Assessment of heavy metal pollution and ecological risk in sediments from the Southeast coastal and riverine zones of Bangladesh

Key Points

• Sediment samples display elevated heavy metal levels, with lead detected at concentrations over 100 mg/kg.
• Samples collected from both coastal and riverine zones provide critical insights into pollution sources.
• Assessment employs detailed testing methods to evaluate ecological risk associated with heavy metal concentrations.
• Highlighting the need for environmental management strategies to address emerging pollution challenges.