Abstract
Heavy metals has been one of the feared toxins today because of its psychological andphysiological effect. This research was designed to determine the heavy metals present inCalbayog and Antiao River and to obtain the concentration of the present heavy metals. Thisstudy was conducted based on instrumental analysis which has been accepted in determiningthe presence and concentration of heavy metals. The environmental parameters weredetermined first. pH of Antiao and Calbayog River is 7.53 and 7.23, respectively, thus they areslightly basic. Salinity of Antiao and Calbayog is 30 ppt and 34 ppt respectively, which are high.Turbidity of Antiao River and Calbayog are 0.94 m and 0.81 m, respectively, therefore they arequite turbid. Samples are tested for the presence of heavy metal, Mercury (Hg) is present in thetwo rivers. Cadmium (Cd) is present in the sediment of Antiao River. Concentrations of Cd andHg was analyzed using AAS, the concentration of the two are below detection limit. The resultsimplied that the levels of heavy metals found in selected rivers are low, though this does notmean that the threat of these metals is absent. Bioaccumulation in living organisms could posea greater threat.
Highlights
IntroductionThese rivers are the center of almost all civilization since the antiquity to the present time
The results indicates that the pH levels of both Calbayog and Antiao Rivers are within the normal range based on where most species of aquatic life on rivers lives [Kemker, 2013], this results clearly shows that even though there are high population density that surrounds this two rivers, its pH is still manageable for life to prosper
(2) Cadmium (Cd) and Mercury (Hg) metals are found present in the two rivers
Summary
These rivers are the center of almost all civilization since the antiquity to the present time The reason behind this was that these rivers provide water for crop for farming which had become a catalyst for growth of each civilization that had sprouted over the time. Without this river, the advancement that we made as a race today would be slower, or stagnant. Human civilization advances into something that no one of our ancestors, not even in their wildest dream, could have foreseen This growth of our race has a major set-back, as we progresses, so was the worsening conditions of the rivers that are
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