Geochemical fate of lead in contaminated residential soils following application of amendments for lead immobilization
Despite contrasting soil chemistries, all treatments achieved rapid and statistically significant Pb stabilization via distinct mechanisms, including Ca<sup>2+</sup>-facilitated precipitation, pH-driven surface complexation, and Al-hydroxide sorption. This work provides a mechanistic, transferable framework for tailoring low-cost, in situ amendments to local soil geochemistry to durably reduce Pb bioavailability and exposure risk in urban residential soils.
Authors
- Washington Braida (ORCID: https://orcid.org/0000-0001-8165-613X)
- Hadeer N. Saleh
- Dibyendu Sarkar (ORCID: https://orcid.org/0000-0001-6499-177X)
- Rupali Datta
- Zhiming Zhang
Institutions
- Stevens Institute of Technology (US)
- Michigan Technological University (US)
- Rowan University (US)
Publication Details
- Journal
- Frontiers in Chemistry
- Published
- 2026-02-04
- DOI
- https://doi.org/10.3389/fchem.2026.1742013
- Primary Topic
- Heavy metals in environment
- Type
- article
- Field-Weighted Citation Impact
- 0.00