Trace metals in Shatt al-Arab River, Iraq
| Autor: | Jamal K. Abaychi, Ali A.Z. DouAbul |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
Environmental Engineering
Chemistry Ecological Modeling Metallurgy Trace element Sediment Pollution Shatt al arab law.invention Metal Simple linear regression analysis law visual_art Environmental chemistry Correlation analysis visual_art.visual_art_medium Atomic absorption spectroscopy Waste Management and Disposal Water Science and Technology Civil and Structural Engineering |
| Zdroj: | Water Research. 19:457-462 |
| ISSN: | 0043-1354 |
| DOI: | 10.1016/0043-1354(85)90037-5 |
| Popis: | The distribution of 10 trace metals Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, V and Zn have been determined along the northern section of the Shatt al-Arab River, Iraq. Analyses were carried out, employing a flameless AAS instrument. The mean concentrations of the dissolved species were as follows (expressed in μg l −1 ): 0.25 Cd, 0.9 Cu, 716 Fe, 1.3 Mn, 0.3 Pb, 0.2 V and 1.8 Zn. Mean concentrations of Cd, Co, Cr, Cu, Fe, Mn, Ni, Pb, V and Zn in the particulate matter were 55.2, 6.0, 188, 77, 31 472, 1731, 3807, 93, 207 and 77 μg g −1 respectively. In the exchangeable fraction of the sediment were 0.15, 5.5, 11.1, 11.9, 1625, 482, 42, 30.5, 25.7 and 6 μg g −1 , whereas in the residual were 0.025, 11.5, 96.1, 22, 5176, 258, 613, 3.9, 162 and 56.8 μg g −1 respectively. Thus, the exchangeable trace metals represent the following mean percentage of the total; 75% Cd, 33% Co, 10% Cr, 34% Cu, 24% Fe, 63% Mn, 7% Ni, 74% Pb, 14% V and 23% Zn. The concentration of Ni and V were relatively high, this was attributed to the petroleum-rich deposits of the region. The concentrations observed for other metals were lower or equal to those reported for control sites except for Pb which was slightly higher. The data obtained were subjected to simple linear regression analysis and expressed in the form of correlation coefficients. It was found that the inter-elemental relationships are rather complex. |
| Databáze: | OpenAIRE |
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