PPT-Hg Hg Mercury in the environment:

where does it come from A brief human history of mercury poisoning Qin Shi Huang 1 st emperor of China Mad hatters Minimata disaster Karen Wetterhahn Dartmouth professor Iraq grain disaster. , Venus, . Mars. Part I. Lecture 20. Observing Mercury and Venus from . Earth. Elongations of Mercury. Mercury . moves around the Sun every 88 days in a rather eccentric orbit. As seen from the Earth, the angle between Mercury and the Sun at greatest eastern or western elongation can be as large as 28° (when Mercury is near aphelion) or as small as 18° (near perihelion). By contrast, Venus follows a larger, nearly circular orbit with a 224.7-day period. The angle between Venus and the Sun at eastern or western elongation is 47°.. From the Sierra to the Delta… . and beyond!. Izzy Martin. The Sierra Fund. We do this through:. The mission of The Sierra Fund is to increase and organize investment in the natural resources and communities of the Sierra Nevada. . Guey-Rong. . Sheu. Department of Atmospheric Sciences. National Central University. Jhong. -Li, Taiwan. Anthropogenic Hg Emissions in 2010. Country. Emission (. tonnes. ). Cambodia. 3.9. China. 575.2. Reduction in Mongolia . ASGM. Patience Singo, SAM Project Manager. . Swiss Cooperation Office Mongolia. Introduction. Mercury use in ASGM is illegal, banned in 2008. Miners were practicing whole ore amalgamation with serious environmental contamination.. Intro to Astrophysics. James Carroll. Elon. University. Craters. Craters are formed when . planetesimals. (comets or asteroids) collide with planets.. Planetesimals. typically have a speed of 40,000 to 250,000 km/hr.. ☿. By. . James. . Chen. Database. Orbital. . Period. . of. . Mercury. . ≈. . 88. . Earth. . days. Orbital. . Velocity. . of. . Mercury. . ≈. . 47. .. 87. . km. . s^(-1). . ≈. May 9, 2016. Outline. A transit of Mercury is . about to happen May 9, 2016. Very rare event. Visually impressive event. Shows the solar system orbital mechanics at work. A small version of the extremely rare Venus transit. methylmercury. is having a large impact on natural environments.  Mercury is most commonly found in sediment build up under water.  Mercury is converted to . methylmercury. through a process called . La gamme de thé MORPHEE vise toute générations recherchant le sommeil paisible tant désiré et non procuré par tout types de médicaments. Essentiellement composé de feuille de morphine, ce thé vous assurera d’un rétablissement digne d’un voyage sur . dynamics during . substorm. at Mercury. Wei-. Jie. . Sun. 1,2. , . James A. Slavin. 3. , . Suiyan. Fu. 2. , Jim M. Raines. 3. , . Gangkai. Poh. 3. , . Zuyin. Pu. 2. , . Qiu. -Gang Zong. 2. , Yong Wei. methylation. creates . methylmercury. .. Introduction. . Mercury has an affect on everything. Between soil on land, and sediment in water, sediment contains more mercury from being in the contaminated water.  Mercury has a huge effect on organisms. When mercury from power plants goes into the air, the mercury falls from the clouds when it rains, and lands in water, on the ground, and pollutes everything. Mercury affects how quickly organisms move, and makes them less tolerant to diseases, or harmful things. Mercury affects many different systems throughout the organism's body. (Mercury and health). Symbol: Hg. Classified as a heavy metal (in red). Volatile and is a liquid at room temperature (boiling point at 300. o. C). Natural origins: volcanoes . Toxic: as Hg (vapor); methylmercury. USEPA Maximum Contaminant Level: 0.002 ppm in drinking water. Natural Sources:. Soils and rocks . Wildfires. Man-Made Sources:. Burning coal and medical waste. Manufacturing chemicals. Rain and snow wash mercury out of the environment and into oceans, lakes, and rivers. Presented by: . Usman. Tariq. Introduction. Title: Environment . for Development Perspectives: Mercury Use in Artisanal and Small-scale Gold Mining . Purpose. Identifying the gaps and learning priorities.