Long-term monitoring of a coastal marine ecosystem after landfill remediation using oxidative stress biomarkers and heavy metal analysis in mussels
Aleksandra Istomina , Victor Chelomin , Olesya Elovskaya , Ludmila Kolosova , Avianna Zhukovskaya , Kirill Aksentov
Asian Journal of Water, Environment and Pollution ›› 2026, Vol. 23 ›› Issue (1) : 200 -210.
Gornostay Bay, located near the city of Vladivostok (Far East of Russia), has long served as a site for the placement and operation of a solid domestic waste landfill. The functioning of the landfill resulted in extensive and complex pollution of the coastal water area. Remediation and closure measures in 2010 were expected to improve the ecological condition of the bay. This study demonstrates the application of biochemical markers of oxidative stress as indicators of metabolic recovery processes in marine invertebrates, using bivalves as a model group. The results demonstrated a time-dependent decrease in the concentrations of potentially toxic elements in mussel tissues and a reduction in oxidative lipid degradation to control levels. These findings indicate an improvement in the quality of the marine environment in the years following the 2010 landfill remediation activities. Based on molecular indicators of oxidative stress and the content of heavy metals in the digestive gland and gills of Crenomytilus grayanus from polluted Gornostay Bay, the study concludes that a gradual restoration of the marine environment has occurred.
Biomonitoring / Potentially toxic elements / Landfill / Marine environmental remediation / Mussels / Oxidative stress
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