What is the air quality trend in Sint-Niklaas?

Over the past 3 days, Sint-Niklaas had an average AQI of 70 based on station measurements. The worst day was 2026-10-19 with AQI 108.

How is Sint-Niklaas air quality measured?

Air quality in Sint-Niklaas is measured by ground-level monitoring stations that report PM2.5 and PM10 concentrations hourly. CERNS.IO aggregates readings from nearby stations and converts PM2.5 to the US EPA Air Quality Index (AQI) scale.

Air Quality History for Sint-Niklaas, Belgium

Name: Sint-Niklaas Air Quality History
Creator: CERNS.IO
License: https://creativecommons.org/licenses/by/4.0/

Historical PM2.5 and AQI trend from monitoring stations near Sint-Niklaas, Belgium.

Current AQI
Good Station

48 Hours 7 Days 14 Days 20 Days

CSV JSON

Air Quality Index Station

47h

PM2.5 Station

47h · 1 station

Temperature GFS model

8pt

Precipitation GFS model

mm/day

Daily Summary Station

Date	AQI	Range	PM2.5 avg	PM10 avg	Hours	Stations
2026-10-21	27	3–75	7.1 µg/m³	8.2	14h	1
2026-10-20	75	22–105	24.1 µg/m³	26.2	24h	1
2026-10-19	108	72–140	38.0 µg/m³	46.0	9h	1

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