Читать книгу Groundwater Geochemistry - Группа авторов - Страница 112

Lead (Pb) pollution in groundwater is a cumbersome and daunting affair for the global population. The manufacturing plants of lead acid batteries contribute to lead pollution in groundwater. Old pipes that contain lead are direct sources of lead contamination in water. The industrial sources and vehicle exhaust also produce Pb contamination in water. Pb is addressed as a normal constituent of The Earth's crust and it is found into two oxidation states as 0 and 2. It exists in water as Pb²⁺, PbOH⁺, and PbHCO3⁺ at normal pH (Raviraja et al. 2008). The exposure to a small amount of Pb by humans is more lethal than other heavy metal contamination (Hashim et al. 2011).