The OPAL National Soil Centre was one of five national centres of expertise under the OPAL project, which ran from 2007 to 2012. The centre was based in the Centre for Environmental Policy, Imperial College London.
OPAL Soil and Earthworm Survey
The centre coordinates the OPAL Soil and Earthworm Survey, which is open to everyone. The survey aims to build a picture of soil quality and earthworm populations all over England. Find out more about how to take part or view the results so far.
Over the first five years, more than half a million people from towns and cities up and down the country explored their local green spaces as part of the OPAL project.
Read more about us