Arsenic occurs naturally Drinking water Industrial byproducts Smelting Coal Emissions Treated wood Pesticides or herbicides Food Juices Rice Seafood Forms of Arsenic Most common and stable ID: 775345
Download Presentation The PPT/PDF document " Arsenic “Because of its sinister, hom..." is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
Arsenic
“Because of its sinister, homicidal uses, arsenic became world-renowned as the ‘inheritance powder,’” “What made arsenic such a good homicidal poison is the same thing that makes it dangerous in environmental exposures — it gives no warning” .
Slide2Arsenic occurs naturally
Drinking waterIndustrial by-productsSmeltingCoal EmissionsTreated woodPesticides or herbicidesFoodJuices, Rice, Seafood
Slide3Forms of Arsenic
Most common and stable
Arsenite (+3)
Arsenate (+5)
Can bind to other elements to form inorganic/organic As.
Readily binds to Sulfur.
Slide4Why do we care?
20th most abundant metal in the Earth’s crustA known multiple organ carcinogenNon-cancer endpoints
Slide5Health Effects
Slide6Reproductive Effects
Known developmental toxicant and teratogen.
Readily crosses the placenta
Slide7Smedley
, Pauline L.. 2008 Sources and distribution of arsenic in groundwater and aquifers. In:
Appelo, Tony, (ed.) Arsenic in Groundwater : a World Problem. British Geological Survey
Arsenic: continues to poison the water of millions around the globe
Slide8As contamination around the world