scholarly journals Sanitation Practices and Groundwater Quality in a Precarious Neighbourhood of a Coastal City in Central Africa

2021 ◽  
Vol 15 (1) ◽  
pp. 9-19
Author(s):  
Onana Fils Mamer ◽  
Tamsa Arfao Anto ◽  
Jiofack Charles Jo ◽  
Ngaldeu Noupoue Al ◽  
TAMATCHO KWEYANG Blandine P ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Central Africa ◽  
Coastal City

scholarly journals Chemical characteristics of groundwater and source identification in a coastal city

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0256360
Author(s):  
Qun Miao ◽  
Xuefei Li ◽  
Youqin Xu ◽  
Chao Liu ◽  
Ruikang Xie ◽  
...  
Keyword(s):  
Groundwater Quality ◽  
Coastal Area ◽  
Concentration Distribution ◽  
Ion Concentration ◽  
Chemical Characteristics ◽  
Hydrochemical Characteristics ◽  
Coastal City ◽  
Groundwater Sampling ◽  
Anions And Cations ◽  
Coefficient Method

A coastal city is studied in this paper. Based on 42 groundwater sampling points, a Piper diagram, the Shukarev classification, the Pearson correlation analysis, Gibbs plots and the ion proportional coefficient method are used to analyze the chemical characteristics and material source. The results show that the groundwater quality in the study area varies greatly from north to south. In the northern inland area (AREA I), the main anions and cations are H C O 3 - and Ca2+, and the hydrochemical characteristics are mainly HCO3 − Ca, HCO3 ⋅ SO4 − Ca and HCO3 − Mg. The ion concentration distribution is uniform, and the groundwater quality is good. By using Gibbs plots and the ion proportional coefficient method, the main source of ions is the dissolution of potassium feldspar, albite and carbonate rock. In contrast, in the southern coastal area (AREA II), the main anions and cations are Cl− and Na+, and the hydrochemical characteristics are mainly Cl − Na. The ion concentration distribution presents a strong spatial difference. The closer the groundwater sampling point is to seawater, the worse the overall groundwater quality. Evaporite dissolution, seawater intrusion, cation exchange effects and human activities are the main factors affecting the groundwater quality in this area. In conclusion, the groundwater quality in northern inland area (AREA I) is better, mainly controlled by the dissolution of rocks. The groundwater quality in southern coastal area (AREA II) changes greatly, mainly controlled by seawater.

Author response for "New U–Pb zircon ages of Nyong Complex meta‐plutonites: Implications for the Eburnean/ Trans‐Amazonian Orogeny in southwestern Cameroon (Central Africa)"

2020 ◽  
Author(s):  
Sébastien Owona ◽  
Lothar Ratschbacher ◽  
Gulzar Afzal M ◽  
Moussa Nsangou Ngapna ◽  
Joseph Mvondo Ondoa ◽  
...  
Keyword(s):  
Central Africa ◽  
Author Response
Sign in / Sign up

Export Citation Format

Share Document