Contaminated Land

How Long does Contamination Last?

Once a contaminant reaches the soil, it may break down or be neutralised; be washed out by rain; evaporate or remain in the soil building up to high concentrations. When contaminants build up, it may not be permanent. However soil can sometimes remain polluted indefinitely - there is land contamination in England traceable back to Roman times.

ID: 2471, revised 08/09/2017