DETERMINATION OF TRACE METALS CONCENTRATION IN INTERESTIAL WATER AND SEDIMENTS FROM UREJE RIVER IN ADO EKITI, EKITI STATE.
The concentration of trace metals in water and sediment from Ureje in Ado – Ekiti, Ekiti state were studied. An investigation into the concentration and distribution of Pb, Zn, fe, Mn, Cu, Cr, and Cd in water and sediment was under taken with a view to evaluate the relationship of these metals in the two matrices and to find the suitability of the water for domestic purposes. Cd was not detected in any of the sample while other element present are more concentrated in the sediment than the water sample.
In general, concentration of iron was found to be most abundant in the sediment with value 400.83ppm, followed by zinc with value of 27.98ppm while all other metals present are in little amount. Also, the concentrations of iron and zinc in the water samples range from 0.ppm while all other the water sample ranges from 0.1ppm – 0.2ppm while all other metals were absent.
TABLE OF CONTENT
Table of content
List of table
Aim and objective of the work
Trace metal in rivers sediments
Metals as a water pollutants
Sources of trace metals in aquatic system
Detrimental effect of some trace metals
Economic importance of trace metals
Materials and method, sampling
Results and Discussion
CONCLUSION AND RECOMMENDATION
LIST OF TABLE
Table 3.1 wavelength of some trace metals.
Table 4.1 Trace metals concentration in water in PPM of the samples.
Table 4.2 Trace metals concentration in sediment in PPM of samples.
Water is man’s most precious resources as it plays many important roles water is absolutely essential to life, man uses water not for drinking and culinary purposes but also for bathing, wasting, laundning etc. As a result water supplies of good quality continue to be developed and extended on an emergency basis (Camp and Mersenve, 1994). The estimated 1200 million people lack a satisfactory on safe water supply (Pickening and Owen, 1997) water is a colourless liquid at atmospheric pressure, it freezes at 0OC and boils at 100OC with, a density of 1g/cm3 or 1000kglm3 (Van Den Beng, 1984). It cover about 80O/0 of the earth’s surface and dissolves almost everything to certain extent. Its availability in adequate supply and suitable purity is essential to any civilized community.
Natural water contains some impurities whose nature and amount vary with sources of the water, due to this fact in any river system an understanding of the concentration and fate of trace metals is extremely important in addressing their impact on the regional environment.
The important of good quality water to the existence of mankind cannot be over emphasized. The need for the development of water has become more urgent than before, fortunately in many countries both the government and private organization are beginning to appreciate this fact and began to take positive measure such as provision of fund for research work.
Also water body could also be developed to support the fishing industry for the provision of recreational facilities and for scientific research among other on the other hand improper of lack of management of the water body could result in heath hazard and economic loss. However, in order to prevent this and maximize benefits, a sound knowledge of physic chemical aspect of the water it self, as well as that of the fauna and flora is needed.
Over the past years, a number of data have been published on atmosphere trace metal pollution. Human activities contribute for more than the emission from natural sources. (Poilitel et al; 1997). However, concentration ranges of 0.1 – 03mg/eylc from the most remote region of the world to industrial urban areas (Taylor, 1988).
Metals are introduced into our aquatic system as contaminants through several ways which includes weathering of weeks and soils dissolution of acrosol particles of the atmosphere and from several human activities involving the minting processes and the use of metal base materials (Ipinmonoti et al; 1993, A et al; 1993, Adeyeye, 1994 and Asaolu et al, 1997). Metals after entering the water may be precipitated absorbed or solid surfaces remain soluble, suspended in water or may be taken up by plant and animals and eventually accumulated in marine organism that are consumed by human being.
Furthermore, metals are generally, toxic if the exposure level is very high as to expressed the tolerable maximum permission level (Kenstan, 1995 and Forstner, 1995) Despite the toxicity associated with some mineral. It is not unreasonable to expect that some such as lead and cadmium are essential.
The fact that contamination could arise anytime due to the dynamic nature of our aquatic system most importantly dams and lakes, from time to monitoring of our aquatic system is highly essential accurate determination is important because certain element are needed only in trace amount function as constituent on as activator of enzymes.
Aims and Objectives of the Work
The presence of the metal pollutants in fresh water is known to disturb the balance of the aquatic ecosystem.
The need to assess the state and quality of the Ureje river in Ado – Ekiti and the sediment in terms of its metallic load becomes imperative since water from the river and the dam constructed from it is being used for domestic purpose and fishing activity by people living in the catchments area in view of the health implications that may act across the food strata due to the presence of some toxic metals in aquatic system.
This research work reports the concentration of trace metals (zinc, iron, lead, manganese, chromium, copper and cadmium) in water and sediments from Ureje rivers.
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