The diffuse pollution in the area of the La combe du Saut gold processing factory was remediated by combined chemical and phytostabilisation. This lecture gives a detailed explanation on the work done at the site.
Source
Ruttens, A., Vangronsveld, J, Boisson, J., Pottecher, G., Jacquemin, P.: Metal/metalloid immobilisation and phytostabilisation of metal contaminated sites, lecture, Difpolmine Conference, 8th July, 2005, Budapest, Hungary