by Bangladesh Council of Scientific and Industrial Research in Dhaka .
Written in English
|The Physical Object|
|Number of Pages||43|
|LC Control Number||2011351198|
The Safe Drinking Water Act, as amended in , requires the U.S. Environmental Protection Agency (USEPA) to review current drinking-water standards for arsenic, propose a maximum contaminant level for arsenic by January 1, , and issue a final regulation by January, Arsenic can enter the water supply from natural deposits in the earth or from industrial and agricultural pollution. It is widely believed that naturally occurring arsenic dissolves out of certain rock formations when ground water levels drop significantly. Some industries in the United States release thousands of pounds of arsenic into the. Synopsis Arsenic contamination poses a major environmental problem, especially in Southeast Asian countries like Bangladesh and India. Threatening the health of millions of people due to arsenic’s toxicity and carcinogenicity, the major routes of arsenic exposure for humans are either through drinking water or : Sudhakar Srivastava. Subcommittee on Arsenic in Drinking Water, Committee on Toxicology, Board on Environmental Studies and Toxicology, Commission on Life Sciences, National Research Council. Reviews User .
The EPA has set the MCLG for arsenic at zero. For private water supplies (i.e. individual residential wells) the arsenic drinking water health advisory recommendation is also mg/ the arsenic in your water exceeds mg/L, EGLE recommends that you do not use your well water for drinking or cooking. Most arsenic in drinking water comes from natural rock formations. As water flows through these formations, it can dissolve arsenic and carry it into underground aquifers, streams, or rivers that may become drinking water supplies. Arsenic also can come from human activities, such as mining or smelting ores that contain arsenic. Arsenic is a natural element found widely in the earth's crust. It may be found in some drinking water supplies, including wells. Exposure to high levels of arsenic can cause health effects. There are trace amounts of arsenic in all living matter. For most Canadians, the primary source of exposure to arsenic is food, followed by drinking water. The current version of Arsenic in Drinking-water, Background document for development of WHO Guidelines for Drinking-water Quality, is an update of the background document published in the third edition of the Guidelines, which was prepared by Mr J.K. .
Arsenic is poisonous, and drinking arsenic in water can be deadly. Exposure can cause headaches, drowsiness, diarrhea and vomiting, and discoloration of the skin and fingernails. Over time, chronic exposure may lead to severe stomach pain, numbness in . Abstract. This chapter introduces the problem of groundwater contamination that has occurred in several parts of the world. The main objective of this chapter is to introduce the book; in addition, explanations of the occurrence and causes of arsenic in groundwater, the forms of arsenic present, and their adverse impact on human health through drinking water and the food chain are elaborated. Environmental occurrence. Arsenic is the 20 th most common element in the earth’s crust, and is emitted to the environment as a result of volcanic activity and industrial activities. Mining, smelting of non-ferrous metals and burning of fossil fuels are the major anthropogenic sources of arsenic contamination of air, water, and soil (primarily in the form of arsenic trioxide). Arsenic methylation patterns before and after changing from higher to lower concentrations of arsenic in drinking water. Environmental Health Perspectives Hopenhayn-Rich, C., M.L. Biggs, A. Fuchs, R. Bergoglio, E. Tello, H. Nicolli and A.H. Smith. Bladder cancer mortality associated with arsenic in drinking water in Argentina.