Table 1

Metals of El-Qalyubia drain, during the summer and winter seasons

SitepHCuFeMnZnCdCoPbNiCr
Summer season
17.800.0530.8460.8250.042Nd*NdNdNdNd
27.700.0130.7890.4790.221NdNdNdNdNd
37.800.0480.7430.4580.207NdNdNdNdNd
47.900.0340.5530.3600.108NdNdNdNdNd
57.800.0130.7190.1790.007NdNdNdNdNd
67.800.0110.6840.3050.008NdNdNdNdNd
77.800.0800.6410.3060.006NdNdNdNdNd
87.900.0060.4040.228NdNdNdNdNdNd
Limit*6.5–8.513220.03-0.10.1-
SitepHCuFeMnZnCdCoPbNiCr
Winter season
17.990.0740.9810.9080.134NdNdNdNdNd
27.800.0430.8650.6040.392NdNdNdNdNd
37.870.0680.9230.6940.403NdNdNdNdNd
47.800.0560.6930.5910.3160.002Nd0.0070.0030.002
57.830.0330.6890.2990.294NdNdNdNdNd
67.900.0310.8990.5790.209NdNdNdNdNd
77.790.0920.9050.5690.118NdNdNdNdNd
87.860.0290.4040.465NdNdNdNdNdNd
Limit*6.5–8.513220.03-0.10.1-

Note(s): *Limit according to Egyptian Ministerial Decree No. 92 of 2013 amending the Ministerial Decree No. 8 of 1982 on the executive Regulations of Law No. 48 of 1982 concerning the Protection of the Nile River and water channels from pollution

Nd** = not detectable. The detection limits are Fe (0.01 mg/L), Mn (0.002 mg/L), Zn (0.002 mg/L), Cu (0.001 mg/L), Cd (0.0005 mg/L), Co (0.0005 mg/L), Pb (0.001 mg/L), Ni (0.001 mg/L), Cr (0.0005 mg/L)

All values represent the average of three replicates

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