Hydrogeochemistry of the Middle Benue Trough, Nigeria
Mohammed Suleiman Chaanda,
Ali Moumouni
Issue:
Volume 7, Issue 5, October 2018
Pages:
70-76
Received:
29 September 2018
Accepted:
16 November 2018
Published:
10 January 2019
Abstract: There are many sources of underground water in the Middle Benue Trough, which have varying composition and constituents. Water samples from saline springs, boreholes, hand-dug wells and rivers / streams from the Middle Benue Trough are collected and analysed for cations, anions and heavy metals, using atomic absorption spectrometry (AAS); with aim of determining the concentration of the cations and anions in relation to their suitability within the tolerance limit. The analytical results revealed that the major cations such as Copper (Cu), Sodium (Na), Potassium (K), Iron (Fe) and Magnesium (Mg) have their concentrations within World Health Organization (WHO) drinking water permissible limits. However, Lead (Pb), Arsenic (As), Selenium (Se), Zinc (Zn) and Manganese (Mn) had concentration above the WHO standard and the Standard Organisation of Nigeria (SON) limits. These high values are mostly associated with the Baryte and Lead-Zinc mineralisation associated with either Keana or Awgu formations in the Middle Benue Trough and the saline brine origin of some few aquifers. This situation could potentially have a negative impact on the available water resources in the area with high risk for human consumption, although suitable for agricultural purposes. It is highly recommended that the water quality in this area is monitored from time to time and water borne diseases be systematically and promptly handled.
Abstract: There are many sources of underground water in the Middle Benue Trough, which have varying composition and constituents. Water samples from saline springs, boreholes, hand-dug wells and rivers / streams from the Middle Benue Trough are collected and analysed for cations, anions and heavy metals, using atomic absorption spectrometry (AAS); with aim ...
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Assessing the Water Quality of Cabugao Bay in Catanduanes Island, Luzon, Philippines
Ryan Paul Custodio Brillante,
Jimmy Tevar Masagca
Issue:
Volume 7, Issue 5, October 2018
Pages:
77-84
Received:
22 August 2018
Accepted:
7 November 2018
Published:
28 January 2019
Abstract: This paper assessed some physico-chemical parameters of Cabugao Bay in Catanduanes Island, Luzon, Philippines during November-December 2017 and January 2018, by evaluating seven quality parameters. Physical parameters included temperature, conductivity, and turbidity. Chemical parameters were pH, chlorine, ammonia, and dissolved oxygen. Descriptive method of research was used through fieldwork survey. Six sampling sites were considered. Results showed that the temperature of the bay is within the standard set by the Department of Environment and Natural Resources (DENR) in 2016. Conductivity and turbidity of the water provided high values indicating human activity disturbances, presence of industries such as generators, oil storage, vulcanizing, automobile repair, and other maintenance ventures. The chemical characteristics of the bay have no severe signs. However, there are indications that some chemical substances are affected by human wastes, domestic wastes, agricultural wastes, and other natural disturbances to water quality considering that the dissolved oxygen exceeded the standards. Results imply for sustainable ecosystem-based management (EBM) by addressing fisheries activities, tourism and human activities. Future studies may include other parameters: silicate, mercury, phosphate, iron (Fe), and other metallic substances; and studies on diurnal fluctuations of turbidity and determination of total solids, total organic matter, and sediment analysis throughout the bay.
Abstract: This paper assessed some physico-chemical parameters of Cabugao Bay in Catanduanes Island, Luzon, Philippines during November-December 2017 and January 2018, by evaluating seven quality parameters. Physical parameters included temperature, conductivity, and turbidity. Chemical parameters were pH, chlorine, ammonia, and dissolved oxygen. Descriptive...
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