SmogRank / Belgium / Flanders / Evergem

Evergem, month by month

Evergem has a measured daily mean on 357 days since 11 January 2023. Its worst month was February 2023, at 72 US AQI (20.2 µg/m³), 130th of 1,129 cities on that month's world ranking. Its cleanest was July 2023, at 43 US AQI (7.7 µg/m³).

Every month since 2023

2026too few days for a mean (a year needs 199)4 days measured
JannoneFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOct4 days
2025too few days for a mean (a year needs 256)0 days measured
JannoneFebnoneMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
2024too few days for a mean (a year needs 257)22 days measured
Jan21 daysFeb1 dayMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOctnoneNovnoneDecnone
202356 for the year331 days measured250th of 1,355 in the world
Jan7 daysFeb72#130Mar53#247Apr61#170May60#163Jun59#473Jul43#896Aug44#1,010Sep57#314Oct52#378Nov51#819Dec55#477
Each square is a month's mean PM2.5 in US AQI from Evergem'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 Evergem 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

35 months
MonthWhy
Oct 20264 of 11 days measured; a month needs 8. The others: 7 with no readings from the monitor.
Sep 2026No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
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 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jul 2025No day measured. The others: 31 with under 18 hours of readings or readings that failed our checks.
Jun 2025No day measured. The others: 30 with under 18 hours of readings or readings that failed our checks.
May 2025No day measured. The others: 31 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 202421 of 31 days measured; a month needs 22. The others: 10 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.

Evergem's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2023 7220.2 µg/m³27 of 28130thof 1,129Europe, 6 to 25 February 2023
April 2023 6114.6 µg/m³30 of 30170thof 1,622France, Belgium and Germany, April 2023
Europe, April 2023and 1 more
May 2023 6014.1 µg/m³31 of 31163rdof 1,600–
June 2023 5913.2 µg/m³30 of 30473rdof 1,603–
September 2023 5712.2 µg/m³30 of 30314thof 2,176United Kingdom, Belgium and 2 more countries, September 2023
December 2023 5511.5 µg/m³31 of 31477thof 2,247France, Belgium and 2 more countries, November and December 2023

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.

Evergem's worst days

DayUS AQIEpisode
15 Feb 2023 15663.3 µg/m³Europe, 6 to 25 February 2023
14 Feb 2023 14854.6 µg/m³Europe, 6 to 25 February 2023
13 Feb 2023 10336.4 µg/m³Europe, 6 to 25 February 2023
16 Feb 2023 10236.1 µg/m³Europe, 6 to 25 February 2023
10 Feb 2023 9834.1 µg/m³Europe, 6 to 25 February 2023
9 Sept 2023 9633.5 µg/m³United Kingdom, Belgium and 2 more countries, September 2023
9 Apr 2023 9633.0 µg/m³Europe, April 2023
30 Nov 2023 9633.0 µg/m³France, Belgium and 2 more countries, November and December 2023
22 Feb 2023 9532.8 µg/m³Europe, 6 to 25 February 2023
11 Jan 2024 9532.7 µg/m³Europe, 8 to 27 January 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, Evergem, Belgium, 11 Jan 2023 – 4 Oct 2026. Monitor data from EEA, via OpenAQ and from the publisher directly; sources listed at smogrank.com/sources. smogrank.com/be/evergem/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.

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

Updated 2026-10-12 17:07 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).