Deciphering groundwater pollution in the Lower Anayari Catchment: insights from using δ 2 H, δ 18 O, PMF, and APCS-MLR receptor model.

Autor: Abdul-Wahab D; Department of Nuclear Science and Applications, School of Nuclear and Allied Sciences, University of Ghana, Atomic-Kwabenya, Accra, Ghana., Asare EA; Nuclear Chemistry and Environmental Research Centre, Ghana Atomic Energy Commission (GAEC), National Nuclear Research Institute (NNRI), Box LG 80, Legon-Accra, Ghana. aquisman1989@gmail.com., Wahi R; Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia., Ngaini Z; Department of Chemistry, Faculty of Resource Science and Technology, Universiti Malaysia Sarawak, Kota Samarahan, Sarawak, Malaysia., Klutse NAB; Department of Physics, University of Ghana, Legon-Accra, Ghana., Asamoah A; Nuclear Chemistry and Environmental Research Centre, Ghana Atomic Energy Commission (GAEC), National Nuclear Research Institute (NNRI), Box LG 80, Legon-Accra, Ghana.
Jazyk: angličtina
Zdroj: Environmental science and pollution research international [Environ Sci Pollut Res Int] 2024 Apr; Vol. 31 (18), pp. 27099-27116. Date of Electronic Publication: 2024 Mar 19.
DOI: 10.1007/s11356-024-32942-6
Abstrakt: This research provides a comprehensive analysis of groundwater pollution in the Lower Anayari Catchment (LAC) through δ 2 H and δ 18 O isotopic analysis, along with positive matrix factorization (PMF) and PCS-MLR receptor models. Forty groundwater samples were collected from hand-dug wells and equipped boreholes across the LAC. Flame photometry for Na + and K + , complexometric titration for Ca 2+ , ion chromatography for Cl - , F - , NO 3 - , SO 4 2- , and PO 4 3- , and atomic absorption spectrometry for Mg 2+ , Fe, Pb, Cd, As, and Ni were analytical techniques/instruments employed. In regard to cations, Na + has the highest average concentration of 63.0 mg/L, while Mg 2+ has the lowest at 2.58 mg/L. Concerning the anions and nutrients, Cl - has the highest mean concentration of 18.7 mg/L, and Fl - has the lowest at 0.50 mg/L. Metalloids were detected in trace amount with Fe displaying the highest mean concentration of 0.077 mg/L whereas Cd and As recorded lowest (0.001 mg/L). The average values for groundwater δ 18 O and δ 2 H were - 3.64‰ and - 20.7‰, respectively; the average values for rainwater isotopic composition were - 3.41‰ for δ 18 O and - 17.4‰ for δ 2 H. It is believed that natural geological features, particularly biotite granitoid and volcanic flow/subvolcanic rocks from the Birimian Supergroup, significantly influence groundwater mineralisation. Additionally, the impact of anthropogenic activities on water quality, with urban development and agricultural practices, may be attributed to increasing levels of certain contaminants such as Fe, Ni, NO 3 - , and PO 4 3- . This research contributes to the broader field of hydrological study and provides practical implications for managing and conserving water resources in similar contexts. The innovative combination of isotopic and statistical analyses sets a new standard for future studies in groundwater quality assessment, emphasising the need for comprehensive approaches that consider both geological characteristics and human impacts for sustainable water resource management.
(© 2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)
Databáze: MEDLINE
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