Relative bioavailability and bioaccessibility and speciation of arsenic in contaminated soils.

ABSTRACT:

Background

Assessment of soil arsenic (As) bioavailability may profoundly affect the extent of remediation required at contaminated sites by improving human exposure estimates. Because small adjustments in soil As bioavailability estimates can significantly alter risk assessments and remediation goals, convenient, rapid, reliable, and inexpensive tools are needed to determine soil As bioavailability.

Objectives

We evaluated inexpensive methods for assessing As bioavailability in soil as a means to improve human exposure estimates and potentially reduce remediation costs.

Methods

Nine soils from residential sites affected by mining or smelting activity and two National Institute of Standards and Technology standard reference materials were evaluated for As bioavailabil

SUBMITTER: Bradham KD 

PROVIDER: S-EPMC3226497 | biostudies-literature | 2011 Nov

REPOSITORIES: biostudies-literature