<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Effluents from a pulp and paper mill in India were analyzed for various physicochemical parameters and heavy metals. Multivariate statistical analysis was used to interpret the data obtained and predict the toxicity of each component to <italic>Cyprinus carpio</italic> L. fingerlings. The results showed that most of these parameters exceeded recommended levels set by various agencies, and the effluent was not suitable for discharge into agricultural fields or water bodies without further treatment. The results of static renewal toxicity tests revealed median lethal concentrations at 24, 48, 72, and 96 h to be 42, 25, 18.6 and 14.5%, respectively, and the fingerlings exhibited severe behavioral anomalies. The sublethal dose of 2.9% (v/v) caused alterations in the gill and liver at durations of 7, 14, 21, and 28 d. Anomalies such as mucous secretion, leucocyte infiltration, curling of the secondary lamellae tip, clubbing, and the fusion of the secondary lamellae, aneurism, etc. were prominent. The liver showed inflammatory infiltration, cytoplasmic inclusion bodies, vacuolar degeneration, fatty degeneration, pyknosis, karyolysis, distorted pancreatic area, and piecemeal necrosis, among other pathological symptoms. The study concluded that the effluent, even in greatly diluted form, was highly toxic and the severity of responses depended on the length of exposure.</p></abstract>

Effluents from a pulp and paper mill in India were analyzed for various physicochemical parameters and heavy metals. Multivariate statistical analysis was used to interpret the data obtained and predict the toxicity of each component to Cyprinus carpio L. fingerlings. The results showed that most of these parameters exceeded recommended levels set by various agencies, and the effluent was not suitable for discharge into agricultural fields or water bodies without further treatment. The results of static renewal toxicity tests revealed median lethal concentrations at 24, 48, 72, and 96 h to be 42, 25, 18.6 and 14.5%, respectively, and the fingerlings exhibited severe behavioral anomalies. The sublethal dose of 2.9% (v/v) caused alterations in the gill and liver at durations of 7, 14, 21, and 28 d. Anomalies such as mucous secretion, leucocyte infiltration, curling of the secondary lamellae tip, clubbing, and the fusion of the secondary lamellae, aneurism, etc. were prominent. The liver showed inflammatory infiltration, cytoplasmic inclusion bodies, vacuolar degeneration, fatty degeneration, pyknosis, karyolysis, distorted pancreatic area, and piecemeal necrosis, among other pathological symptoms. The study concluded that the effluent, even in greatly diluted form, was highly toxic and the severity of responses depended on the length of exposure.

Assessment of pulp and paper mill effluent quality and its toxicity to fingerlings of <italic>Cyprinus carpio</italic>

Aquatic Toxicology and Remediation Laboratory

Department of Life Science and Bioinformatics

Fisheries & Aquatic Life

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Assessment of pulp and paper mill effluent quality and its toxicity to fingerlings of 

Effluents from a pulp and paper mill in India were analyzed for various physicochemical parameters and heavy metals. Multivariate statistical analysis was used...

Assessment of pulp and paper mill effluent quality and its toxicity to fingerlings of Cyprinus carpio

Pubblicato online: 01 feb 2019

Pagine: 243 - 256

Ricevuto: 27 apr 2016

Accettato: 24 set 2018

DOI: https://doi.org/10.2478/aopf-2018-0028

Parole chiave
common carp, physicochemical, metal, multivariate analysis, LC, chronic, histopathology

© 2018 Archives of Polish Fisheries, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Assessment of pulp and paper mill effluent quality and its toxicity to fingerlings of Cyprinus carpio

Pubblicato online: 01 feb 2019

Pagine: 243 - 256

Ricevuto: 27 apr 2016

Accettato: 24 set 2018

DOI: https://doi.org/10.2478/aopf-2018-0028

Parole chiavecommon carp, physicochemical, metal, multivariate analysis, LC, chronic, histopathology

© 2018 Archives of Polish Fisheries, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Parole chiave
common carp, physicochemical, metal, multivariate analysis, LC, chronic, histopathology