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Bio-physiological Effects of Heavy Metals in Cage-cultured Tilapia (Oreochromis niloticus) and Anabas (Anabas testudineus) from the Khon Kaen Landfill Reservoir and Associated Human Health Risks |
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| รหัสดีโอไอ | |
| Creator | Bundit Tengjaroensakul |
| Title | Bio-physiological Effects of Heavy Metals in Cage-cultured Tilapia (Oreochromis niloticus) and Anabas (Anabas testudineus) from the Khon Kaen Landfill Reservoir and Associated Human Health Risks |
| Contributor | Ni Yang, Lamyai Neeratanaphan, Nuttawadee Maneesan |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2569 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 19 |
| Journal No. | 2 |
| Page no. | 108-120 |
| Keyword | Aquatic Animal, Contamination, Health Risk, Pathology, Stress |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | Municipal landfill disposal is an emerging environmental concern in Thailand, involvingthe release of heavy metals (HMs) into aquatic ecosystems. In this study, the effects ofHMs exposure on serum liver enzyme changes, liver and gill histopathological alterationsand oxidative stress biomarkers in cage-cultured Oreochromis niloticus and Anabastestudineus fish from the Khon Kaen municipal landfill-contaminated reservoir werecompared with those fish at a reference site, and potential human health risks associatedwith the consumption of the cage-cultured fish from the landfill reservoir were evaluated.The HMs concentrations were analyzed using inductively coupled plasma optical emissionspectroscopy. The concentrations of Cd (0.523 ± 0.084 mg/L), Cr (0.29 ± 0.033 mg/L) andPb (0.34 ± 0.006 mg/L) in the water from the municipal landfill exceeded the standards(0.05, 0.05, and 0.05 mg/L, respectively), and Cd concentration (2.185 ± 0.990 mg/kg) insediment from the Khon Kaen municipal landfill exceeded Thai standards (1 mg/kg). Theconcentrations of the 3 HMs in the fish were below Thai food quality standard. Furthermore,serum biochemistry and oxidative stress levels significantly differed between fish from thetwo sites (p < 0.05) and alanine aminotransferase differed significantly between fish species(p < 0.05). Pyknotic nuclei and cytoplasmic vacuoles were observed in the hepatocytesof both fish, and ballooning lesions were observed only in the gill filaments of landfillO. niloticus. Oxidative stress markers revealed higher level of H2O2 and significantlylower levels of catalase and superoxide dismutase in the caged-cultured fish (p < 0.05).The carcinogenic risk indicated that Pb has a potential impact on human health through theconsumption of cage-cultured O. niloticus and A. testudineus fish from the landfill. Thesefindings suggest that the contamination with 3 HMs induced bio-physiological changesand could pose human health risks through the consumption of the landfill cage-culturedO. niloticus and A. testudineus. |
