Presentation on theme: "Selenium (Se) and Phosphate Mining in Southeast Idaho"— Presentation transcript:
1 Selenium (Se) and Phosphate Mining in Southeast Idaho Smoky Canyon Mine. Taken from, WindowsLiveWriter/AsgoesIdahosogoestheNation_11818/PanelF_after_2.jpg
2 Phosphorous (P) from phosphate ores Found in FertilizersUsed in flares and match tipsUsed in Pesticides and herbicides for agricultureAlso found in: toothpaste, soda pop, detergents, and roundup.
3 Match tips containing phosphoroushttp://img. ehowcdn Match tips containing phosphoroushttp://img.ehowcdn.com/article-page-main/ehow/images/a06/cp/et/obtain-red-phosphorus-800x800.jpg. Taken by,Roundup containing prosperous. Taken by,Toothpaste containing phosphorous. Taken by,Soda pop containing phosphorus. Taken by,
4 Phosphate mines east of Soda Springs Mines in Caribou County. Taken by,Eastern Idaho phosphate mines. Taken by,
5 Selenium in the waterSelenium in Monsanto's runoff stream. Taken from,
6 Cause: Orphan (inactive) mines not closed properly Selenium rich mine tailings dumped near streamsTop soil non existent in some reclaimed sites
7 Reclaimed Phosphate mine Abandoned mine in southeast Idaho. Taken by,
8 Result Plants absorb the selenium from streams and surface runoff Some cows, sheep, fish, and wildlife diagnosed with chronic selenosis (selenium poisoning)Humans consume fish and wildlife containing high levels of selenium
9 Cows with selenium poisoning Left: cow died from selenium poisoning. Taken from,Right: cow with chronic selenosis. Taken by,
10 Risk to humansSelenium occurs naturally in our bodies, however when concentrated into high doses can lead to Chronic Selenosis (selenium poisoning) and even deathDrinking water derived from contaminated streams in the area may be harmful due to high levels of seleniumConsuming Fish, wildlife, and domestic animals that graze in pastures near contaminated streams may also be harmful if Selenium levels are great enough
11 Pros and Cons of mining phosphate in Southeast Idaho FertilizersSelenium released into local water systemHerbicides and PesticidesHarmful to landscapeFoodsKilling plants and animals - Chronic selenosis (Selenium poisoning)Toothpaste and soap detergentsHumans consuming plants and wildlife rich in Selenium may be harmful
12 Did you knowMany mines have been in violation of the clean water act for nearly a decade from high selenium levels.5 Phosphate mine companies in Southeast Idaho: J.R. Simplot Company, Monsanto, Rhodia, NuWest Industries (Agrium), and Astaris (formally FMC) produce more than 5.4 million metric tons of ore per yearThe BLM (Bureau of Land Management) is still accepting new mine proposals for the area3 of the approximately orphan mines are now superfund sites (Smoky Canyon Mine, Valley Mine, and South Rasmussen Ridge Mine) all located in Caribou County
13 ReferencesBuck, Jones, Brian, Jeffery. "Interagency/Industry coordination at phosphate mines in Southeastern Idaho. "http://www.fs.fed.us. N.p., n.d. Web. 4 Oct <http://www.fs.fed.us/geology/buck-jones.pdf>."Idaho: Phosphate Mining - Poisoning Lands, Waters, Wildlife. "http://www.greateryellowstone.org. N.p., n.d. Web. 4 Oct <http://www.greateryellowstone.org/issues/lands/Feature.php?i d=287Blanchard, Tom. "Hard rock and Phosphate Mining in Idaho. "http://www.wildwhiteclouds.org. March 2002, n.d. Web. 4 Oct <http://www.wildwhiteclouds.org/news_mining_IdahoMining Rpt.pdf>.