الفهرس 
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Abstract
Recently the problem of pollution has become a major threat to human health,
animal health and plant. Among these pollutants and the most dangerous to the public
health heavy metals that are packed with a lot of different parts of the globe. Meat
consumption had been identified as the major pathway of human exposure to heavy
metals. In this study, some undesirable metals as lead and cadmium and two trace
essential metals as copper and zinc were detected in many daily eaten meat products as
beef shawarma, canned beef meat, frozen beef burger, cooked beef burger and beef
luncheon in Qena city as well as measuring the effect of cooking on detection of their
residues. In this study, 100 samples (20 from each meat products) were collected from
different markets and restaurants in Qena city. Samples were analyzed by iCAP device
after its digestion.
In beef shawarma the concentrations of lead, cadmium, copper and zinc mean
residual levels were 1.59±0.65, 0.07±0.0038, 2.29 ±0.37 and 61.70±1.20 p.p.m,
respectively. The data revealed that 18(90%) samples showed lead concentration
exceeded the Egyptian standards permissible limits for lead. While, 14(70%) samples
showed cadmium concentration exceeded the Egyptian standards permissible limits for
cadmium. Furthermore, 20(100%) samples showed copper concentration within the
Egyptian standards permissible limits for copper. Finally, 1(95%) samples showed zinc
concentration exceeded the Egyptian standards permissible limits for zinc.
In canned beef meat the concentration of mentioned metals were 2.04±0.711,
0.034±0.004, 5.01±1.17 and 12.49±0.62 p.p.m, respectively. The data showed that 20
(100%) samples showed lead concentration exceeded the Egyptian standards permissible
limits for lead. While, 18 (90%) samples showed cadmium concentration within the
Egyptian standards permissible limits for cadmium. Furthermore, 19 (95%) samples
showed copper concentration within the Egyptian standards permissible limits forcopper. Finally, 20 (100%) samples showed zinc concentration within the Egyptian
standards permissible limits for zinc.