The inventory of wood species producing the woods of works merchandised in the different big markets and clear soups in the city of Bukavu with the help of a questionnaire of investigation submitted to the different merchants lasted 6 months (June to December 2014), and cover some months of the two seasons thus of which the rainy (September, October, November, December 2014) and the dry (June, July and August 2014). To the whole 16 species of woods were inventoried of which Pinus, Cypressus lagitanica, Eucalyptus sp, Ekebergia rueppeliana , Lebrunia Buchaie, Piptadeniastrum africanum , Ocotea michelsonii, Lovoa trichilloides, without mark, Grevellea robusta, Syzigium guineense, Entadrophragma excelsum, Milicia excelsa, Chrysophyllum gorogosanum, Zanthroxylum giletii and Cedrellea. Nindja presents a big number of wood species producing the sold work woods in the different markets of woods to Bukavu with 12 species is 75%, follow-up of Bunyakiri (10 species are 62,5%), of Mwenga and Kalonge with 9 species (either 56,25%) and of Walungu and Idjwi with 5 species (either 31,25%). the smallest numbers observe themselves to Burhinyi and Luhwndja (4 species are 25%); Katana and Kabare with each 2 species are 12,5%, and in short, Nzibira with 1 species is 6,25%.

The study consisted on dealing with inventory of environmental emissions organized by the Bukavu's Medias. None of effort inventories of the Medias is not done in that domain. The study makes environmental emissions due to the time, their repartition and the Medias handlers. Through the maintenance methods and documentary, the study has got the results such as: to 13 Bukavu's radios, 8 among which 61.53% organize 22 environmental emissions which are done within 670 minutes per a week. To 4 televisions from Bukavu, 3 among 75% organize 5 emissions which are done within 180 minutes per a week.