Concentration of 5 heavy metals (Cu

Concentration of 5 heavy metals (Cu, Cr, Ni, Cd, Pb) were studied in the soils around Perlis, to assess heavy metals contamination distribution due to industrialization, urbanization and agricultural activities. Soil samples were collected at depth of 0-15cm in eighteen station around Perlis.The soil samples (2mm) were obtained duplicates and subjected to hotblock digestion and the concentration of total metal was determined via ICP-MS. Overall concentrations of Cu, Cr, Ni, Cd and Pb in the soil samples ranged from 0.38-240.59, 0.642-3.921, 0.689-2.398, 0-0.63 and 0.39-27.47 mg/kg respectively. The concentration of heavy metals in the soil display the following decreasing trend: Cu>Pb>Cr>Ni>Cd. From this result, found that level of heavy metal in soil near centralized Chuping industrial areas give maximum value compared with other location in Perlis. The Pollution index revealed that only 11% of Cu and 6% of Cd were classes as heavily contaminated. Meanwhile, Cu and Pb showed 6% from all samples result a moderately contaminated and the others element give low contamination. Results of combined heavy metal concentration and heavy metal assessment indicate that industrial activities and traffic emission represent most important sources for Cu, Cd and Pb whereas Cr, Ni mainly from natural sources. Increasing anthropogenic influences on the environment, especially pollution loadings, have caused negative changes in natural ecosystems and decreased biodiversity.

ผลลัพธ์ (มาเลย์) 1:

Kepekatan 5 logam berat (Cu, Cr, Ni, Cd, Pb) telah dikaji dalam tanah di sekitar Perlis, untuk menilai berat pengedaran pencemaran logam akibat perindustrian, perbandaran dan aktiviti pertanian. Sampel tanah telah dikumpulkan di kedalaman 0-15cm dalam lapan belas stesen sekitar Perlis.The sampel tanah (2mm) telah diperolehi salinan dan tertakluk kepada hotblock penghadaman dan kepekatan jumlah logam ditentukan melalui ICP-MS. Kepekatan keseluruhan Cu, Cr, Ni, Cd dan Pb dalam sampel tanah adalah antara ,38-240,59, 0,642-3,921, 0,689-2,398, 0-0,63 dan 0,39-27,47 mg / kg masing-masing. Kepekatan logam berat dalam tanah memaparkan trend berikut berkurangan: Cu> Pb> Cr> Ni> Cd. Daripada keputusan ini, didapati bahawa tahap logam berat dalam tanah berhampiran kawasan perindustrian Chuping berpusat memberikan nilai maksimum berbanding lokasi lain di Perlis. Indeks Pencemaran mendedahkan bahawa hanya 11% daripada Cu dan 6% daripada Cd adalah kelas yang banyak tercemar. Sementara itu, Cu dan Pb menunjukkan 6% daripada semua sampel yang menyebabkan pencemaran rendah sederhana tercemar dan elemen lain memberikan. Hasil gabungan kepekatan logam berat dan penilaian logam berat menunjukkan bahawa aktiviti perindustrian dan pelepasan trafik mewakili sumber yang paling penting bagi Cu, Cd dan Pb manakala Cr, Ni terutamanya daripada sumber semula jadi. Meningkatkan pengaruh antropogenik ke atas alam sekitar, terutamanya beban pencemaran, telah menyebabkan perubahan negatif dalam ekosistem semula jadi dan biodiversiti menurun.