SmogRank / Breda / Velsen-Zuid

Breda vs Velsen-Zuid: PM2.5 compared

Over the last year, Velsen-Zuid's air was 9% more polluted than Breda's: PM2.5 averaged 10.0 µg/m³ against 9.2, on the 313 days both cities were measured. Velsen-Zuid had the dirtier air on 187 of those days, Breda on 121. Velsen-Zuid was over the WHO's daily guideline of 15 µg/m³ on 46 of them, Breda on 42.

Right now

Breda#98on the 24-hour board of 1,669, at 73 US AQI (20.7 µg/m³)
Velsen-Zuid#1,486on the 24-hour board of 1,669, at 17 US AQI (3.1 µg/m³)

The last year, day by day

Breda
Velsen-Zuid
Each city's daily mean from 7 Oct 2025 to 6 Oct 2026, one stripe a day, coloured by band. A blank stripe is a day without a daily mean.

Month by month

15Breda, Nov 2025: 9.2 µg/m³Velsen-Zuid, Nov 2025: 8.7 µg/m³Nov 2025Breda, Dec: 10.9 µg/m³Velsen-Zuid, Dec: 11.5 µg/m³DecBreda, Jan 2026: 15.3 µg/m³Velsen-Zuid, Jan 2026: 17.9 µg/m³Jan 2026Breda, Feb: 10.0 µg/m³Velsen-Zuid, Feb: 16.3 µg/m³FebBreda, Mar: 14.7 µg/m³Velsen-Zuid, Mar: 14.7 µg/m³MarBreda, Apr: 8.0 µg/m³Velsen-Zuid, Apr: 8.0 µg/m³AprBreda, May: 7.8 µg/m³Velsen-Zuid, May: 8.6 µg/m³MayBreda, Jun: 5.7 µg/m³Velsen-Zuid, Jun: 7.1 µg/m³JunBreda, Jul: 5.5 µg/m³Velsen-Zuid, Jul: 5.5 µg/m³JulBreda, Aug: 5.7 µg/m³Velsen-Zuid, Aug: 5.8 µg/m³AugBreda, Sep: 7.4 µg/m³Velsen-Zuid, Sep: 6.2 µg/m³SepOct
Monthly means in µg/m³ over the days both cities were measured. Solid: Breda. Faded: Velsen-Zuid. A month shows once both share 10 such days. Dashed line: the WHO daily guideline.

Year by year

YearBredaVelsen-ZuidDays both measuredDays Breda was worse
2026 so far515324192
2025475227691
2024475219855
2023485316144

Means in US AQI over the days both cities were measured that year; a year shows once they share 30 such days.

Each city's worst days

Breda

Velsen-Zuid

Daily means in US AQI, over the days both cities were measured in the last year. Each date opens that day's world board.

Compare either city with another

Breda

Side by side with Tilburg, Venray, Gujranwala.

Velsen-Zuid

Side by side with Haarlem, Gujranwala.

Use this page

SmogRank, PM2.5 daily means compared, Breda and Velsen-Zuid, 8 Oct 2025 – 6 Oct 2026, smogrank.com/compare/nl-breda/nl-velsen-zuid (accessed 6 Oct 2026).

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.

The same rules as every SmogRank figure: reference monitors first, and a day counts with 18 measured hours. How we measure.

Updated 2026-10-06 23:07 UTC. Values are PM2.5 (fine particles), the median of each city's monitors, as the US AQI PM2.5 sub-index.