PiSpace Air

Plan a time or look back at a site

Start with a city forecast to compare the same model and forecast hour. For a past event, open the linked station where present and find a pollutant observation for your date. Check the pollutant unit, the local setting and whether the site measured or modelled the value. Station coverage is selective and updates and gaps vary by source.

The coverage page helps you see available forecasts and monitored sites. Read the index method before comparing colours or labels across apps, especially if they use different pollutants or averaging periods.

• Compare city forecasts

• Inspect coverage and gaps

• Plan a wider city comparison