The indirect analysis by animals and human are widely used to determine environmental toxicity. This approach is appreciated
because it?s not invasive and gives information about kinetic bioaccumulation and biomagnification of pollutants. We have
conducted a study to evaluate incidence of anthropic activity around aquatic area in the northwest of morocco. Analyses were
focused on retinoids determination in blood and liver in fish because of their close links with polychlorinated pollutants.
Bachir El Bouhali has completed his Ph.D from Ibn Tofail University, School of Science, Morocco. He was an expert of forensic science at the service
of toxicology and drugs. Actually, he is Professor Researcher and conduct studies about human health and toxicology. He has many papers and
chapters in books. He is member of many national and international scientific organizations.
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