Vertical Distribution of Cadmium and Lead on Soils Affected by Metropolitan Refuse Disposal in Owerri, Southeastern Nigeria

سال انتشار: 1389
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 716

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شناسه ملی سند علمی:

JR_IJEE-2-1_008

تاریخ نمایه سازی: 1 اردیبهشت 1393

چکیده مقاله:

The authors investigated distribution of cadmium (Cd) and lead (Pb) in soil profile pits affected by municipal solid wastes in Avu dumpsite in Owerri, Southeastern Nigeria in 2010. Transect soil survey techniquewas used in aligning profile pits for field studies and sampling. Standard procedures were used in digging,describing and sampling from profile pits. Sieved soil samples were subjected to laboratory analyses and datawere analyzed statistically using coefficient of variation measured in percentages. Results showed higher values of % CV in silt and clay contents. Variability of clay increased from dumpsite (CV=43.77 %) to moderately dumped site (CV=62.73%) decreased in slightly dumped side (20.98%). Highest mean values of organic matter(26.8 g/kg) and pH water (5.7) were reported in heavily dumped site. Organic Matter showed very significantpositive relationship with Cd (r = 0.92; p = 0.01) and Pb (r=0.97; P = 0.97). There is need to include more soil attributes; results of which should be subjected to multi-variate techniques for more reliability and confidence especially in field applications

کلیدواژه ها:

Biotoxicity % Profile pit % Urban wastes % Waste disposal % Tropical soils

نویسندگان

e.u Onweremadu

Department of Soil Science and Technology,Federal University of Technology, P.M.B. ۱۵۲۶ Owerri, Nigeria

j.u Amaechi

Department of Soil Science and Technology,Federal University of Technology, P.M.B. ۱۵۲۶ Owerri, Nigeria

B.N Ndukwu

Department of Soil Science and Technology,Federal University of Technology, P.M.B. ۱۵۲۶ Owerri, Nigeria