1998-05-06_GENERAL DOCUMENTS - M1983052

Home Browse Search

Whets Manganese? Is there a health based limit for Other heals studies also show that people Manganese In drinking water? who drink high levels of manganese for a Manganese is a metal found naturally in long time could have nervous system many types of rock. People are exposed to The latest scientific health advisory is that problems. low levels of manganese in water, air, soil, the daily source of drinking water should and food. It is common to find manganese have a maximum of L6 ppm of manganese. Harmful health effects are not expected in mining areas and many types of soil. This is the maximum amount of manganese from drinking high manganese water for Some manganese compounds dissolve in that an adult can drink every day fora only a few months out of a year. water and can be found in surface water, like lifetime without harmful health effects. streams and lakes, and groundwater. Who has the most health risk from i Water that meets the 0.05 ppm standard will drinking water high In Manganese? Is Manganese commonly found In also protect human health. drinking water? The elderly and infants are probably the WIII high levels of Manganese harm most at risk. Manganese is found in many drinking water my health? sources. A 1969 survey of 969 U.S. drinking The elderly were the first and most severely water systems reported 91% contained less There are some studies which tell us that affected in cases of manganese poisoning than 0.05 ppm manganese, with a mean drinking high levels of manganese every day from well water with high manganese in (average) of 0.022 ppm. Several other for many years can lead to some health Japan. Infants under one year may absorb studies reported similar manganese problems. higher amounts of manganese than older concentrations, with mean values ranging children and adults. from 0.004 to 0.032 ppm. High levels of manganese can affect how the brain, nerves, spinal cord, muscles, and joints Should I drink the water at Platoro? What Is the drinking water standard work (the nervous system). The nervous for manganese? system problems from drinking high levels of First find out about the level of manganese manganese are similar to Parkinson's in the water you drink. Very few of the wells The Environmental Protection Agency has a disease. Nervous system problems most often tested have high levels of manganese. The secondary standard for manganese of 0.05 occur after long-term exposure (months to owners of the wells which have been tested ppm for drinking water. A secondary years) to high levels of manganese. and found to have high manganese have standard is not set for health reasons, but been notified. However, not all wells in the usually indicates taste or odor concerns. In In one Greek study, people (average age 67 Platoro area have been tested. the case of manganese, this means that water years) who daily drank water containing high above the standard will not taste good, and levels of manganese (0.08-2.3 ppm) had The drinking water at Conejos Cabins, clothes washed in water with high levels of more signs of nervous system problems than Skyline Lodge and Restaurant, Texan Court, manganese may stain. similar people who drank water with and Gold Pan Acres does NOT have high manganese levels of 0.01 ppm. However, levels of manganese. there were some problems with how this study was done, so we can't be sure that the If your drinking water has manganese levels results prove that high levels of manganese above 0.05 ppm, to be safe and to avoid a caused the health problems. taste problem, do not drink the water.