CONCENTRATIONS OF ZINC, COPPER, LEAD AND CADMIUM IN EDIBLE FIN FISHES OF COASTAL WEST BENGAL, INDIA (original) (raw)
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Concentrations of Zn, Cu, Pb and Cd were determined in edible finfish species (Polynemus paradiseus, Tenualosa ilisha, Liza parsia, Liza tade and Stolephorus commersonii) collected from four stations in and around Indian Sundarbans. Levels of the selected heavy metals were determined in the muscle of edible finfish species in the Gangetic delta region using a Perkin-Elmer Sciex ELAN 5000 ICP mass spectrometer and expressed as mg kg-1 dry weight. To determine whether heavy metal concentrations varied significantly between sites and species, Duncan multiple range test was performed. In finfish species the concentrations of Zn, Cu, Pb and Cd ranged from 15.89±0.58-124.12 ±1.63 ppm, 13.68±0.83-75.91±0.49 ppm, 3.34±0.90-19.89±0.54 ppm and BDL-4.01±0.03 ppm respectively. For Zn and Cu, accumulated metal concentration in Stn. 4 is significantly lower than accumulated metal concentration in Stn. 1 and Stn. 2. For Pb, significant difference between stations was not found. Among the selected species, lowest metal accumulation values was found for S. commersonii (p<0.05). The selected heavy metals in finfish muscle (except Zn in Liza parsia and Liza tade in Stn. 1) were also within the permissible limits for human consumption as indicated by the Food and Agricultural Organization.
Concentrations of Cu, Mn, Zn, Fe, Cr, and Pb were estimated using ICP-MS in nine commercially important and locally consumed fish species (Sarda orientalis, Scomberomorus commerson, Rastrelliger kanagurta, Sardinella longiceps, Paraplagusia bilineata, Cynoglossus lida, Cynoglossus macrostomus, Lepturacanthus savala, and Siganus javus) collected from coastal waters of Kalpakkam, eastern part of India. Their concentration (μg g −1 ) in the examined fish species ranged as follows: Cu (0.8-6.5), Zn (14.3-27.9), Mn (0.5-8.8), Fe (17.6-117.0), Cr (0.24-1.78), and Pb (0.18-2.29). Concentrations of most of the metals in the fish species studied were found to be safe for human consumption barring Mn.
Toxicology Reports, 2019
This paper assesses the potential human health risks posed by five heavy metals (Zn, Pb, Cu, Cd, and Cr) found in seven most consumable fish species (Cirrhinus mrigala, Cirrhinus reba, Catla catla, Lebio rohita, Crossocheilus latius, Clupisoma garua, and Mystus tengara) collected from local markets of Varanasi, Allahabad, Mirzapur, and Kanpur of Uttar Pradesh, India. The Cu concentration was found at Varanasi (4.58 mg/l), Allahabad (2.54 mg/l), and Mirzapur (2.54 mg/l). Pb was recorded 0.54, 0.62, 0.85, and 0.24 mg/l at Kanpur, Allahabad, Mirzapur, and Varanasi, respectively. The Cd concentration was recorded 0.54, 0.68, 0.78, and 0.85 mg/l at Kanpur, Allahabad, Mirzapur, and Varanasi, respectively. The Cr, Cd, and Pb concentrations in the river water were observed over the prescribed safe limits at all sampling sites, while Cu concentration was higher than the standards at all sites except Kanpur. However, Zn was observed under the permissible limits (15 mg/l) at all sampling sites. In case of fish tissues, WHO reported the concentration of Pb, Cd, and Cr higher than the prescribed safe limits. The results determined that the highest heavy metals accumulation was found settled in the liver of all selected fish species. Zn ranked the highest quantity, which was found in fish tissues with the concentration of 32.41 ± 2.55 μg/g in the gill of C. catla and 4.77 ± 0.34 μg/g in the gill C. Reba. The metals followed the magnitude order of Zn > Pb > Cu > Cd > Cr in selected fish tissues.
Worldwide increase in consumption of fishes as food has immense therapeutic and nutritional benefits. Heavy metal contamination of marine water ecosystem occurring due to urban and industrial waste discharge, agricultural runoff and accidental spills of toxic chemicals is globally a rising concern and possesses a huge threat for human health due to their regular feeding habits. Humans consume heavy metal accumulated fish as a dietary uptake and are vulnerable to certain health risks. An attempt was made in the present investigation to monitor heavy metals concentration namely Mn, Ni, Co and Cu in different tissues (Gills, Muscle and Liver) of three selected edible fishes of Visakhapatnam namely Indian Mackerel (Rastrelliger kanagurta), Yellowtail Scad (Atule mate) and Pink Perch (Nemipterus japonicas) in the vicinity of Visakhapatnam coast. The extent of metal concentration in the tissues ranged from Ni>Cu>Mn>Co. The levels of heavy metals varied among the various tissues i...
Zinc, Copper, Lead and Cadmium levels in edible finfishes from lower Gangetic delta
The aim of this study is to determine the heavy metals (Zn, Cu, Pb and Cd) in edible finfish species (Polynemus paradiseus, Tenualosa ilisha, Liza parsia, Liza tade and Stolephorus commersonii) and compare the level of heavy metals determined in the Gangetic delta region earlier. Finfish species were sampled from 4 different stations. Levels of four selected heavy metals were determined in the muscle of edible finfish species in the Gangetic delta region using a Perkin-Elmer Sciex ELAN 5000 ICP mass spectrometer and expressed as mg kg-1 dry weight. To determine whether heavy metal concentrations varied significantly between sites and species, analysis of variance (ANOVA) was performed. In addition to, heavy metal concentrations were compared with WHO and FAO's permited levels. In finfish species the concentrations of Zn, Cu, Pb and Cd ranged from 12. respectively. For Zn and Cu, accumulated metal concentrations in Stn. 4 were significantly higher than accumulated metal concentration in Stn 1 and Stn 2. For Pb, significantly stational difference between stations was not found. Between all studies fish species, lowest metal acculation values was found for S. commersonii (p<0.05). The selected heavy metals in finfish muscle (except Zn in Liza parsia in station 1) were also within the permissible limits for human consumption as indicated by the Food and Agricultural Organization.
International Journal for Research in Applied Science and Engineering Technology IJRASET, 2020
Nellore has a coastline that stretches about 169 kms. Urbanization and coastal development activities such as beach development, Krishnapatnam port expansions, industrial developments and anthropogenic metals are introduced into adjacent waters of Nellore coast. In the study, estimated the bio-accumulation of heavy metal levels (Mercury (Hg), Lead (Pb), Cadmium (Cd), and Zinc (Zn)) by Atomic Absorption Spectrophotometer (AAS) (AOAC-2000) in muscle and liver tissues of Cybium guttatam (Seer) and Pampusargenteus (Silver pomfret) fishes which were collected from Krishnapatnam and Mypadu regions of Nellore District. Study results showed that the metals content was determined in the edible parts of the selected fishes and the obtained values were compared with maximum permissible limits set by International safety agencies. Selected heavy metals (Hg, Pb, Cd and Zn) concentration in the muscle and liver of selected fishes varied significantly depending upon the locations. Hg levels detected in Cybium guttatam collected from Krishnapatnam and Mypadu areas were lower than the permissible levels set by WHO,1985. Pb levels in muscle and liver of both fishes were below the maximum permissible limits in comparison with International safety agencies (EC-2005).
Worldwide increase in consumption of fishes as food has immense therapeutic and nutritional benefits. Heavy metal contamination of marine water ecosystem occurring due to urban and industrial waste discharge, agricultural runoff and accidental spills of toxic chemicals is globally a rising concern and possesses a huge threat for human health due to their regular feeding habits. Humans consume heavy metal accumulated fish as a dietary uptake and are vulnerable to certain health risks. An attempt was made in the present investigation to monitor heavy metals concentration namely Mn, Ni, Co and Cu in different tissues (Gills, Muscle and Liver) of three selected edible fishes of Visakhapatnam namely Indian Mackerel (Rastrelliger kanagurta), Yellowtail Scad (Atule mate) and Pink Perch (Nemipterus japonicas) in the vicinity of Visakhapatnam coast. The extent of metal concentration in the tissues ranged from Ni>Cu>Mn>Co. The levels of heavy metals varied among the various tissues in the fish species studied and the concentrations of the metals found in gill tissues were high.
Sri Lanka Journal of Aquatic Sciences, 2018
Heavy metal contamination in aquatic ecosystems has become an emerging environmental issue. The stable physicochemical properties of heavy metals could result in bioconcentration and bioaccumulation in different organs of freshwater fishes. The present study records the accumulation of Lead (Pb), Cadmium (Cd), Chromium (Cr), Copper (Cu) and Zinc (Zn) in the head, muscle and skin regions of seven fish species namely, Labeo rohita, Oreochromis mossambicus, Oreochromis niloticus, Etroplus suratensis, Heteropneustes fossilis, Oligolepsis acutipennis and Puntius dorsalis collected from Minnerya, Parakrama Samudraya and Kaudulla reservoirs in Polonnaruwa district, Sri Lanka. The results showed that both Pb and Cd accumulated in high concentrations in the head region compared to the skin and muscles of the fish samples. The highest amounts of Pb (22.44±5.48 mg/Kg) and Cd (4.98±0.86mg/Kg) were recorded from the head parts of the H. fossilis in Minneriya and O. niloticus in Kaudulla respectively, whereas the highest amount of Cr (30.87±4.51mg/Kg) was detected in head part of the O. acutipennis in Minneriya. The Cu concentration was the highest (2.92±0.001 mg/Kg) in head regions of H. fossilis from Minneriya. Zn was the most abundant heavy metal detected in the head, muscle and skin regions of fish in all three reservoirs. The highest amount of Zn (118.93±10.55mg/Kg) was detected in the head part of O. acutipennis from Minneriya. The Pb, Cd, Cr, Cu and Zn concentrations detected in the head part of popular edible freshwater species, O. mossambicus, O. niloticus and E. suratensis were higher than the provisional tolerable weekly intake (PTWI) of Pb (0.025 mg/Kg), Cd (0.007 mg/Kg), Cr (0.1 mg/Kg), Cu (3.5 mg/Kg) and Zn (7 mg/Kg) specified by the FAO/WHO. Therefore, long-term consumption of these fish species especially the head parts may lead to accumulation of these heavy metals in tissues and lead to chronic diseases which may risk the health of consumers especially in the north-central province of Sri Lanka.
GSC Biological and Pharmaceutical Sciences, 2020
The worldwide increase in population, urbanization, and industrialization was affecting the natural aquatic environment in the form of pollution. The consumption of fishes as food has immense therapeutic and nutritional benefits. Heavy metal pollution of marine aquatic ecosystem occurring due to urban and industrial waste discharge, agricultural runoff and accidental spills of toxic chemicals is globally a rising concern and possesses a dangerous threat for human health due to their regular feeding habits. Humans consume fish as a dietary uptake without knowing the heavy metal accumulated from the polluted areas and are vulnerable to certain health risks. An attempt was made in the present investigation to monitor heavy metals concentration in coastal waters and edible marine fish Indian mackerel (Rastrelliger kanagurta) namely Arsenic (As), Lead (Pb), Cadmium (Cd), Mercury (Hg), Iron (Fe), Manganese (Mn), Copper (Cu), Zinc (Zn) in water and fish tissues (Gills and Liver) of Nelaturu, Krishnapatnam coastal areas. The extent of metal concentrations in the water and levels of heavy metals varied among the various tissues in the fish species studied and the concentrations of the metals found in fish gill, liver tissues were high. At this rate, consumption of marine fish from Nelaturu, Krishnapatnam may lead to heavy toxicity and other related health problems to human and other animals. Control measures are required to reduce aquatic heavy metal pollution in the Nellore coast.
We analysed concentrations of zinc, copper and lead in the muscle of two commercially important finfish species namely, Liza parsia and Liza tade in the western and central sectors of Gangetic delta region during 14 th to 19 th March, 2016 using Atomic Absorption Spectrophotometer. Metal accumulation followed the order Zn > Cu > Pb. Between the two species, the degree of metal accumulation was found to be in the order Liza parsia > Liza tade, which may be the result of difference in their food habit or degree of exposure to ambient media contaminated with heavy metals. Heavy metals in the edible parts of the investigated finfish species were compared with the permissible safety levels for human uses.