AI Article Synopsis
- An equilibrium partitioning approach (EqPA) was used to assess metal toxicity and set sediment quality guidelines (SQGs) for various metals in the cockle farming areas of Bandon Bay, Thailand.
- The assessment showed that the levels of metals like arsenic, cadmium, and others were below established SQG values, indicating no harmful effects on benthic organisms.
- The study proposes tailored SQG values for Bandon Bay, which could assist in managing sediment quality and could be used as a model for similar coastal regions.
Article Abstract
An equilibrium partitioning approach (EqPA) was employed to evaluate the metal toxicity and define sediment quality guidelines (SQGs) for arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), nickel (Ni), lead (Pb), zinc (Zn), and mercury (Hg) in the cockle cultivated areas located in Bandon Bay, Thailand. An assessment of metal toxicity using the [∑SEM]-[AVS] and [∑SEM]-[AVS]/f models indicated no adverse effect on benthic organisms. The normalized total metal concentrations in this area were below the established SQG values for As, Cd, Cu, Ni, Pb, Zn, and Hg, namely respectively 21.3, 0.8, 84.6, 36.0, 34.6, 440.9 mg/kg dry weight, and 49.3 μg/kg dry weight on sand and calcium carbonate free with 1 % total organic carbon basis, suggesting low metal toxicity. This study provides locality adapted SQG values for supporting sediment quality management specifically in Bandon Bay, potentially serving as a model for other coastal areas.
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| http://dx.doi.org/10.1016/j.marpolbul.2024.116418 | DOI Listing |
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