Types des macroplastiques et leurs impacts sur les activités de pêche dans la rivière N’djili, Kinshasa (R.D Congo)
Auteur(s): Kayembe Sungula JeanNom de la revue/Journal: Journal of Applied Biosciences 1
Mois: mai
Volume: 185
Numéro: 1
Année: 2023
pages: 19484- 19503
Résumé
<p>ABSTRACT Objective: Most of the rivers running through the city of Kinshasa are submerged in plastic waste, which makes it difficult for water to run off and thus hinders the proper functioning of habitats and certain activities in the aquatic ecosystems concerned. The aim of this study was to inventory the different types of macroplastics present in the N'djili River in Kinshasa, Democratic Republic of Congo. Methodology and Results: Three sites were sampled along the N'djili River, and local fishermen were interviewed about their interaction with waste as part of their artisanal fishing activities. Data collection was based on discussions with fishermen and sampling of plastic waste at selected sites along the river. A total of 778 pieces of plastic waste were collected. Their chemical composition was deduced from the resin identification code printed on the objects. The results show that eight types of macroplastics were identified: high-density polyethylene (HDPE), low-density polyethylene (LDPE), polyethylene terephthalate (PET), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), cellulose acetate (CA) and an uncategorized group. Thcommon. Table-water and soft-drink bottles, sachet packaging, synthetic fibers, and cookie, chocolate and candy packaging are the most abundant wastes at the three sampling sites. The fishermen interviewed indicated that the destruction of fishing equipment by waste and the massive catch of plastic waste in nets and creels were the most observed negative impacts. Conclusion and application of results: The results of this study provide useful information that can be used by the political and administrative authorities of the city of Kinshasa in making decisions aimed at protecting the urban environment and aquatic environments. The study also serves as a reminder of the need and importance of implementing an appropriate policy for recycling plastic resins, in order to limit their proliferation in the environment.e most frequent resins are polyethylene terephthalate (27%), low-density polyethylene (19%) and polypropylene (13%). In terms of abundance, PET and PELD (24%), HDPE (17%) and PP (12%) are the most </p>