Assessment of zinc, cadmium, nickel, lead and chromium concentrations in water, sediments and different tissues of Cyprinus carpio, from Kalpani stream Mardan Khyber Pukhtunkhwa, Pakistan

作者：Gulfam Naila; Zahoor Muhammad^*; Khan Farhat Ali

来源：Desalination and Water Treatment, 2017, 63: 96-102.

DOI：10.5004/dwt.2017.20138

• Heavy metals
• Water
• Sediments
• Common carp

In this study the accumulation of trace metals like zinc (Zn), cadmium (Cd), nickel (Ni), lead (Pb) and chromium (Cr) were determined in water, sediments and different tissues of common carp, Cyprinus carpio collected from Kalpani Stream Mardan. The accumulation of zinc was highest in gills (7.343 mu g/g)> intestine (4.833 mu g/g)> liver (3.339 mu g/g)> skin (2.068 mu g/g)> sediments (1.745 mu g/g)> muscles (1.738 mu g/g) while in water, it was below detectable level. Similarly cadmium accumulation was highest in intestine (0.02 mu g/g)> water (0.0189 mu g/ml)> skin (0.01 mu g/g)> sediments (0.010 mu g/g)> gills (0.009 mu g/g)> liver (0.0002 mu g/g) while in muscles it was below the level of detection. Likewise the nickel concentration was in the order of sediments (3.325 mu g/g)> intestine (0.099 mu g/g)> skin (0.035 mu g/g)> gills (0.008 mu g/g)> muscles (0.0025 mu g/g), while in water and liver it was below detectable level. The accumulation of lead was highest in sediments (0.045 mu g/g)> skin (0.015 mu g/g)> muscles (0.0016 mu g/g) while in water, intestine, liver and gills it was below the level of detection. Similarly chromium accumulation was highest in sediments (0.803 mu g/g)> gills (0.419 mu g/g)> skin (0.398 mu g/g)> intestine (0.261 mu g/g)> muscle (0.057 mu g/g)> liver (0.025 mu g/g) while in water it was below the detectable level. Comparing the values of Zn, Cd, Ni, Pb and Cr determined during our studies with that of FAO 1989, WHO 2004 and U.S Recommended daily dietary Allowance (RDA 1989) for metals supplied by a 100 g of fish muscle shows that, our observed values did not exceed the set values.

• 出版日期2017-2