Seasonal Variation of Trace and Heavy Metals in Agricultural Soils around Tummalapalle Uranium Mining Site

摘要

Assessment of seasonal variation in concentration of trace and heavy metals e.g., B, Ca, Cu, Fe, K, Mg, Mn, Mo, P, Zn, As, Cd, Pb, Se and T1 in agricultural fields (soils) around Tummalapalle uranium mining site, Pulivendula, Kadapa district, have been undertaken up during two major seasons of Andhra Pradesh. This was carried out mainly to assess the environmental pollution status of the soil around Tummalapalle uranium mining site. The soil samples were analyzed for trace and heavy metals using inductive coupled plasma optical emission spectroscopy (ICP-OES). The mean concentration range of B: 0.087-0.21 mg/kg; Ca: 40.43-119.9 mg/kg; Cu: 2.16-8.17 mg/kg; Fe: 103.2-222 mg/kg; K: 62.15-151.1 mg/kg; Mg: 25.7-46.95 mg/kg; Mn: 3.37-5.84 mg/kg; Mo: 2.58-5.41 mg/kg; P; 0.59-2.44 mg/kg; Zn: 0.14-0.29 mg/kg; Pb: 0.049-0.078 mg/kg found during pre-monsoon season period and B: 0.22-0.42 mg/kg; Ca: 78.7-124.62 mg/kg; Cu: 2.48-6.42 mg/kg; Fe: 194-360 mg/kg; K: 72.64-134.4 mg/kg; Mg: 32.72-56 mg/kg; Mn: 1.76-2.5 mg/kg; Mo: 0.11-0.14 mg/kg; P: 3.03-8 mg/kg; Zn: 0.3-0.16 mg/kg; and Pb: 0.02-0.12 mg/kg assessed in post monsoon season. During the assessment, As, Cd, Se and Tl could not found in both seasons.