Analisis Amonia (NH3) dalam Air Baku yang Bersumber dari Air Sungai dan Air Sumur Menggunakan Spektrofotometer di Perumda Tirtanadi Sisingamangaraja

Abstract

Water is an environmental component that is important for life. Water demand is currently increasing along with industrial development and domestic needs. This has an impact on decreasing the quantity and quality of clean water due to the increasing need for water by industry and domestically. How much ammonia (NH3) levels in raw water from Martubung and Tirta Nusantara (Denai) as well as drilled wells from Martubung and Berastagi meet the raw water quality standards of Regulation of the Minister of Health of the Republic of Indonesia 492/MENKES/PER IV/2010. The research method applied in the experiment was the Nessler method using DR-3900 spectrophotometer at a wavelength of 425 nm. The ammonia content in water can cause various negative impacts on human health and the environment. Ammonia can react with chlorine to produce chloramine, which is a stronger disinfectant than chlorine. However, chloramine can also cause side effects that are dangerous to human health, such as irritation of the respiratory tract and eyes. Regulation of the Minister of Health of the Republic of Indonesia Number 492 of 2010 concerning Drinking Water Quality Standards stipulates that ammonia levels in raw water must not exceed 1.5 mg/L. Martubung (Labuhan) Raw Water: Ammonia level 1,679 mg/L. Martubung raw water does not meet raw water quality standards. Tirta Nusantara Raw Water (Denai): Ammonia content 0.544 mg/L. Tirta Nusantara Raw Water meets raw water quality standards. Martubung Drilling Well: Ammonia level 1,769 mg/L. Martubung Drilling Well does not meet raw water quality standards. Berastagi Drilling Well: Ammonia level 0.012 mg/L. The Berastagi Drilling Well meets raw water quality standards.