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A 2007 study found that over 137 million people in more than 70 countries are probably affected by arsenic poisoning of drinking water. The problem became a serious health concern after mass poisoning of water in Bangladesh. [1] Arsenic contamination of ground water is found in many countries throughout the world, including the US. [2]
Arsenic poisoning (or arsenicosis) is a medical condition that occurs due to elevated levels of arsenic in the body. [4] If arsenic poisoning occurs over a brief period of time, symptoms may include vomiting , abdominal pain , encephalopathy , and watery diarrhea that contains blood . [ 1 ]
Throughout Bangladesh, tube wells get tested for concentrations of arsenic. [51] Those tubewells with arsenic below 50 μg/L (ppb) are painted green and those above this level are painted red. This communicates the water quality to those vulnerable to exposure so they can make informed decisions when switching to other water sources. [11]
Bradford sweets poisoning: Sweets accidentally made with arsenic were sold from a market stall which led to the poisoning of more than 200 people, including 21 deaths. 1858, United States. In the New York Swill milk scandal, an estimated 8,000 infants died in just one year, during the years long duration of adulterated milk.
Doctor of Science (D.Sc.) by University of Dhaka in 2009.; Professor Hussam was awarded one of the highest engineering prizes known as the 2007 Grainger Challenge Prize for Sustainability from the US National Academy of Engineering (NAE) for the Sono arsenic filter which is now used by thousands of people in the affected areas of Bangladesh, Nepal, and India.
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Arsenic is a moderately abundant element in Earth's crust, and although many arsenic compounds are often considered highly toxic to most life, a wide variety of organoarsenic compounds are produced biologically and various organic and inorganic arsenic compounds are metabolized by numerous organisms.
Groundwater pollution (also called groundwater contamination) occurs when pollutants are released to the ground and make their way into groundwater.This type of water pollution can also occur naturally due to the presence of a minor and unwanted constituent, contaminant, or impurity in the groundwater, in which case it is more likely referred to as contamination rather than pollution.