or readings that failed our checks.
Dec 20232 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.

Ciutadella's worst months

MonthUS AQIDays measuredWorld rankEpisode
January 2025 5310.0 µg/m³25 of 31999thof 2,474–
January 2024 498.8 µg/m³31 of 311,053rdof 2,385Spain, France and 2 more countries, December 2023 to January 2024
April 2024 468.2 µg/m³23 of 301,281stof 2,520–
June 2024 458.1 µg/m³29 of 301,279thof 2,563–
December 2024 427.6 µg/m³25 of 311,505thof 2,616–
May 2024 386.9 µg/m³28 of 311,737thof 2,684–

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.

Ciutadella's worst days

DayUS AQIEpisode
9 Feb 2024 8828.8 µg/m³–
30 Dec 2023 8426.9 µg/m³Spain, France and 2 more countries, December 2023 to January 2024
30 Oct 2024 8125.1 µg/m³–
3 Nov 2024 7622.4 µg/m³–
7 Feb 2024 7421.2 µg/m³–
26 Jun 2025 7119.9 µg/m³–
26 Nov 2024 7019.5 µg/m³–
17 Oct 2024 7019.3 µg/m³–
27 Aug 2025 6918.7 µg/m³–
19 Dec 2024 6918.5 µg/m³–

Daily means, the highest since 30 Dec 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, Ciutadella, Spain, 30 Dec 2023 – 24 Sep 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/es/ciutadella/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.

Ciutadella 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).