With exposure experiment, this paper studied the accumulation and elimination of cadmium (Cd) in the viscera, muscle and gill of Paralichthys olivaceus, and the effects of TOC concentration in seawater on the Cd accumulation. The results showed that when the exposure concentration of Cd was 0.5 mg x L(-1), its accumulation in test tissues increased with time, and reached equilibrium on the 10th day. The accumulation was in order of viscera (147.73 mg x kg(-1) DW) > gill (15.55 mg x kg(-1) DW) > muscle (4.578 mg x kg(-1) DW), which meant that viscera was the main place for Cd accumulation. Determinations after moving the fish into clear seawater on the 13th day of exposure showed that due to depuration, the Cd accumulation in test tissues decreased with time. On the 15th day after moving, the Cd elimination was in order of viscera (80.66%) > gill (73.66%) > muscle (56.84%), suggesting that the Cd accumulation in Paralichthys olivaceus could be reduced to meet safe food standard. The TOC concentration in seawater had a significant effect on Cd accumulation, i.e., the accumulation of Cd decreased significantly with increasing TOC concentration, demonstrating that the TOC in seawater could decrease the bioavailability of cadmium.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
In situ remediation of oil-contaminated soils by ozonation: Experimental study and numerical modeling.
Chemosphere
January 2025
Institute of Chemical Engineering Sciences, Foundation for Research and Technology Hellas (FORTH/ICE-HT), 26504, Patras, Greece. Electronic address:
The goal of the present work is to quantify the performance of ozonation as a method for the in situ remediation of soils polluted at varying degree with different types of hydrocarbons, and assess its applicability, in terms of remediation efficiency, cost factors, and environmental impacts. Ozonation tests are conducted on dry soil beds, for three specific cases: sandy soil contaminated with low, moderate and high concentration of a non-aqueous phase liquid (NAPL) consisting of equal concentrations of n-decane, n-dodecane, and n-hexadecane; sandy soil polluted with diesel fuel; oil-drilling cuttings (ODC). The transient changes of the concentration of the total organic carbon (TOC), total petroleum hydrocarbons (TPH), polycyclic aromatic hydrocarbons (PAHs), and soluble chemical oxygen demand (SCOD) in soil and carbon dioxide (CO), carbon monoxide (CO), volatile organic compounds (VOCs), and ozone (O) in exhaust gases are recorded.
View Article and Find Full Text PDFUltrasonic cavitation treatment of o-cresol wastewater and long-term pilot-scale study.
J Environ Manage
January 2025
School of Environmental Science and Engineering, Changzhou University, Changzhou, Jiangsu, 213164, China. Electronic address:
Acoustic cavitation is a cutting-edge and eco-friendly advanced oxidation technology with significant efficacy in removing organic pollutants from water. Despite its potential, research on the degradation of o-cresol, a common and challenging phenolic pollutant, is limited. This study systematically investigates the optimal conditions for degrading o-cresol via acoustic cavitation and evaluates its application potential through extensive pilot tests.
View Article and Find Full Text PDFA Prospective, Open-Label, Randomized, Comparative, Investigator-Initiated Study to Evaluate the Safety and Effectiveness of Autologous Growth Factor Concentrate Using the Healrex Therapy Kit With Standard Wound Care in Lower-Extremity Diabetic Ulcer.
Cureus
December 2024
Business Development Hospitals, Wockhardt Hospitals Ltd., Mumbai, IND.
Background and objectives The persistent nature of diabetic foot ulcers (DFUs) is mainly attributable to compromised wound healing mechanisms, which are aggravated due to poor blood flow, neuropathy, and infection. Growth factors have become essential agents in the treatment of DFUs, serving as primary mediators that enhance wound healing through the stimulation of cell proliferation, migration, and angiogenesis. This prospective open-label, randomised, comparative, multi-centre, investigator-initiated study compared the safety and effectiveness of adjuvant therapy with topical application of autologous growth factor concentrate (AGFC) using the Healrex therapy kit (Wockhardt, India) versus standard of care (SoC) in DFUs.
View Article and Find Full Text PDFEffect of a high Cl concentration on the transformation of waste leachate DOM by the UV/PMS system: A mechanistic study using the Suwannee River natural organic matter (SRNOM) as a simulator of waste leachate DOM.
J Hazard Mater
January 2025
School of Environmental Science and Engineering, Southwest Jiaotong University, Sichuan, Chengdu 611756, China. Electronic address:
The ultraviolet-activated peroxymosnofulate (UV/PMS) system, an effective advanced oxidation process for removing dissolved organic matter (DOM) from wastewater, is limited by high chloride ion (Cl) concentrations in landfill leachate. This study used Fourier transform ion cyclotron resonance mass spectrometry to explore the transformation of DOM in the UV/PMS system with a high Cl concentration. The results revealed that elevated Cl levels generate reactive chlorine species, including chlorine radicals, dichlorine radicals, and hypochlorous acid/hypochlorite, reducing the total organic carbon (TOC) removal efficiency of Suwannee River natural organic matter (SRNOM) from 78.
View Article and Find Full Text PDFLongitudinal metagenomic analysis on antibiotic resistome, mobilome, and microbiome of river ecosystems in a sub-tropical metropolitan city.
Water Res
January 2025
Environmental Microbiome Engineering and Biotechnology Laboratory, Center for Environmental Engineering Research, Department of Civil Engineering, The University of Hong Kong, Hong Kong SAR, China; School of Public Health, The University of Hong Kong, Hong Kong SAR, China; State Key Laboratory of Marine Pollution, Department of Chemistry and School of Energy and Environment, City University of Hong Kong, Hong Kong SAR, China; Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macao SAR, China. Electronic address:
Rivers play an important role as reservoirs and sinks for antibiotic resistance genes (ARGs). However, it remains underexplored for the resistome and associated mobilome in river ecosystems, and hosts of riverine ARGs particularly the pathogenic ones are rarely studied. This study for the first time conducted a longitudinal metagenomic analysis to unveil the resistome, mobilome, and microbiome in river water, by collecting samples from 16 rivers in Hong Kong over a three-year period and using both short-read and long-read sequencing.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!