SmogRank / Sweden / Kalmar / Kalmar

Kalmar, month by month

Kalmar has a measured daily mean on 536 days since 11 January 2023. Its worst month was March 2026, at 65 US AQI (16.6 µg/m³), 728th of 2,971 cities on that month's world ranking. Its cleanest was May 2026, at 24 US AQI (4.4 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 200)92 days measured
Jan1 dayFeb4 daysMar65#728Apr34#2,167May24#2,540Jun10 daysJul1 dayAugnoneSep2 daysOct1 day
2025too few days for a mean (a year needs 256)188 days measured
Jan29#2,175Feb60#933Mar56#1,242Apr44#1,762May25#2,464Jun18 daysJul1 dayAug18 daysSep32#2,193Oct12 daysNov2 daysDec2 days
2024too few days for a mean (a year needs 257)205 days measured
Jan3 daysFeb43#1,168Mar15 daysApr33#1,678May44#1,356Jun34#1,967Jul28#2,263Aug15 daysSepnoneOct5 daysNov14 daysDec21 days
2023too few days for a mean (a year needs 256)51 days measured
Jan7 daysFeb41#881Mar15 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Kalmar'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 Kalmar 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

31 months
MonthWhy
Oct 20261 of 12 days measured; a month needs 9. The others: 1 with no readings from the monitors, 10 with readings for part of the day (a day needs 18 hours).
Sep 20262 of 30 days measured; a month needs 21. The others: 1 with no readings from the monitors, 27 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 20261 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 202610 of 30 days measured; a month needs 21. The others: 20 with under 18 hours of readings or readings that failed our checks.
Feb 20264 of 28 days measured; a month needs 20. The others: 24 with under 18 hours of readings or readings that failed our checks.
Jan 20261 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Dec 20252 of 31 days measured; a month needs 22. The others: 29 with under 18 hours of readings or readings that failed our checks.
Nov 20252 of 30 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Oct 202512 of 31 days measured; a month needs 22. The others: 19 with under 18 hours of readings or readings that failed our checks.
Aug 202518 of 31 days measured; a month needs 22. The others: 13 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 202518 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks.
Dec 202421 of 31 days measured; a month needs 22. The others: 10 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 20245 of 31 days measured; a month needs 22. The others: 26 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 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Mar 202415 of 31 days measured; a month needs 22. The others: 16 with under 18 hours of readings or readings that failed our checks.
Jan 20243 of 31 days measured; a month needs 22. The others: 28 with under 18 hours of readings or readings that failed our checks.
Dec 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Sep 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Aug 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 20231 of 31 days measured; a month needs 22. The others: 30 with under 18 hours of readings or readings that failed our checks.
Jun 2023No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2023No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 20233 of 30 days measured; a month needs 21. The others: 27 with under 18 hours of readings or readings that failed our checks.
Mar 202315 of 31 days measured; a month needs 22. The others: 5 missing from OpenAQ's archive, 11 with under 18 hours of readings or readings that failed our checks.
Jan 20237 of 31 days measured; a month needs 22. The others: 14 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.

Kalmar's worst months

MonthUS AQIDays measuredWorld rankEpisode
March 2026 6516.6 µg/m³26 of 31728thof 2,971Europe, 1 to 12 March 2026
February 2025 6013.7 µg/m³21 of 28933rdof 2,633Europe, 14 February to 1 March 2025
March 2025 5612.0 µg/m³25 of 311,242ndof 2,862Germany, Poland and 25 more countries, March 2025
Europe, 14 February to 1 March 2025
April 2025 448.0 µg/m³21 of 301,762ndof 2,951–
May 2024 447.9 µg/m³28 of 311,356thof 2,684–
February 2024 437.8 µg/m³29 of 291,168thof 2,486Europe, February and March 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.

Kalmar's worst days

DayUS AQIEpisode
10 Mar 2026 14252.3 µg/m³Europe, 1 to 12 March 2026
11 Mar 2026 13951.1 µg/m³Europe, 1 to 12 March 2026
7 Mar 2025 12444.8 µg/m³Germany, Poland and 25 more countries, March 2025
9 Mar 2026 11842.4 µg/m³Europe, 1 to 12 March 2026
8 Mar 2025 11340.4 µg/m³Germany, Poland and 25 more countries, March 2025
22 Feb 2025 11039.2 µg/m³Europe, 14 February to 1 March 2025
21 Feb 2025 10336.4 µg/m³Europe, 14 February to 1 March 2025
8 Mar 2026 9231.1 µg/m³Europe, 1 to 12 March 2026
23 Feb 2025 9030.1 µg/m³Europe, 14 February to 1 March 2025
2 Mar 2024 8728.5 µg/m³Europe, February and March 2024

Daily means, the highest since 11 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, Kalmar, Sweden, 11 Jan 2023 – 8 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/se/kalmar/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.

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

Updated 2026-10-12 22:07 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).