Air quality · PM2.5good
9.5 µg/m³
The available annual series averages 1.9× the WHO annual guideline of 5 µg/m³. The daily average exceeded 15 µg/m³ on 68 days.
The recent period is 42% lower than the preceding period.
Alphen aan den Rijn
Zuid-Holland114.182 residents132,0 km²
31
sensors, 0,2/km²
Public summary
What the measurements in Alphen aan den Rijn show
The citizen sensor network in Alphen aan den Rijn, Zuid-Holland, contains 31 sensors: an average of 0.2 per km². Projects including Luftdaten and Palmes contribute measurements to this public network.
Noise
Alphen aan den Rijn does not yet have a reliable municipality-wide noise series. MedeMeter is designed to make local noise patterns near homes visible.
Building the report for Alphen aan den Rijn…
We're reading the citizen sensors and making sense of the figures.
did you know?Particulate matter (PM2.5) is roughly 30× thinner than a human hair. Small enough to reach deep into your lungs.
