Phase 3 Investigation: In Situ Reduction of Lead Bioaccessibility in Soils (1999 – Draft)

This study aimed to determine whether the bioaccessibility of lead (and arsenic and cadmium) in Trail soils could be lowered by adding amendments to the soil. In this third phase of work, samples of Trail soils were first tested at laboratory bench scale again, to compare the best amendment from previous phases (phosphate and iron) with amendments that had been presented in recent literature. This resulted in selecting two proprietary commercially available amendments in Phase 3, along with phosphate and iron, for testing in the next phase, which would take place in situ at Trail.