We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
The Pollution Characteristics of Harmful Heavy Metal in Surface Sediment of Sepang River, Malaysia
Summary
Researchers measured arsenic, manganese, zinc, chromium, iron, and cobalt concentrations in mangrove sediments of the Sepang River in Malaysia using instrumental neutron activation analysis, assessing heavy metal pollution levels relative to background values. The study documents the distribution of harmful heavy metals in a coastal mangrove ecosystem subject to anthropogenic pressures.
The presence of heavy metal in environment is commonly associated with environmental pollution, which requires monitoring. Human activities have caused a tremendous increase in heavy metal pollution in aquatic environment that includes mangroves, rivers, estuaries, and coastal wetlands. With that, it is critical to assess environmental and health impacts of pollution in Sepang River. In this study, the presence of heavy metal in the mangrove sediment from Sepang River was detected. The concentrations of As, Mn, Zn, Cr, Fe and Co in the sediment were measured using instrumental neutron activation analysis (INAA). It is found that the concentration of As was determined to be higher than the geochemical background value of shale, across all sampling sites, while Co concentrations were observed to be the lowest. The enrichment factor (EF) and geo-accumulation index (Igeo) of the heavy metals were calculated. The study indicated that, both EF and Igeo of As, 8.09 and 1.84 respectively show severe to excessive enrichment and moderate pollution. Overall, the study suggests that heavy metal pollution in the Sepang River, particularly with respect to As, needs to be closely monitored to prevent it from becoming a major environmental and health hazard. The study also highlights the importance of using advanced analytical techniques, such as INAA, to accurately measure the concentrations of heavy metals in environmental samples.
Sign in to start a discussion.
More Papers Like This
Assessment of heavy metal distribution, contamination, and ecological risk in mangrove sediments of the Nabq Protectorate, Gulf of Aqaba
This study analyzed the distribution of six heavy metals (Cu, Fe, Cd, Pb, Zn, and Mn) in mangrove sediments at Nabq Protectorate in the Gulf of Aqaba, finding that concentrations were generally below contamination thresholds compared to crustal averages. Iron showed the highest concentrations, while the area was assessed as largely uncontaminated relative to reference standards.
Distribution of Heavy Metals in Sediments and Soft Tissues of the Cerithidea obtusa from Sepang River, Malaysia
Heavy metal concentrations were measured in the tissues, shells, and surface sediments associated with the mangrove snail Cerithidea obtusa from a Malaysian river estuary. Iron was the dominant metal across all compartments, and soft tissues accumulated metals differently from shells. The study contributes to understanding how estuarine organisms accumulate metals from contaminated sediments.
Spatial Distribution and Risk Assessment of Heavy Metals in Sediments of the Mangrove Ecosystem in Ras Mohammed Protectorate, Gulf of Aqaba, Red Sea
Researchers measured heavy metal concentrations (including lead, cadmium, copper, and zinc) in mangrove sediments of Ras Mohammed Protectorate in the Gulf of Aqaba, Red Sea, and assessed ecological risks. The spatial distribution showed variation across sites, with some metals elevated above background levels in areas closer to human activities.
The Ecological-Health Risks of Potentially Toxic Metals in the Surface Sediments and Leaves of Salt-Secreting Avicennia officinalis as Potential Phytoremediators: A Field-Based Biomonitoring Study from Klang Mangrove Area
Surface sediments in the Klang mangrove ecosystem were analyzed for potentially toxic metals, revealing elevated concentrations of lead, cadmium, and zinc that pose ecological and human health risks. Avicennia officinalis was assessed for phytoremediation potential, showing uptake of certain metals from contaminated sediments.
Past Metal(loid) Pollution Records Inferred fromthe Sediments of Bukit Merah Reservoir Perak,Malaysia
This study reconstructed historical metal pollution in Bukit Merah Reservoir in Malaysia by analyzing sediment cores for metal distribution and geochemical indicators, finding evidence of elevated pollution from tin mining and agricultural activities that began in the 1980s and persists in deeper sediment layers.