Clandestine gold mining and pollution risks of sediments from Bagoue river (Niger watershed, Cote d’Ivoire)

Autor:	Gogbe Zeré Marius, Marius Tanoh Kamelan, Valentin N’douba, Augustin Kouame N’guessan
Rok vydání:	2021
Předmět:	Pollution Hydrology Gold mining Watershed business.industry media_common.quotation_subject chemistry.chemical_element Sediment Contamination Mercury (element) chemistry Dry weight Environmental science business Groundwater media_common
Zdroj:	International Journal of Fisheries and Aquatic Studies. 9:149-158
ISSN:	2347-5129 2394-0506
DOI:	10.22271/fish.2021.v9.i4b.2536
Popis:	Mercury used in gold amalgamation is a global concern and a major source of contamination and dispersion in environmental aquatic of Cote d’Ivoire, mainly in the North where clandestine gold mining activities are a local interest. The aim of this study was to assess the level of total mercury (Hg-T) contamination of sediments from Bagoue River. Water and sediments samples were collected during wet and dry seasons from six stations differently impacted. Spatial and seasonal variations in physical and chemical parameters were assessed. Results revealed that the level of Hg-T in water was 0.68±0.03 µg.L-1 and in the sediments, dry weight concentration was 0.064±0.01 mg.kg-1. The Hg-T concentration in sediments was significantly higher (p
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3f85f639d1c2c0c9d7232f9f3da86eb4 https://doi.org/10.22271/fish.2021.v9.i4b.2536 Zobrazit plný text záznamu