SmogRank / Belgium / Wallonia / Rixensart

Rixensart, month by month

Rixensart has a measured daily mean on 709 days since 11 January 2023. Its worst month was February 2025, at 76 US AQI (22.3 µg/m³), 395th of 2,633 cities on that month's world ranking. Its cleanest was August 2026, at 16 US AQI (2.8 µg/m³).

Every month since 2023

202633 so far264 days measured2,503rd of 2,791 in the world
Jan53#1,094Feb29#2,557Mar55#1,319Apr31#2,337May28#2,348Jun18 daysJul20#2,726Aug16#2,884Sep21#2,809Oct34#1,672
202549 for the year322 days measured1,440th of 2,681 in the world
Jan62#497Feb76#395Mar70#632Apr57#748May27#2,362Jun23#2,387Jul21#2,785Aug23#2,792Sep17#3,057Oct30#1,866Nov36#2,039Dec39#2,127
2024too few days for a mean (a year needs 257)67 days measured
JannoneFeb1 dayMarnoneAprnoneMaynoneJunnoneJulnoneAugnoneSepnoneOct13 daysNov60#454Dec56#675
2023too few days for a mean (a year needs 256)56 days measured
Jan7 daysFeb60#410Mar20 daysApr3 daysMaynoneJunnoneJul1 dayAugnoneSepnoneOctnoneNovnoneDecnone
Each square is a month's mean PM2.5 in US AQI from Rixensart'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 Rixensart 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

22 months
MonthWhy
Jun 202618 of 30 days measured; a month needs 21. The others: 12 with under 18 hours of readings or readings that failed our checks.
Oct 202413 of 31 days measured; a month needs 22. The others: 18 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.

Rixensart's worst months

MonthUS AQIDays measuredWorld rankEpisode
February 2025 7622.3 µg/m³25 of 28395thof 2,633Europe, 14 February to 1 March 2025
Europe, 1 to 14 February 2025
March 2025 7019.1 µg/m³25 of 31632ndof 2,862Europe, March 2025
Germany, Poland and 25 more countries, March 2025and 1 more
January 2025 6214.9 µg/m³29 of 31497thof 2,474Germany, France and 19 more countries, January 2025
Europe, January 2025and 2 more
November 2024 6014.1 µg/m³27 of 30454thof 2,624–
February 2023 6014.0 µg/m³25 of 28410thof 1,129Europe, 6 to 25 February 2023
April 2025 5712.1 µg/m³25 of 30748thof 2,951–

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.

Rixensart's worst days

DayUS AQIEpisode
25 Mar 2025 13147.8 µg/m³Europe, March 2025
10 Feb 2025 13047.2 µg/m³Europe, 1 to 14 February 2025
12 Jan 2025 11842.3 µg/m³Western Europe, January 2025
3 Feb 2025 11440.7 µg/m³Europe, 1 to 14 February 2025
26 Jan 2026 11039.0 µg/m³Europe, January and February 2026
10 Mar 2025 10737.9 µg/m³Germany, Poland and 25 more countries, March 2025
7 Mar 2026 10737.9 µg/m³Europe, 1 to 12 March 2026
2 Feb 2025 10135.7 µg/m³Europe, 1 to 14 February 2025
10 Feb 2023 10035.2 µg/m³Europe, 6 to 25 February 2023
11 Mar 2025 9834.2 µg/m³Germany, Poland and 25 more countries, March 2025

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, Rixensart, 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/rixensart/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.

Rixensart 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).