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In Senegal as everywhere in Africa, apiculture is a branch of agriculture that can help people from rural and remote villages to diversify their activities and generate incomes. Honeybees are also involved in the pollination services process in agriculture and a good indicator to environmental degradation. The aim of this cross-sectional study was to diagnose problems encountered by beekeepers in four production basins in Senegal, to guide policy makers and attract investment in the sector. A questionnaire and an interview guide were designed together and distributed to 138 single beekeepers and 32 groups of beekeepers between September 2014 and January 2016. Beekeepers (93.75%) were men aged more than 50 years and (74.7%) didn’t have any knowledge about bee diseases. Modern beekeeping was unequally observed in the four basins. Honey was the most significant preferred commodities followed by the bee’s wax. Lack of beekeeping modern equipment, climate change (environment), and funding were identified and listed as major weaknesses respectively. Nevertheless, beekeepers in the Thies region were (100%) modern, compared with those to Fatick and Velingara who were still doing traditional beekeeping at 9.7% and 91% respectively. However, our study areas with the rich and diversified natural resources remain conducive to beekeeping. Keywords : Beekeeping, diagnostic, deficiency, strengths, Senegal.

L’objectif de cette etude est de quantifier les concentrations en metaux lourds et de rechercher la presence de residus de molecules medicamenteuses des effluents de trois hopitaux de Dakar (Senegal). C’est ainsi que la collecte des effluents a ete realisee chaque jour sur une periode de trois semaines a l’entree du deversoir des services de radiologie, de medecine interne et d’odontologie. Ensuite, des echantillons composites par semaine ont ete constitues pour rechercher leur composition en metaux lourds et en residus medicamenteux. Le transport a ete effectue a +4 °C et a l'obscurite pour assurer une conservation satisfaisante. Les metaux lourds ont ete doses par ICP-MS et les residus de medicaments ont ete recherches par UPLCMS/ MS. Les medicaments identifies dans les effluents sont essentiellement des analgesiques et des psychotropes. La concentration en metaux lourds des effluents des trois hopitaux est inferieure aux normes senegalaises et de celles de L’OMS fixant les conditions de rejet de metaux dans les eaux usees. Cependant, bien que les taux retrouves soient tolerables, leur introduction continuelle en milieu aquatique pourrait etre a l’origine d’effets nefastes sur les organismes marins par des phenomenes de bioaccumulation et de biomagnification. D’ou l’importance et la necessite des stations d’epuration pour une bonne gestion et une reduction des risques ecotoxicologiques lies aux effluents liquides hospitaliers. Mots cles : Effluents hospitaliers, metaux lourds, residus medicamenteux, toxicite.