Air

The air over the land

Fine smoke and dust over any place on Earth, read now. How the air moves through its day, how often it crossed the line the WHO sets, what the sensors nearby read, and the cleanest hours to open the house in the days ahead.

READING THE AIR

Now

Choose a place

·µg/m³

Its day

Fine particles, the median hour of the last three months How deep the air is that they mix into

The last three months

Each day's average, µg/m³. Lines: the WHO guideline (15), the EU limit from 2030 (25) and the US standard (35) for a day.

The days ahead

Hour by hour, expected. Marked: the three cleanest daylight hours of each day.

Not finished

The hour by hour air is read for the region, a few kilometres across. A fire next door shows on a sensor long before it shows here, and can read ten times higher.
Fine particles only. Ozone, gases and pollen are not read yet.
Sensors are low-cost and public, not reference instruments, and many places have none within 10 km.
Three months back is one season. A whole year needs a sensor on the land through a wet season and a dry one.

Read your own land free →