PPT-Arsenic Poisoning in tube wells in

bangladesh By Lauren Jones amp David Pinigis Where can we find Arsenic Arsenic can be found all over the world both from human activities and found in the earth crust West Bengal and Bangladesh have a current problem with Arsenic in their water tube wells . Arsenic concentrations vary in accordance with geographic location When arsenic levels are found to be too high at a specific location it may be necessary to treat drinking water to remove it Arsenic usually exists in two different forms or valences Human Health and the Environment. Introduction to Arsenic. Good Element – Bad Chemistry. Arsenic. Good Element – Bad Chemistry. What is . Arsenic. ?. Arsenic is an element which occurs naturally in the environment.. 6. th. period. By: Katelyn Keller. Brianna Leslie. Tiffany Goulart. Used. : rat poison. Found: food, water, household items, etc.. Arsenic can be consumed from: seafood, water, bone meal, beer, tobacco smoke, laundry detergent. An Update. Mary L. Barrett, Ph.D.. Consulting Geologist & Oilfield Historian. Shreveport, LA. mbarrett@centenary.edu. 22. nd. International Petroleum Environmental Conference. November 17-19, 2015---Denver, CO. Adrian . Bumstead. , Xiao Qi Li, Jessica So, Jin (Donna) Yang. PHM142 Fall . 2015. Instructor: Dr. Jeffrey Henderson. Arsenic (As). Toxic metalloid. Arsenite. (. As. 2. O. 3. ; As . III). Arsenate. Eun . Y. oung Jeong. Rebecca Sammy. Selvie Jegarajaratnam . Zakiya Mittal. Presentation Date: October 10, 2017. PHM142H1. PHM142 Fall . 2017. Instructor: Dr. Jeffrey Henderson. Introduction. Metalloid - both metal and nonmetal properties. PHM142 . Fall 2019. Coordinator. : Jeffrey Henderson. Arsenic: Sources and Human Exposure. Natural Sources. Arsenic is most abundant in the earth’s crust, usually in the form of arsenopyrite.. However, small amounts of arsenic are present in the soil, air, and groundwater.. Arsenic occurs naturally. Drinking water. Industrial by-products. Smelting. Coal Emissions. Treated wood. Pesticides or herbicides. Food. Juices, Rice, Seafood. Forms of Arsenic. Most common and stable. Brittany Segill. Where?. This study is taking place in Nevada, with particular interest in the Humboldt River and Humboldt River basin. This basin has various metallic and non-metallic economic deposits and is a leading producer of gold, silver, copper, mercury and tungsten in the US. Driven Well Construction Features Assembled lengths of two inches to three inches diameter metal pipes are driven into the ground A screened well point located at the end of the pipe helps drive the An estimated one million people are affected by foodborne disease in the UK annually, costing the economy in excess of £1bn. Laboratory confirmed human cases in the UK from 2000 to 2017 of the four major bacterial pathogens (harmful bacteria) are shown below. Only a minority of cases are reported and samples sent for analysis.. Arsenic Arsenic is a naturally occurring metal found in the earth’s crust. It occurs in various forms: elemental (metallic) arsenic; combined with other elements such as oxygen, chlorine, sulfur ( Andrea L. Foster, PhD. U.S. Geological Survey GMEG. Menlo Park, CA. Arsenic is an element of concern in mined gold deposits around the world. Don Pedro . Harvard/Jamestown. Kelly/Rand (Au/Ag). Ruth Mine (Cu). by Joe . Bloggs. and . T. eresa Green. Introduction. Arsenic is a metalloid that can be found in the environment in rocks, soil, and water. It occurs naturally as the minerals . arsenopyrite. (. FeAsS.