Argonne's work in environmental restoration addresses soil, surface water, sediment, and groundwater at contaminated sites, starting with environmental evaluations and planning projects. Assessments are also conducted of approaches for long-term stewardship of remediated sites with residual contamination. Remedies range from precise excavations to innovative combinations of engineered wetlands and phytoremediation.

Argonne researchers conduct approaches for long-term stewardship of remediated sites with residual contamination. The objective of environmental security programs is to support efforts to reduce national and international threat from nuclear, biological, and chemical weapons.