Pollution Research Paper

Vol. 36, Issue 3, 2017; Page No.(410-418)

ENVIRONMENTAL GEOCHEMISTRY OF IRON, COBALT AND NICKEL METALS POLLUTION IN SURFICIAL BOTTOM SEDIMENTS OF BRULLUS LAGOON, EGYPT

ABD EL-MONSEF AHMED EL-BADRY

Abstract

Brullus Lagoon is the biggest north Egyptian lakes. The lagoon has an area averaging 420 km². It is brackish and shallower water depth, It is sited between latitudes 31°25‘ and 31°35‘ N and longitudes 30°31‘ and 31°05‘ E. The pollution of surficial bottom sediment of the Brullus lagoon is indicative of both water and food web quality in general. The main objective of this study is assessment of environmental effects of Iron, Cobalt and Nickel metals. Fourteen samples were collected from surface water sample and bottom sediments sample among sites covering the Brullus Lagoon during summer 2014, in addition to seven bottom sediment sample collected from the sits near outlet of agricultural drains. One-gram powder of dried sample was digest into Teflon crucible by using mixture from (HNO3, HClO4 and HF). After near dryness HCl was dissolved the residue and diluted to 100 mL with distilled water. Collaborating analytical techniques have been employed to analyze group of environmental essential elements, including; Co, Fe and Ni. The organic carbon content is determined by using the rapid titration method. The present study documents pollution by Co and Ni, possibly as a result of using fertilizer. It observed that Fe content below contamination level. The Organic matter content ranged from 0.4% to 7.5% with an average 3.5%. A maximum values observed in the western and middle portion of the lake, where the water velocity is quite, and near northern area of the lake, where agricultural activity is prevalent. The territory around inlet and southeastern drain show considerable pollution by the studied heavy metals. The main reason for such pollution resulting from industrial activities and agricultural drains. The disregards of the anthropogenic activities are the main reason of pollution in the studied lagoon. Routine program for monitoring the abundance and distribution of sensitive and essential environmental metals in the studied lagoon should be enjoined.

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