Jean-Paul Otamonga

TL;DR: The occurrence of emerging biological contaminants including antibiotic resistance genes (ARGs) and Faecal Indicator Bacteria is still little investigated in developing countries under tropical conditions, indicating a common origin and extant source of contamination in tropical aquatic ecosystems receiving wastewaters.

TL;DR: In this article, the impact of past mining activity (i.e., abandoned mine) on aquatic ecosystems has been studied using ICP-MS analysis for trace metals and rare earth elements (REE) in sediment samples from Lubumbashi River (RL) and Tshamilemba Canal (CT), Katanga, Democratic Republic of the Congo (DRC).

TL;DR: Very high faecal contamination of water from the shallow wells, and of water and sediments from the river, during both wet and dry seasons revealed, highlighting the potential human health risk associated with the exposure to water contamination from shallow wells and Kokolo Canal.

TL;DR: Investigating the contamination degree and distribution of toxic metals and REEs in contrasting sediment, soil and plant samples surrounding rivers in the African copperbelt area characterized by the presence of numerous abandoned mines, artisanal and industrial mining activities indicated important contribution of mining activities to the study sites pollution in addition to natural background.

TL;DR: In this article, the seasonal variation of physicochemical parameters including pH, temperature (T), electrical conductivity (EC), dissolved oxygen (O2), dissolved organic carbon (DOC), total organic carbon, and trace metals were assessed in water samples collected from wells and two rivers which were the River Lukemi (RLK, n=3) and River Luini (RLN, n =2) located in the City of Kikwit (Province of Kwilu, Democratic Republic of the Congo).