Seasonal Variation of Heavy Metal (Pb) in Fish (Liza aurata), Sediment and Water Samples from the Gomishan Wetland

Document Type : مقاله کوتاه

Authors

1 Faculty of Agriculture and Natural Resources Azadshar branch, Islamic Azad University, Azadshahr, Iran

2 Faculty of Agriculture and Natural Resources, Azadshar branch, Islamic Azad University, Azadshahr, Iran

Abstract

The pollution of aquatic ecosystems with heavy metals has always been a major concern for the aquatic organisms and human health. Measuring the levels of contaminants such as heavy metal (Pb) accumulated along the food chain (fish) and then transmitted to the human body is of particular interest. Concentrations of heavy metal (Pb) were measured in the water, sediment and fish species (Liza aurata) from the Gomishan Wetland, Iran. Samples of water, sediment and fish were collected during two periods: summer (2013) and winter (2014). The result revealed thatPb concentration was varied significantly among sediment, water and fish body, the average Pb concentrations in sediment, water and fish in both seasons was in the order sediment > fish >water, Pb concentration was varied significantly among gills, liver and muscle tissues of fish samples in any station and in both seasons was in the order gill > muscle >liver. These values were lower than the established standard for aquatic environment by W.H.O and F.A.O. The results indicated that the consumer of fish and water from the stream is not at risk of being poison by this metal.

Keywords

References

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Environmental Sciences
Volume 13, Issue 2
July 2015
Pages 49-56

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