Heavy metal and metalloid content of

GROUND WATER QUALITY FEATURES OF THE COUNTRY

of high concentrations of fluoride, nitrate, iron, arsenic, total hardness and few toxic metal ions have been noticed in large areas in several states of India. ... Arsenic is a metalloid. The common valancy of arsenic in unpolluted ground water of ... result in increase in iron content. The concentration of iron in natural water is controlled by

  Content, Metal, Metalloid