SmogRank / Belgium / Flanders / Genk

Genk, month by month

Genk has a measured daily mean on 515 days since 11 January 2023. Its worst month was February 2023, at 67 US AQI (17.7 µg/m³), 206th of 1,129 cities on that month's world ranking. Its cleanest was September 2025, at 31 US AQI (5.6 µg/m³).

Every month since 2023

202647 so far258 days measured1,632nd of 2,791 in the world
Jan59#859Feb46#1,912Mar56#1,296Apr43#1,656May42#1,480Jun19 daysJul40#2,098Aug32#2,570Sep36#1,486Oct42#1,170
2025too few days for a mean (a year needs 256)200 days measured
JannoneFebnoneMarnoneAprnoneMay11 daysJun46#1,787Jul37#2,072Aug39#2,174Sep31#2,285Oct43#934Nov48#1,331Dec52#1,490
2024too few days for a mean (a year needs 257)1 day measured
JannoneFeb1 dayMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
2023too few days for a mean (a year needs 256)56 days measured
Jan7 daysFeb67#206Mar20 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Genk'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 Genk marked; each year, the year's. A dashed square is the running month, so far.
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
Jun 202619 of 30 days measured; a month needs 21. The others: 11 with under 18 hours of readings or readings that failed our checks.
May 202511 of 31 days measured; a month needs 22. The others: 20 with under 18 hours of readings or readings that failed our checks.
Apr 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 2025No day measured. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Dec 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Nov 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Oct 2024No day measured. The others: 31 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 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Apr 2024No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
Mar 2024No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Feb 20241 of 29 days measured; a month needs 21. The others: 28 with under 18 hours of readings or readings that failed our checks.
Jan 2024No day measured. The others: 31 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 202320 of 31 days measured; a month needs 22. The others: 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.

Genk's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2023 6717.7 µg/m³25 of 28206thof 1,129Europe, 6 to 25 February 2023
January 2026 5913.2 µg/m³28 of 31859thof 2,617Europe, January and February 2026
March 2026 5611.6 µg/m³26 of 311,296thof 2,971Europe, 18 to 25 March 2026
December 2025 529.4 µg/m³30 of 311,490thof 3,006–
November 2025 488.7 µg/m³24 of 301,331stof 2,715–
June 2025 468.2 µg/m³21 of 301,787thof 2,508–

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.

Genk's worst days

DayUS AQIEpisode
26 Jan 2026 12846.5 µg/m³Europe, January and February 2026
10 Feb 2023 11541.0 µg/m³Europe, 6 to 25 February 2023
12 Feb 2023 10537.1 µg/m³Europe, 6 to 25 February 2023
25 Jan 2026 9633.2 µg/m³Europe, January and February 2026
11 Feb 2023 9331.8 µg/m³Europe, 6 to 25 February 2023
24 Mar 2026 9130.6 µg/m³Europe, 18 to 25 March 2026
16 Feb 2023 8929.3 µg/m³Europe, 6 to 25 February 2023
23 Feb 2023 8426.7 µg/m³Europe, 6 to 25 February 2023
23 Mar 2026 8125.4 µg/m³Europe, 18 to 25 March 2026
20 Mar 2026 8024.9 µg/m³Europe, 18 to 25 March 2026

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, Genk, Belgium, 11 Jan 2023 – 11 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/be/genk/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.

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

Updated 2026-10-12 18:07 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).