THE EFFECT OF DUST EMISSION FROM CEMENT FACTORY ON METAL CONTENT OF SOIL AND CROP PARTS AND ON MORPH

The goal of this study was to see how dust from a cement plant in northwestern Mekelle affected soil fertility and the shape and yields of three frequently grown crops: wheat (Triticum aestivum L.), barley (Hordeum vulgare L.), and teff (Eragrostis tef.). Three top bulky soil samples were taken from three locations: 500 metres (Site-1), 1000 metres (Site-2) and 1500 metres (Site-3) from the western side of a cement industry, where dust is mostly blown by the wind. A fourth control soil sample was taken 6 kilometres distant from the facility in an undamaged region. The soil samples were utilised in a pot experiment at Mekelle University, which took place in a glasshouse. yield and morphological Standard scales were used to measure shoot, root, and spike lengths, as well as leaf area. AAS and UV spectroscopy were used to determine the concentration of main metals: Ca, K, Na, Mg, Mn, and trace elements: Cd, Zn, Cu, Pb, Ni, Cr, and Fe in soil and plant parts, respectively. When compared to the control site, the results demonstrated that dust emissions had a significant impact in raising the trace metals content in the soil and, as a result, the trace metals concentration of crop components. Both clinker feed and clinker, which make up the majority of cement industry dust, had higher Pb, Cu, and Cr levels. With the exception of Cr, the concentrations of the other trace elements (Pb, Cu, and Zn) were lower.

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