PM10 card

Who it’s for

Air quality engineers, city planners, and environmental compliance officers ask “how high is the coarse dust concentration right now?” They need a single card that confirms whether PM10 is within safe limits or has crossed a threshold that requires action or public notification.

What it does

A sensor reading 38 µg/m³ shows an orange icon and value — Moderate — warning that dust is elevated above the Good range. The same card shows green at 12 µg/m³ — Good — and red at 180 µg/m³ — Hazardous.

• Color-coded icon and value that shift across four PM10 bands from Good to Hazardous
• Last-updated timestamp showing how long ago the reading arrived
• Shows one sensor’s data; it does not chart trends or compare multiple monitoring sites

How to set up

Data keys

Key	Role	Type	Description
pm10	Main value	Timeseries	PM10 concentration in µg/m³; change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled PM10, so it draws random values until you point the datasource at a device and rename the key.

To point it at your own device: open the dashboard in edit mode, open the widget’s Datasources, pick the entity or entity alias, and replace the function key with the key your device reports.

The card shows the value in µg/m³ with no decimal places. If the key has never reported, the card displays the label and icon with an empty value, not an error.

Value ranges

Range	Level	Color
0–20	Good	Green
20–50	Moderate	Orange
50–150	High	Dark Orange
150+	Hazardous	Red

How to customize

• To use your own PM10 thresholds — edit Icon color ranges and Value color ranges; set the same boundaries in both so the icon and the number always agree.
• To change the icon — set Icon to any Material or MDI icon name.
• To hide the label, icon, or timestamp — turn off Show label, Show icon, or Show date.
• To switch to an absolute timestamp — turn off Last update ago in the date format settings.
• To match your dashboard’s fonts — set Value font and Label font.

Tips

• Keep Icon color ranges and Value color ranges on the same boundaries so the icon and the number always show the same band.
• WHO Air Quality Guidelines set a 24-hour mean target of 45 µg/m³ for PM10. The default Moderate band (20–50 µg/m³) straddles this target, so values in the upper half of Moderate already warrant attention.