Distribution of Potassium and Calcium Ions in Padelegan Water and Their Correlation to Water Quality
Haris Septian (a), Ary Giri Dwi Kartika (a*, b), Nike Ika Nuzula (a, b), Wiwit Sri Werdi Pratiwi (a, b)

a) Marine Science Departement, Universitas Trunojoyo Madura, Bangkalan, Indonesia
*arygiri.dwikartika[at]trunojoyo.ac.id
b) Salt Science and Technology, Universitas Trunojoyo Madura, Bangkalan, Indonesia

Abstract

The main ion content in seawater can provide information about the quality of seawater. Two of the important ions contained in seawater are potassium and calcium. Minerals such as potassium and calcium are inorganic components, components of body tissue and components of body liquids that work in conjunction with proteins, hormones, vitamins and other transport materials. The method used to determine the content of potassium and calcium in samples using AAS (Atomic Absorption Spectrophotometry). This study aims to determine the content of potassium and calcium in Padelegan waters and their distribution, to obtain a correlation between the two ions and water quality. There are six points used as seawater sampling sites in Padelegan waters. Therefore, so that the results obtained potassium concentrations ranged from 102,83 to 267,49 mg/L, and those for calcium from 205,61 to 492,49 mg/L. The results of correlation research between potassium and calcium concentrations and sea water quality in Padelegan waters show a weak negative correlation in Total Dissolved Solids (TDS), pH, Dissolved Oxygen (DO), Salinity, Specific Gravity (SG), and Turbidity, and a weak positive correlation for Temperature parameters.

Keywords: potassium, calcium, seawater, water quality, madura

Topic: Marine Resources, and Conservation