... 36,00 0-4 5,000 47,00 0-6 3,000 56,00 0-5 8,000* Mn 90 0-2 ,000 60 0-1 300 1,30 0-1 ,900 Ni 1 0-3 3 1 5-2 6 9-1 4 10. 2-1 4.5 Pb 1 0-1 7 1 3-8 8 1 6-2 2 1 7-2 3 Zn 5 9-1 10 11 0-3 10 9 0-1 20 10. 6-1 8.3** *: one abnormal sample was excluded. ... for the northwest part This study This study This study Hallare et al, 2005 Cr 1 2-4 4 2 7-4 7 1 1-1 9 13. 2-1 5.6 Cu 3 3-1 01 6 0-1 70 12 0-1 40* 86. 9-1 16.9 Fe 36,00 0-4 5,000 47,00 0-6 3,000 56,00 0-5 8,000* ... mgZn/kg based on the uniform distribution of these metals in the sediments of the lake. The higher concentration in the northwest part of the lake is probably due to reverse flow of the polluted...