PPT-Out-of-state and Natural Contributions to Baseline Atmospheric Mercury Deposition in Alaska

Krish Vijayaraghavan Jaegun Jung and Ralph Morris ENVIRON International Corporation Novato CA Alaska Forum on the Environment Anchorage AK February 6 2014 1 Acknowledgments 2 Donlin Gold. Fish: . The . Mercury. . Connection. Natural Sources:. Occurs naturally in soils, sediments, and rocks . Volcanic eruptions. Wildfires. Man-Made Sources:. Coal combustion. Medical waste . incineration. 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. 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. (work funded through the Great Lakes Restoration Initiative). Dr. Mark Cohen. NOAA Air Resources Laboratory (ARL). College Park, MD, USA. Briefing Slides for GLRI Monthly Call. January 9, 2013. Atmospheric deposition is believed to be the largest . 1. Model-estimated U.S. utility atmospheric mercury deposition contribution to the Great Lakes: HYSPLIT-Hg (1996 meteorology, 1999 emissions) vs. CMAQ-Hg (2001 meteorology, 2001 emissions). . This figure also shows an added component of the CMAQ-Hg estimates -- corresponding to . Tribal Challenges and Responses. Chemistry of Mercury and Adverse Health Effects – Scott Weir, KTIK. Sources and the Global Pool of Atmospheric Mercury - . Scott Weir, KTIK. Mercury Deposition – . Mercury. . Connection. Natural Sources:. Occurs naturally in soils, sediments, and rocks . Volcanic eruptions. Wildfires. Man-Made Sources:. Coal combustion. Medical waste incineration. Chemical manufacturing. 2. (280 . ppmv. ) results in a rain pH of 5.7:. This pH can be modified by natural acids (H. 2. SO. 4. , HNO. 3. , RCOOH…) and bases (NH. 3. , CaCO. 3. ) . e . natural rain has a pH in range 5-7. 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. C. Jerry Lin. *. 1,. . Li Pan. 1. , David G. Streets. 2. , Suraj Shetty. 1. , Carey Jang. 3. , Joshua Fu. 4. , Thomas C. Ho. 1. , Hsing-wei Chu. 1. 1 . College of Engineering, Lamar University, Beaumont, TX. Mark . Cohen, Roland Draxler, Hang Lei, Richard . Artz. NOAA . Air Resources Laboratory (ARL). College Park, MD, . USA. 12. th. International Conference on Mercury as a Global Pollutant (ICMGP), . Jeju. ARD - 28 20 19 Mercury: What you should know: Mercury is a persistent, bioaccumulative, toxic pollutant. When released into the environment, it accumulate s in water laid sediments where it conver Air Resources Laboratory. June 22, 2016. Relevance. Under the . Clean Air Act Amendments of . 1990, NOAA is charged . to . Identify . and assess the extent of deposition of atmospheric pollutants to Great Lakes and coastal waters . 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.