Atlas of Contaminated Sites

Trial site, Switzerland

Switzerland, two contaminated soils (Thlaspi field trials)

Two Swiss soils contaminated twenty years earlier: a calcareous one, by atmospheric deposition, and an acidic one, by septic-tank wastes. The abstract does not name the places.

Phytoremediation

Contaminants

Metals

Plants and fungi at this site

PhytoremediationField scale

Noccaea caerulescens (Thlaspi caerulescens)

Hammer and Keller compared transplants repeated three times in eight months with two sowings over the same period.

Outcome Annual removal with transplants: 130 g/ha of cadmium and 3.7 kg/ha of zinc on the calcareous soil, 540 g/ha and 20 kg/ha on the acidic one. For cadmium the authors estimate clean-up in under ten years within Swiss limits; for zinc the soil content is too high for a realistic time span. The extractable fraction of the two metals did not fall.

From the literature

Species that acted on one of this site's contaminants in at least one study. The list is automatic and takes no account of this site's soil, concentrations or climate.

Plants

Fungi

The rest are on the contaminant pages.

Sources

  1. Hammer and Keller, Phytoextraction of Cd and Zn with Thlaspi caerulescens in field trials, Soil Use and Management, 2003

Draft compiled from public sources, not yet reviewed.