Although officially created, the protected reserve of Ngiri remains virtual, existing only on paper, many reasons can explain this hypothesis: - The insufficient national regulations, at least at the time of the establishment of this protected reserve, which had the effect of not having any application at the local level. - Conflicts of administrative and community interest arising from the overlapping of different laws or measures. - The authorities’ lack of interest in safeguarding biodiversity or the priorities given to other aspects of environmental management (development of fishing). - The local situation too complicated due to various conflicts between fishermen and eco-guards. - The lack of qualified personnel, of means, in particular financial resources, to implement measures for the sustainable management of the reserve. - The lack of skills in assessing the state of the environment and planning management. - The poor definition of the limits of the protected reserve, thus reducing its interest for the fauna and flora. - The very significant human pressure on the outskirts and the lack of ecological corridors to connect the reserve. - The lack of economic valuation of the said reserve.

A socio-environmental assessment on the installation of relay antennas in the city of Mbandaka, and their toxic effects on human health, was carried out in the districts of Mbandaka and its surroundings, in the province of Equateur, in the Democratic Republic of Congo. In these districts, the installation of relay antennas is done without respecting the standards in terms of communication. The field study revealed that the proliferation of relay antennas in the city of Mbandaka and its surroundings did not respect environmental standards, and this caused most cardiovascular diseases in the surrounding population. The results obtained show that: - No environmental impact study was carried out before the installation of these relay antennas. - 75% of the population uses mobile phones which makes this device the first advanced communication tool to be used. - 85% of relay antennas are installed less than 20 meters from residential houses. - 95% of respondents are ignorant of the danger of relay antennas. - The Environmental Impact Study did not take place before the installation of these relay antennas. - Most of the illnesses observed in the surrounding health structures are due to non-compliance with established standards for the installation of relay antennas. - 96% of GSM antenna sites located in Mbandakan did not comply with standards.

The biodiversity of the Congo Basin is a resource that must be well known and managed. Despite the strong pressure exerted on it, biodiversity still contains emblematic species that must be preserved. In addition to their biological importance, tropical forests remain essential for the riparian populations. Hence the need for rational and efficient management.We were interested in a seasonal catch assessment of endangered species fish. The results obtained during this research prove the failure to respect the capture of certain species of fish without taking into account the respect of the season (the calendar, the fishing zones as well as the biological maturity).This state of affairs sufficiently proves that the Ministry of Agriculture, Fisheries and Livestock as well as that of the Environment, Nature Conservation and Tourism through the various services do not apply the regulatory measures for conservation of halieutic diversity.

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 decline in biodiversity is an alarming reality, nearly half of all primate species are threatened with extinction, and all great ape species - bonobos, chimpanzees, gorillas, orangutans and so many others are concerned. The main threats identified in recent years are habitat destruction, poaching, situations of armed conflict and disease transmission. The great apes have thus been the subject of numerous conservation efforts for several decades. However, despite these efforts, the decline of their populations continues. Therefore, the present study consists in evaluating wild animal species totally protected, and clandestinely sold in the markets of Mbandaka in the Democratic Republic of Congo (DRC). Our surveys were carried out in the five markets of the city of Mbandaka distributed as follows: Sokozelo: 34, Basoko: 10, Makila: 8, Mbandaka II: 6, Mandala II: 7. The results obtained show that: - 79.92% of the surveyed population sells species of animals totally protected by CITES. - Among the 45 fully protected animals, 10 or 22.2% are sold illegally in the various markets surveyed in the city of Mbandaka. - 81% of sellers of meat from protected animals do not know CITES laws, on the other hand 18.4% of these sellers have an idea about knowledge of CITES laws. - The absence of functional structures likely to ensure the application of the law on wildlife conservation in the Democratic Republic of Congo. - No environmental information and education, as well as awareness raising on wildlife conservation and protection in Equateur province. - Poor popularization of CITES laws on the conservation and protection of fully protected species in Equateur Province. - Complicity of park eco-guards with poachers.

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.