When these toxic metals accumulated in the tissues of fishes as a result they. International national standards for heavy metals in food. Analysis and comparison of cyprinus carpio and labeo rohita from sardaryab, khyber pakhtunkhwa alimuhammadyousafzai,1 farhadullah,1 fathulbari,2 sumayyaraziq,1 mehreenriaz,1 khalidkhan,1 umarnishan,3 iramalamsthanadar,1 baseeratshaheen,1 mussarratshaheen,1 andhabibahmad1. However, data on heavy metal concentrations in fishes of the meghna river, especially in fishes of different age groups are limited.
Heavy metals contamination in river is one of the major quality issues in many fast growing. The intake rate of these heavy metals by humans through the consumption of fish causes serious health. Determination of heavy metal levels in fishes from the lower reach of the kelantan river, kelantan, malaysia. Bioaccumulation profile of heavy metals in the gills tissue. The order of heavy metals concentration in jama site khyber pakhtunkhwa pakistan to explore water and soil of damai stream and dams was. In the current research three sampling sites upstream, mid point and downstream were selected in.
Metals like iron, copper, zinc and manganese are required for metabolic activities in organisms, whereas arsenic, cadmium, chromium, mercury, nickel and lead exhibit toxicity so, these metals have been included in the regulations for hazardous metals marine fishes exposed to heavy metals have. The levels of six heavy metals cd, cr, cu, ni, pb, and zn in different tissues of three species of cultured marine fishes epinephelus areolatus, lutjanus russelli, and sparus sarba collected from three fish culture sites in hong kong were evaluated. Heavy metals mercury, arsenic, cadmium, plumbum in. The present study was conducted to investigate the contamination of water, sediments, and fish tissues with heavy metals in river panjkora at lower dir, khyber pakhtunkhwa, pakistan. Heavy metals resulting from human activities are the sources of pollution and are continuously released into aquatic and terrestrial ecosystems. Fishes mostly inhabit freshwaters such as lakes, streams, and rivers.
Heavy metal concentration in fishes from the coastal waters. Human health risks from heavy metals in fish of buriganga. The heavy metals cadmium, lead and mercury are common air pollutants, being emitted mainly as a result of various industrial activities. In the present study, some heavy metals cd, cr, cu, fe, ni and pb were seasonally determined in water, sediment and some tissues of cyprinus carpio from avsar dam lake, which is an important water source for irrigation and drinking in turkey. Jul 14, 2014 the present study was conducted to investigate the contamination of water, sediments, and fish tissues with heavy metals in river panjkora at lower dir, khyber pakhtunkhwa, pakistan. Analysis of heavy metal concentrations in tilapia fish. In the case of the other metals, the highest levels were found, as follows. In light of anthropogenic actions has become a matter of concern these facts the existing state of knowledge important for over the past few decades 1. The levels of heavy metals varied significantly among fish species and organs. Analysis of physicochemical parameters and heavy metals of. The heavy metals cr, cd, ni, zn concentration in the gills tissue of wallago attu.
Lawrence 1 pg and research department of biochemistry 1, st. We examined the bioaccumulation of 04 heavy metals cr, cd, ni, zn in the gills tissue of fresh water fish mulley, wallago attu collected from 4 different polluted sites of river kalpani in kpk province pakistan, during july 2012 to february 20. Heavy metals contamination is a serious threat because of their toxicity, biomagnification and bioaccumulation in food chain demirezen and uruc, 2006. Assessment of heavy metals in water, fish and sediments from. Analysis of heavy metals in water, sediments and fish samples of madivala lakes of bangalore, karnataka. Assessment of heavy metals in river kunhar at naran khyber. Determination of heavy metal concentrations in six species. Heavy metals are known to cause deleterious effects on human health through food chain. Moreover, the permissible limit of these heavy metals. Determination of heavy metal levels in fishes from the. Harmful effects of heavy its ex situ and in situ conservation and management.
Season of the current survey was carried out in river dor at fishes. An iron clog in to fish gills and it is lethal to fishes, when these fishes are eaten by human leads to the major health issue 24. Bioaccumulation of heavy metals in fish tilapia zilli and. Concentrations of heavy metals and minerals in poultry eggs. On the other hand, there were great variations among heavy. Essential metals are taken up from the water or sediment for normal fish metabolism. The samplings were carried out from june to november 2014. A seasonal study was conducted to assess the concentration of heavy metals in aquatic systems that receive water from the karstveld aquifer.
In the present study, the concentrations of heavy metals i. Results and discussion aquatic environment are badly affected by the contamination of heavy metals such as zinc, copper, cadmium, lead, chromium and manganese respectively. Concentrations of heavy metals and minerals in poultry. Although the atmospheric levels are low, they contribute to the deposition and buildup in soils. The concentrations of cd and pb obtained are lower for water and higher for sediments from the work on a water body used for irrigation in keffi. Among the contaminants, heavy metals should be highlighted due to the consequences of their bioaccumulation in aquatic ecosystems nadmitov et al. Determination of selected heavy metals and iron concentration.
The concentrations of heavy metals were found to be elevated in the wet season p kpk, pakistan tallat munir, maimmona saddique, hameed ur rehman, shaista ramazan, tahir azeem, ijaz ahmad abstract this study was conducted from january 2014 to october 2015 to find out accumulation of heavy metals this purpose three samples of fishes. Concentration of heavy metals in fish sample selected fram changhoz dam karak. Assessment of heavy metals in water, fish and sediments. Heavy metals are persistent in the environment and are subject to bioaccumulation in foodchains. Distribution of heavy metals in valuable coastal fishes. The harmful effect of trace elements when consumed above the recommended limit can be toxic acute, chronic or subchronic, and heavy metals can be neurotoxic, carcinogenic, mutagenic or teratogenic. Pollution of heavy metals in river dor at jama khyber. Bioaccumulation of mercury, cadmium, zinc, chromium, and lead. Determination of heavy metal accumulation in fish species. Analysis of heavy metals in fish,water and sediment from bay. Analysis of heavy metals in water and fish tilapia sp. Heavy metals in water, sediment and some fishes of.
The essential metals are copper, iron, zinc, manganese, while mercury, lead and cadmium are highly toxic metals. Concentrations of heavy metals namely cu, zn, pb, ni, mn and cd were detected in tissue of six freshwater fish species hampala microlepidota, barbonymus schwanenfeldii, mystacoleucus marginatus, hemibagrus nemurus, cyclocheilicthys apogon and oreochromis niloticus from galas river and beranang mining pool. Figure 1 represents the level of six selected heavy metals ni, cu, zn, pb, fe and cd in the fish species of changhoz dam, in which the fe have the highest level in all metals in the scales of hypophthalmichthys nobilis bighead. Heavy metals causing toxicity in animals and fishes pandey govind 1 and madhuri s. Generally, the presence of contaminants in fish is a result. Samples from tasik mutiara, puchong 347 despite the fact that metal biomagnification is influenced by metal assimilation, pollutants can still move through the various trophic levels in an ecosystem 3 and results in higher concentrations of the substance than. Researcharticle bioaccumulation of some heavy metals. Health risks of heavy metals from longrange transboundary. Hcl and preserved in a refrigerator till analysis for fe, zn, mn, cu, cd and pb parker, 1972. Aug 25, 2012 metals enter the aquatic environment from various natural and anthropogenic sources. Tor putitora, the extinct fish species in river swat. Furthermore, it is important to observe the levels of heavy metals in fishes to get some idea about the safety of fish protein supplied from that river and to understand its harmful effects among individuals, popula.
Heavy metals analyzed in water and soil samples of all the four dams indicated that among the seven heavy metals tested, fe was maximum in concentration, followed by zn, cu, pb, ni, cr and cd. Pdf pollution of heavy metals in river dor at jama khyber. Heavy metal levels in water, sediment and fish samples were analyzed by inductively coupled. The result was in agreement with previous investigations on similar fishes from some nigerian rivers as shown in. Pollutants disturb the food chain 17 and heavy metals, especially iron affects the respiratory system of fishes. Analysis of heavy metals in water, sediments and fish. Analysis of heavy metals in water, sediments and fish samples. Heavy metal accumulation in water, sediments and fishes of. Water, sediments, and fish shizothorax plagiostomus samples were collected from september 2012 to january 20 at three different sites upstream site at sharigut, sewage site at timergara, and downstream site.
Metal contaminated water leads to hair loss, liver cirrhosis, renal. Heavy metal analysis in fishes and water of changhoz dam. The soluble form of heavy metals is thought to be more harmful because it is more easily transported and more readily available to aquatic organism. Heavy metals like cu, zn, and mn are essential for the metabolism of organisms, including fish, while cd and pb have no known role in biological systems and are toxic in elevated concentrations. This process is the reverse of the emission of light by atoms excited by being exposed to energy e. Exploration of heavy metals in usman k, rehman hu, khudadad s, pervaiz river kabul at marble factory kond khyber k, ali szua, maqsood mj, jawad sm, din au, pakhtunkhwa, pakistan. In the present study we found that cr and fe were in higher concentrations followed by zn in different organs of the cyprinus carpio. Analysis of heavy metal concentrations in tilapia fish oreochromis niloticus from four selected markets in selangor, peninsular malaysia. Human health risks were evaluated from consumption of heavy metal contaminated fish from buriganga river in bangladesh.
Heavy metal concentration in fishes from the coastal. Main analytical techniques used for elemental analysis in. Because of high consumption of fish, the heavy metals from the fish sample will penetrate in human body. Mining activities in the karstveld, specifically in the tsumebgrootfonteinotavi area, may potentially result in heavy metal pollution of water sources. As a consequence, fish are often used as indicators of heavy metals contamination in the aquatic. Heavy metal content in fish gonads was observed to be sex dependent. The analysis of heavy metals in sediments indicated that among the six heavy metals tested, fe was maximally accumulated, followed by ni, cu, cr, pb and cd.
Bioaccumulation profile of heavy metals in the gills. Measurement of heavy metals zoology studies 56, 22722274. International national standards for heavy metals in food dr yy choi chemist. Heavy metal concentrations were found to decrease in sequence of the cyprinus carpio. Determination of selected heavy metals and iron concentration in two common fish species in densu river at weija district in grater accra region of ghana tiimub, benjamin makimilua.
A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. Assessment of heavy metals pollution in water and sediments and their effect on oreochromis niloticus in the northern delta lakes, egypt 478 water heavy metals in water samples were extracted with conc. The present assessment was carried out to explore the amount of heavy metals in river kunhar at naran sampling station khyber pakhtunkhwa, pakistan. Evaluation of heavy metals in river kabul at khazana sugar. Levels of selected heavy metals in drinking water of peshawar city 649 the aas method is based upon the fact that atoms in their ground state can absorb light of a particular energy i. Heavy metal bioaccumulation in edible fish species from an. Dilkusha, lucknow 226 002, india 2applied biology department, 3department of fisheries and aquaculture. Journal of environmental biology september, 2010 heavy metals in fish species from lotic freshwater ecosystem at afikpo, nigeria c. The spleen, kidneys, and liver were found to accumulate the highest amounts of fe. Rapid urbanization and industrial development during last decade have provoked some serious concerns for the environment. Whole body of five fish species puntius ticto, puntius sophore, puntius chola, labeo rohita and glossogobius giuris were analyzed which contained various concentrations of cd, as, pb. Bioaccumulation of mercury, cadmium, zinc, chromium, and. Fishes can accumulate heavy metals in their tissues at concentrations greater than the ambient water and pose a health threat to.
Odoh 4 1national bureau of fish genetic resources canal ring road, p. Mercury, lead and cadmium in fishery and aquaculture products. The results revealed some dissimilar pattern in terms of detection limits of the various heavy metals in catfish. Abida begum 1, harikrishna s 2, irfanulla khan 3 1department of chemistry, p. Analysis of heavy metals in fish,water and sediment from. Determination of heavy metal accumulation in fish species in. Pdf heavy metal analysis of water and soil of district. If water from these origins region of their respective areas are taken for drinking purposes, the physiological effects damages to human health have been noted. Water, sediments, and fish shizothorax plagiostomus samples were collected from september 2012 to january 20 at three different sites upstream site at sharigut, sewage site at timergara, and.
Distribution of heavy metals in valuable coastal fishes from. Heavy metals causing toxicity in animals and fishes. Long term exposure even to low concentrations of heavy metals can cause many adverse health effects and even toxicity 8. S school of engineering,hosur road, near electronic city, bangalore100,india.
Contamination of aquatic ecosystems by heavy metals can be confirmed in water, sediment, and organisms forstner and wittman 1983. Bioaccumulation of some heavy metals in tilapia fish. Pdf effect of different heavy metal pollution on fish. Heavy metal concentrations in different organs of fishes. Typically, heavy metals occur in the earths crust in rather low concentrations between the low ppb ranges noble metals and up to 5% iron. Fishes play a vital role in aquatic food web and chain which are very sensitive to pollution. Heavy metal concentrations in marine fishes collected from. Topi, hund and kund of river indus at swabi, kpk pakistan in the month of february, march, and april 2016 respectively. Heavy metals entered in bodies of fishes by three potential ways. Pdf pollution of heavy metals in river dor at jama. Analysis of heavy metals in water and fish tilapia. Distribution of metals fe, mn, zn, cu in fish tissues in.
Distribution of heavy metals in valuable coastal fishes from north east coast of india. If these water systems are polluted with trace and heavy metals, fishes migrate to the areas where there is minimum contamination in order to survive 1. Heavy metals mercury, arsenic, cadmium, plumbum in selected marine fish and shellfish along the straits of malacca abstract. This is dangerous, because unlike other pollutants mainly organic, metals are not degraded or eliminated from the ecosystem. Whole body of five fish species puntius ticto, puntius sophore, puntius chola, labeo rohita and glossogobius giuris were analyzed which contained various concentrations of cd, as, pb, cr. The concentrations of heavy metals cu, zn, pb, cd, fe and mn were measured in the liver, gills and muscles of fourteen benthic and pelagic fish species collected from three main landing areas shalateen, hurghada and suez in the egyptian red sea. Pdf assessment of heavy metals in river kunhar at naran.
Mn in skin, gills, and gonads, zn in digestive tract and gills, cu in liver. Heavy metals mercury, arsenic, cadmium, plumbum in selected. Heavy metals in fish species from lotic freshwater. Heavy metals accumulate in fishes via water, sediments, food such as algae upon which both herbivorous and omnivorous fishes feed 14, 27. Assessment of heavy metals in fishes ictalurus punctatus. Bioaccumulation of heavy metals in some tissues of fish in. Bioaccumulation of heavy metals in fish tilapia zilli and clarias gariepinus organs from river benue, north.
Concentrations of heavy metals detected in the liver, gill and muscle samples showed different capabilities for accumulating. Determination of heavy metal levels in fishes from the lower. Tahir azeem1, hameed ur rehman2, kinza zarin3, 1department of zoology, kohat university of science and technology26000, kpk, pakistan. Metal pollution problems in the fish culture sites were serious, as reflected by the high metal concentrations recorded in sea water. It can be stated that each sector including food processing, industrial, pharmaceutical, and dredging. Level of heavy metals in marine ecosystem has been intensively studied during recent years as these hazardous substances could be accumulated in the biota. Full length research paper heavy metal concentration in. Heavy metal analysis in fishes and water of changhoz dam district karak, kpk, pakistan tallat munir, maimmona saddique, hameed ur rehman, shaista ramazan, tahir azeem, ijaz ahmad abstract this study was conducted from january 2014 to october 2015 to find out accumulation of heavy metals this purpose three samples of fishes.
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