DETERMINING AND EVALUATING THE IRON AND MAGANESE CONTENT IN WATER FROM WELLS IN SOME HOUSEHOLDS AT LOC NINH COMMUNE, DONG HOI CITY, QUANG BINH PROVINCE

Abstract

The more developed the society is, the higher the need for using clear water becomes. However, overpopulation, urbanization and rapid industrialization has caused high pressure for the environment, especially underground water sources and water for daily life activities. The atomic absorption spectrophotometric method (AAS) has been applied to the determination of iron and manganese content in the water from wells in some households at Loc Ninh commune, Dong Hoi city, Quang Binh province. This method has high repeatability with RSD < 6,07% and the recovery from 98,6% to 101,3% with a low limit of detection. This result shows that the average iron and manganese content in water is relatively low - 0,048 ppm and 0,041 ppm respectively. The iron and manganese content in the well water meets the allowed standards of Vietnam.