Comparison of Calcium Levels (Ca2+) in Mountainous Wells and Coastal Well Water with the Crimsontry Method

Abstract

Background: Calcium is one of the essential minerals contained in water, and its levels can vary depending on the water source and geographic location. Well water in mountainous and coastal areas shows quite different characteristics, both in terms of clarity, taste, and mineral content. One of the essential mineral elements contained in water is calcium (Ca²⁺). Objective: This study was to determine and compare calcium (Ca²⁺) levels in mountain well water and coastal well water using complex methods. Methods: Complexometry The analysis was performed with the mureksid indicator and Na₂EDTA pentiter solution, which had previously been standardized three times (triplo) to ensure the accuracy of the concentration. The complexometry method was chosen because EDTA is able to form a stable complex with metal ions, making it very effective in quantitative analysis. Results: In water samples from mountainous areas (P), calcium levels decreased from 58,700 mg/L to 33,040 mg/L after cooking, while in samples from coastal areas (K), calcium levels from 69,960 mg/L to 38,960 mg/L showed a difference in calcium levels in the two water sources, which was suspected to be influenced by geographical, environmental, and environmental factors.  and soil conditions. Conclusion: Thus, it can be concluded that calcium levels in coastal well water are higher compared to mountain well water which can be caused by several factors influenced by geology and environmental influences such as rainfall, temperature, and human activities.