MedeMeter turns the readings of thousands of citizen sensors into one honest, readable report per municipality. Measured, not modelled: official maps are often computed models. We show what sensors really measure, and where the two diverge.
Every night we pull the daily averages per municipality and keep them in our own archive, by now a full year for around 300 municipalities. A report pools all the calibrated PM2.5 sensors of a municipality, checks them against the WHO and EU limits, and sums that up in one clear verdict. Every number in that verdict comes straight from the calculation. Nothing is made up.
Impossible values (outside 0–500 µg/m³) are filtered out. The interpretation is informational, not medical advice.
All particulate readings (PM2.5, calibrated by RIVM) from thousands of citizen sensors. This is the heart of every report.
Municipal, district and neighbourhood boundaries plus population counts, for the coverage map and the per-municipality reports.
The modelled PM2.5 annual average we hold the real measurements against in 'measured vs model'.
Wind and weather, for the wind rose and for explaining spikes.
Noise sensors (DNMS, LAeq). RIVM Samen Meten has no noise data; this citizen network does.
The base map.
The method behind the life-expectancy estimate (±0.98 years per 10 µg/m³ above the WHO guideline).