Assessment of Lead (Pb) Leakage From Abandoned Mine Tailing Ponds to Klity Creek, Kanchanaburi Province, Thailand.

ABSTRACT: In 2013, Klity Creek became the site of Thailand's first legally required remediation, 15 years after the spill of lead (Pb)-contaminated mine tailings into the creek. Even today, nature cannot attenuate Pb-contaminated sediment, arguably due to either high geological background Pb or continuous leakage of Pb from the unlined tailing ponds, upstream of the creek. In this study, four lines of evidence were used to reveal that the leakage from tailing ponds is primarily responsible for the long-term Pb contamination. First, stable Pb isotope ratios (²⁰⁶Pb/²⁰⁷Pb and ²⁰⁸Pb/²⁰⁷Pb) were used to apportion sources between the tailings and geological background. The analysis of samples from the tailing ponds, geological background, and local zinc (Zn)-Pb

SUBMITTER: Srirattana S 

PROVIDER: S-EPMC8101536 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature