Data frame with example data from four sites in London in 2009.
- date
The date and time of the measurement
- nox, no2, pm2.5, pm10
Pollutant concentrations
- site
The site name. Useful for use with the popup
and label
arguments in openairmaps
functions.
- latitude, longitude
Decimal latitude and longitude of the sites.
- site.type
Site type of the site (either "Urban Traffic" or "Urban Background").
- wd
Wind direction, in degrees from North, as a numeric vector.
- ws
Wind speed, in m/s, as numeric vector.
- visibility
The visibility in metres.
- air_temp
Air temperature in degrees Celcius.