الفهرس 
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Abstract
Polycyclic aromatic hydrocarbons (PAHs) are chemical
compounds produced from incomplete combustion of charcoal;
these compounds may present in some types of food and have
public health importance.
Heavy metals may arise from natural geological sources or
human activities (industrial, mining and agricultural). The vast
majority of toxic metals fall into the category of environmental
contaminants and produce sever disability in humans.
This study was conducted to survey the extent of the
presence of residues of 16 of PAHs in raw, pan-fried, charcoalgrilled
and foil-grilled meat samples in both cattle and sheep meat
and some heavy metals as Pb, Cd, and Al in the same samples.
A total of 80 samples of both beef and sheep (40 for each),
were cooked by different methods of cooking including raw, panfrying,
charcoal-grilling and charcoal grilling with aluminum foils
samples (10 for each, for both beef and mutton) were collected from
different restaurants in Zagazig city, El Sharkia Governorate, Egypt
and prepared for detection of 16 polycyclic aromatic hydrocarbons
(PAHs) compounds residues and for detection of heavy metals
(lead, cadmium and aluminum).
I- polycyclic aromatic hydrocarbons (PAHs):
In cattle:
The results of PAHs indicated that:.