Heavy metals in raw milk and some dairy products at local markets

A total of seventy-five random samples of dairy products (15 each of
raw cow's milk, raw buffalo's milk, condensed milk, baby formula, and
milk powder) were collected from different markets and pharmacies at
Damanhour, Behera governorate, Egypt. All examined samples were
analyzed by Atomic Absorption Spectrophotometer to determine heavy
metals residues namely such as Lead (Pb), Cadmium (Cd), Aluminum (Al),
Chromium (Cr), and Nickel (Ni). The results obtained revealed that highly
toxic metals lead (Pb) and cadmium (Cd) were detected above the
recommended daily intake, While aluminum (Al), chromium (Cr), and
nickel (Ni) were detected below the recommended daily intake as Lead
levels in raw cow milk, raw buffalo milk, condensed milk, baby formula
and milk powder were (0.11 ± 0.038 , 0.14 ± 0.040, 0.20 ± 0.049, 0.21 ±
0.052, and 0.27 ± 0.054), Cadmium levels were (0.03 ± 0.021, 0.09 ±
0.037, 0.11 ± 0.044, 0.12 ± 0.036, and 0.17 ± 0.046), Aluminum levels
were (0.15 ± 0.078, 0.162 ± 0.062, 0.23 ± 0.077, 0.24 ± 0.086, and 0.26 ±
0.066), Chromium levels were (0.06 ± 0.05, 0.073 ± 0.04, 0.11 ± 0.046,
0.21 ± 0.062, and 0.20 ± 0.061), and Nickel levels were (0.00, 0.025 ±
0.015, 0.04 ± 0.03, 0.05 ± 0.023, and 0.093 ± 0.04), respectively. Public
health significance of heavy metals was discussed.