Tobacco has become an essential element in the life of young people in the city of Mbandaka in general and the Bongondjo district in particular, but the place it occupies goes back several years. In particular, it occupies a place in the various fields (economic, social and cultural), so its place is at least quite important. However, this generates serious consequences and particularly at the health levels where it causes various diseases observed in the laboratory of the Bongondjo health center which strongly accentuates the risk of developing behaviors or problems (sterilization, aggressiveness, etc.) in the hospital. district.

The present study consists with the management of the household refuse in three various districts (Mambenga, Ibanga and Air Congo) of the town of Mbandaka of RD Congo.Our investigations were carried out in three hundred (300) households because of 100 households per district. These households were contained in «bunches or pockets» presenting the same characteristics or similarities. Thus, we obtained 6 bunches or pockets of the 50 households each one because of two bunches per district .The results obtained show that: the majority of the households of these districts do not have dustbins.3% only of the households of Mambenga district have the dustbins counter 2% of Ibanga district.In the district, 92,8% of households carry out against the hiding of the refuse 95,98% in Wangata and 93,33% with Bolenge.the major part of our surveyed are adults who are in the age bracket of 19-49 years for the three districts. The heads of the households whose age is lower or equal to 18 years represent only one small proportion among surveyed.as for the function of surveyed, the majority are agents and civils servant of the state, except in the zone of health of Bolengeor the peasants account for 50%.compared to the level of studies, it is released that the majority of the heads of the households finished the secondary studies, followed those which made the higher and university studies.As a result, the absence of functional structures capable of ensuring the collection and disposal of household waste through households in the city of Mbandaka leads to illegal and uncontrolled dumping in the streets and neighborhoods of this city.

The present investigation is focused in the evaluation of social and environmental impact of well water consumed in Mama Balako Area of Mbandaka City in the Democratic Republic of Congo.It was observed that the construction of these well water does not respect the standard fixed by the World Health organization (Who) in this matter.This biological analysis of these drinking waters was made both in dry and rainy seasons and the experimental resultants revealed the presence of total and fuel coli forms. The physical and chemical parameters selected pure Who’s on order to evaluate the portability of drinking Water showed acceptable values closed to the Who’s ones, except for PNA3, PNA4, and PNA5. Where the pH values observed were standard, less than the Who’s Standards, testifying that the waters are acid.The authors seek the Congolese government to take care of these well waters management instead of the concerned population.Some Sustainable possible strategies are proposed by the authons of present investigation for these water management in order to reduce the pollution and increase the health’s population.