Exposure hazards of As in semi-urban rivers of Anambra, South-East Nigeria: Concentrations, source apportionments, health risks, and irrigation quality assessments
The assessment of As and other water quality parameters (Fe, Mn, K+, Na+, Mg2+, Ca2+, Cl−, SO42−, PO43−, NO3−, BOD, EC, TSS, TDS, and turbidity) in the four rivers of Anambra State, Nigeria, was carried out in order to ascertain their human health risks. The results showed that As and Fe (mg/L) rang...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2024-01-01
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| Series: | HydroResearch |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2589757824000106 |
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| Summary: | The assessment of As and other water quality parameters (Fe, Mn, K+, Na+, Mg2+, Ca2+, Cl−, SO42−, PO43−, NO3−, BOD, EC, TSS, TDS, and turbidity) in the four rivers of Anambra State, Nigeria, was carried out in order to ascertain their human health risks. The results showed that As and Fe (mg/L) ranged from 0.00 to 1.39 and 0.10 to 0.26 respectively (September) and from 0.06 to 0.98 and 0.07 to 0.29 in October. As concentrations in the rivers followed the order: Obibia > Mmiri-Ukwaka > Ovia > Mmiri-Eze, and were all above the WHO permissible limit (0.01 mg/L). Ovia, Obibia, and Mmiri-Ukwaka Rivers had WAWQI >100, indicating unsafe water. As had HQing > 1 in all the rivers except in Mmiri-Eze. The strong positive correlation between As and Fe suggest their geogenic origin; hence these rivers should be treated with activated carbon before consumption. |
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| ISSN: | 2589-7578 |