Occurrence of heavy metals in fish: a study for impact assessment in industry prone aquatic environment around Kolkata in India (original) (raw)
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Continental Journal of Environmental …, 2012
The levels of some heavy metals (Cu, Zn, Cd, and Pb) were determined in water, plankton, and fish (Liza aurata) collected from 5 sites in Lake Manzala. Metals in the water and fish exhibited a significant seasonal and regional variation, in which all metals attained their maximum value during summer, while the lowest levels were found during winter. The concentration of different metals in water, plankton, and fish tissues followed the same order: Zn > Cu > Pb > Cd. The mean concentrations of metals in the water were as follow: Cu, 0.055; Zn, 0.311; Cd, 0.020; and Pb, 0.022 mg/L. The Cd level in the water was found to be higher than the permissible limit recommended for drinking water. Metals in plankton were much higher than those of water and fish. Gills of the examined fish contained the highest concentration of all of the measured metals, while muscles retained the lowest. In spite of the contamination of Lake Manzala by heavy metals, the level of the metals in fish muscle (the edible part) did not exceed the recommended permissible limit and the fish is considered safe for human consumption.
Analysis of heavy metals in water, sediment and selected fishes of River Sutlej, Punjab, India
Journal of Environmental Biology
The study aimed to assess the influence of heavy metal pollution in river Sutlej around the industrial city of Ludhiana. Samples of water, sediment and commercially important selected fish species were collected before (S-1) and after (S-2) the confluence of Buddah Nallah in river Sutlej for the estimation of heavy matals using Atomic Absorption Mass Spectrometer, equipped with transverse graphite furnace tube for electro thermal determination of lead, copper, chromium and zinc. The water, sediment and fish samples collected from the site, S-2 showed higher concentration of heavy metals compared site S-1. All the metals studied were found within the permissible limit of different National and International agencies, except for the lead which was found above the permissible limit in fish, Wallago attu. The results reveal that river Sutlej around Ludhiana city is under severe threat of pollution due to the discharge of industrial effluents from the Buddha Nallah.
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.
Concentration of heavy metals in the water and fish tissues of the river ravi, Pakistan
The River Ravi has subject to severe disturbances due to contaminants discharge of untreated industrial wastes and domestic sewage. This study was planned to assess the status of heavy metals Copper (Cu), chromium (Cr), cadmium (Cd) and cobalt (Co) in water and indian major carp (Catla catla) collected from the sampling station, Baloki Headworks. The results showed significant differences among six fish organs viz. Gills, kidney, liver, skin, muscle and scales. Accumulation of Cu in all the six fish organs showed significant difference. Fish liver was the organ that accumulated significantly higher quantities of these metals followed by that of kidney and scales. The magnitude of heavy metals in both river stretch and tributary waters were Cu > Cr > Cd > Co while in the fish tissue the elements decreased in the order Cu > Cr >Co> Cd. The correlation coefficient between the metals toxicity of Catla catla body organs and water was positively significant. The result of this study indicated that the metals present in the river system were taken up by Catla catla through water, sediments and food, regardless of their biological needs, showed higher metal concentrations.
Heavy metals in water, sediment and three fish species of Dhaleshwari river, Savar
Bangladesh Journal of Zoology
The study was conducted to assess the pollution of five heavy metals, namely arsenic (As), lead (Pb), cadmium (Cd), chromium (Cr) and copper (Cu). Their concentrations in water and sediments as well as in three fish species such as Labeo rohita (herbivorous), Wallago attu (carnivorous) and Heteropneustes fossilis (omnivorous) were recorded. During wet and dry seasons As, Pb, Cd, Cr, Cu concentrations in river water ranged from the ‘below detection level (BDL)’- 0.0019, 0.3702 - 0.4163, 0.0285 - 0.0294, 1.204 - 1.36, 0.0315 - 0.0807 ppm and 0.0016 - 0.0180, 0.1305 - 0.1889, 0.0297 - 0.0309, BDL, 0.0381 - 0.0543 ppm, respectively. There was no significant seasonal variation in As and Cu conc. in river water but Cr and Pb conc. were significantly higher during the wet season and Cd conc. was significantly higher during dry season. During the wet and dry seasons As, Pb, Cd, Cr, Cu conc. in river sediments ranged from 3.67 - 7.13, 21.58 - 64.96, 1.36 - 1.72, 1126.66 - 1199.46, 45.91 - 11...
Toxicological & Environmental Chemistry, 2015
This study assessed heavy metals levels in four selected fish species, water and sediment from the Bontanga Reservoir. Methods: Samples were collected on weekly basis and analysed using standards methods. Results: Physico-chemical properties of the water were all within World Health Organization (WHO) limits except for turbidity. The study recorded cadmium concentration in the water sample the ranged from 0 to 0.01 mg L-1 that shows some were above WHO stipulated limits for potability. Heavy metal concentration in water was in the order Fe>Cr>Mn>Cu>Cd> Zn>Pb and in sediments Fe>Mn>Cr>Cu>Zn> Cd>Pb which showed that iron was more abundant. Conclusion: Cd and Cr were above WHO limits for potability which make the water unsafe for drinking without treatment. Heavy metals in the sediment were within Food and Agricultural Organisation (FAO)/WHO limit. Concentrations of heavy metals in the various species were within the recommended limit for fish and fish products. Hence, these metals have no immediate health threat on the consumers of fish and fish products from Bontanga Reservoir but will likely have adverse effects in the prolong consumption of the fish species since heavy metals accumulate. Periodic monitoring of heavy metals in Bontanga reservoir is recommended since the reservoir serves as a source of fish and water for all-year-round irrigational farming.
2022
The present work was designed to evaluate the Contamination of heavy metals in water is regarded as global crises with a large share in developing countries like Pakistan. In present study, health risk consequences of composition of heavy metal contaminated water and fish collected at Head Balloki (River Ravi) were evaluated. 3 samples of water were collected at six different sights of Head Balloki for each Pre and Post Monsoon. Fish samples were collected at some six sights and their gills, liver were removed for heavy metal analysis. This study reported that the Concentration of chromium Cr was found higher than the Nickel Ni in water Cr > Ni. On the other hand, in fish organ of Labeo rohita the concentration of Chromium Cr was higher than the Ni in Gills Cr > Ni and the concentration of Ni was higher than the chromium Cr in Liver Ni > Cr. All the samples were analyzed to determine the concentration of two heavy metals (Cr, Ni) using Spectrophotometer techniques. The data...
International Journal of Researches in Biosciences and Agriculture Technology, 2020
The concentrations of heavy metals (Cd, Cr, Pb, Ni and Zn) in sample water and organs (muscle, gills and liver) of fish Cirrhina mrigala of river Godavari, at Nathsagar Dam in Maharashtra were analyzed. There was an appreciable decrease in metal concentrations in sample water from site I to site II. The heavy metal concentrations in sample water was in the order Ni>Pb>Cd>Zn>Cr. The concentration of Nickel was 7.53 53µg/L and that of Lead was 6.2653µg/L. Accumulation of heavy metals in the organs of fish Cirrhina mrigala was found in the order gills>muscle>liver. In the gills, lead was found maximum (3.83 µg/g dry weight), whereas chromium was minimum (0.68µg/g dry weight). In the muscles, the values of lead was 2.59µg/g, comparatively chromium was 0.64µg/g. In the liver, lead, cadmium and nickel were more concentrated compared to zinc and chromium. The concentration of heavy metals accumulated in gills and liver was found in the order Pb>Cd>Ni>Zn>Cr and...
We present the results from a detailed study based on five metals (Cr, Cd, Zn, Pb and Fe) measured in four organs (gills, liver, intestine and muscle) of two fish species (Labeo rohita and Cirrhina mrigala) collected from Pulicat lake that receives effluents from industries located in north Chennai, southeast coast of India. The results show limited differences between the two species and organs as well as significant variations within the five analyzed metals. Although the metal concentrations measured in fish muscle are low, high levels of Fe and Pb were observed in the liver and gills followed by other organs of the two fish species. The concentrations of heavy metals in edible parts (muscle) of fish were within the permissible levels and are safe for the human consumption. However the results of the study clearly show the biomagnifications of metals in Pulicat lake.
Human and Ecological Risk Assessment: An International Journal, 2018
The city of Jamshedpur, nicknamed the “industrial capital of Jharkhand,” is one of the oldest industrial settlements in India, nestled amidst the mineral-rich Chota Nagpur plateau, with its diverse tribal population. Heavy metal contamination from industrialization and urbanization can pose a serious health risk to the resident population of the city. Metal concentrations in water and sediment of various water bodies (rivers, canals, and lakes) were determined using ICP-MS. Pollution indices indicate heavy metal contamination at Jamshedpur Urban Agglomeration, mainly because of Cr (23–1111.6 mg/kg), Hg (0.08– 4.11 mg/kg), and Pb (5.2–248 mg/kg). Labeo rohita and Punitus sarara, the two popular edible fishes, also have high concentration of Cr, Hg, and Pb. Health risk to human population due to consumption of metal contaminated edible fishes (L. rohita and P. sarara) was determined by target hazard quotient (THQ) and hazard index (HI). THQ value of fish consumption (most popular protein supplement in the area) was found higher for Cr and Pb when compared with previous literature on fish consumption. Also, HI value ranged from 1.4 to 3.9, suggesting that the children have higher health risks than adults, due to consumption of metal contaminated fishes (especially L. rohita).