Concentrations of 11 metals (cadmium, zinc, copper (Cu), vanadium (V), lead, magnesium (Mg), manganese, aluminum, iron (Fe), chromium (Cr), and nickel), and one metalloid (arsenic (As)) were measured in sediment, common reed (Phragmites australis), algae (Spirogyra sp.), and blood worm (Chironomus sp.) tissues of samples collected from the Shoor river. Samples were dried, acid digested, and the concentrations of metals were measured using inductively coupled plasma-optical emission spectrometer. A higher concentration of heavy metals was accumulated in Spirogyra and Chironomids than sediment and common reed. The highest rate of accumulation was found for Mg, V, Fe, As, Cu, and Cr. Spirogyra and Chironomids are capable of accumulating and thereby removing metals from polluted water bodies and are suitable for biomonitoring purposes.
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http://dx.doi.org/10.1177/0748233713500835 | DOI Listing |
Mar Pollut Bull
January 2025
Suganthi Devadason Marine Research Institute, Tuticorin, Tamil Nadu, India; Manonmaniam Sundaranar University, Abishekapatti, Tirunelveli, Tamil Nadu, India.
This research investigated the relationship between microplastic accumulation and the sediment texture in seagrass meadows across the selected coastal regions of Tuticorin. Sixteen sediment samples were collected by SCUBA divers utilizing a stainless steel grab sampler. Findings indicate significantly elevated microplastic concentrations in seagrass sediments when compared to unvegetated areas.
View Article and Find Full Text PDFSci Total Environ
January 2025
Department of Forest Science, College of Agriculture, University of São Paulo (ESALQ), Av. Padua Dias, 11, Caixa Postal 9, 13418-900 Piracicaba, SP, Brazil.
Forest restoration has been a common practice to safeguard water quality and stream health but it is unclear to which extent and pace forest restoration recovers stream ecosystem structure and functions. Also, stream health might be affected by the forest restoration type and the quality of the interventions. Here, we sought to evaluate the recovery of stream habitat and water quality through forest restoration in catchments dominated by pasturelands, and explored the relationship between landscape structure and stream ecosystem recovery.
View Article and Find Full Text PDFSci Total Environ
January 2025
Department of Microbiology, Pondicherry University, Kalapet, Puducherry 605014, India. Electronic address:
Climate change-induced rise in sea surface temperatures has led to an increase in the frequency and severity of coral bleaching events, ultimately leading to the deterioration of coral reefs, globally. However, the reef-building corals have an inherent capacity to acclimatize to thermal stress on pre-exposure to high temperatures by altering their endosymbiotic Symbiodiniaceae community composition towards a thermal tolerant composition. This reorganisation may become an important tool in coral's resilience to rapid environmental change.
View Article and Find Full Text PDFWater Res
December 2024
Key Laboratory of Poyang Lake Environment and Resource Utilization, Engineering Research Center of Watershed Carbon Neutralization, Ministry of Education, School of Resource and Environment, Nanchang University, Nanchang 330031, China. Electronic address:
To effectively mitigate global eutrophication in lakes, regulating sedimentary phosphorus release remains a primary strategy. Enhancing the adsorption and stabilization performance of passivating agents is integral to addressing endogenous phosphorus pollution in aquatic systems. This study presents a novel aerogel with a high specific surface area (663.
View Article and Find Full Text PDFJ Hazard Mater
January 2025
State Key Laboratory of Pollution Control and Resource Reuse, School of Environment, Nanjing University, Nanjing 210023, China. Electronic address:
Non-antibiotic pollutants have been identified as contributors to the development of antibiotic resistance across various environments. Wastewater treatment plants, recognized as hotspots for antibiotic resistance genes (ARGs), have received extensive attention regarding the mechanisms driving resistance changes in activated sludge. However, the specific impacts of heavy metals and aromatic organics-common pollutants in industrial wastewater-on the resistome of activated sludge, as well as the underlying mechanisms driving these effects, remain underexplored.
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