Abstract
Many leather processing industries in Sialkot, Pakistan, discharge their wastes freely into the environment which then enters nearby water bodies. Irrigation practices with these polluted waters pose a great threat to the soil quality. Hence, the soils and effluent waters of five famous leather processing sites were evaluated for the presence of As, Cr, Cd, Ni, Zn, Mn, Mg, Na, K, and Ca. High mean concentrations of As (112.6 mgkg-1), Cr (45.9 mgkg-1), Cd (2.0 mgkg-1), Ni (58.2 mgkg-1), Zn (117.6 mgkg-1), Mn (12.8 mgkg-1), Mg (34,511 mgkg-1), Na (16,292 mgkg-1), K (1765 mgkg-1), and Ca (4387 mgkg-1) were found in soils at our study sites. Effluents were found to be highly acidic with high TDS content and high EC values. Index of Geoaccumulation (Igeo) confirmed the extremely toxic nature of these soils. Plants growing at these sites also showed high concentrations of As, Cr, and Cd in their leaves.
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