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Table 8 Statistical analysis of heavy metals during 2010, 2012, and 2015

From: Monitoring of the changes in potential environmental risk of some heavy metals in water and sediments of Burullus Lake, Egypt

Year Statistical analysis Fe Mn Zn Cu Ni Cr Pb Cd
2010 Min 95 35 48 8 1 1 12 1.6
Max 430 99 552 33 10 13 68 8.5
Average 263 64 252 23 4 5 45 4
St. dv 234 94 174 41 18 22 58 19
2012 Min 96 13.5 27.7 7.2 6.6 3.3 31.2 0.3
Max 272 71.5 190.9 199.8 14.5 8.6 91.5 7.7
Average 145 45 80 47 9 5 41 3
St. dv 182 68 72 72 23 20 47 16
2015 Min 100 13 54 18 1 1 22 1.1
Max 230 39 246 124 10 12 78 2.5
Average 148 22 108 68 4 5 46 2
St. dv 134 34 74 70 19 20 48 17