Laboratory;
Valuation;
of;
Human;
Actions;
for;
Environmental;
Protection;
and;
Enforcement;
in;
Public;
Health;
Department;
ofBiology;
Environment;
Faculty;
Science;
University;
Abou;
Bakr;
BelkaM;
Tlemcen;
13000;
Algeria;
Products;
Research;
Belka~d;
Tlemeen;