the volatile oils of eucalyptus camaldulensis leaves harvested in three agro-ecological areas in senegal were analysed by gc-fid and gc-ms. the yields ranged from 0.5 to 1.0%. qualitative and quantitative differences were determined in the composition according to leave sources. the main compounds of saint-louis oils were: 1,8-cineole (69.3-73.0%) and limonene (12.4-13.5%), whereas those from kaolack were characterized by p-cymene (28.4-32.6%), 1,8-cineole (16.8-20.0%), -pinene (8.7-11.6%) and limonene (7.8-8.3%), while those plants from dakar revealed high content of -pinene (25.3-34.4%) and -eudesmol (12.3-20.6%). during drying of leaves, the proportions of all major compounds (except limonene) increased and were optimal after 2 h hydrodistillation. as in oils, 1,8-cineole was the major compound in hydrosols from saint-louis and kaolack (77.3% and 39.0%, respectively), dakar floral water showed: -terpineol (20.3%), 1,8-cineole (12.6%), trans-pinocarveol (9.9%) and -eudesmol (9.8%) as major compounds. e. camaldulensis from saint-louis is a source of essential oils that could be used in pharmaceutical and cosmetic applications.