PPT-E2 acid deposition

State what is meant by the term acid deposition and outline its origins Discuss the environmental effects of acid deposition and possible methods to counteract them acid deposition Acid deposition refers to the process by which acidic particles gases and precipitation leave the atmosphere . By: Habiba Sallam . What is acid rain?. Acid . rain is a type of acid deposition which can appear in many formations, for example, wet deposition is rain, sleet, snow or fog than has turned acidic. Dry deposition is another kind of acid deposition and it when gases and dust particles become more acidic than usual. Wet and dry deposition can both be carried by the wind. Sometimes for very long distances. And deposition in both forms falls on buildings, cars, and trees and can make water bodies acidic too. Dry deposition can be inhaled by humans and that can cause health issues. . (PVD and CVD). 1. Plan of presentation. Deposition methods. . CVD(. . Chemical . Vapor . Deposition) . . PVD ( Physical . Vapor . Deposition. ). Principles, processes on . the surface . . 2. Ling Qi. 1. , . Qinbin. Li. 1,2,3. , . Yinrui. Li. 4. , . Cenlin. He. 1,3. 1 . Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, CA 90095, . USA. 2 . Jet Propulsion Laboratory, California Institute of Technology, CA 91109, USA. Physical Weathering. Weathering. is the breakdown of rock or soil. . Physical . weathering occurs when natural forces, such as wind, running water, and moving ice, physically break up rock and soil into smaller particles. . Deposition. is the process whereby sediments. are “released” or “fall out” of an . erosional system.. River Delta. Glacial Moraine. Sand Dune. Barrier Island. Factors. that Impact . Deposition -- Velocity. Lecture 20. Aqueous Phase Chemistry Part II Wrap-Up /. Acid Deposition. AQUEOUS PHASE CHEMICAL KINETICS. Units for aqueous phase rate (R. a. ): . M/s (moles/L. solution. /s), if multiplied by L (vol/vol) then the rate is converted to moles/L. 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 . Introduction. . to. . fractal. . conceps. “Smooth to the eye,. Rough to the microscope”. Different systems/objects look. very similar at different length. scales (surface roughness). Roughness seems correlated. Part III: Summarizing Depositions. PART I: Last Minute Depo Tips!. GAP: Week 6 The Deposition. Professor Roxanne Crocket ’03 – Graves & King. Professor Donald G. Forgey ‘77 – Lewis Brisbois . Impact on Ecosystems. . The study of environmental chemistry involves more than just the . detection of . substances. . Scientists . who study the environment conduct . investigations to . determine whether there is evidence of change in the environment.. Acidic Deposition. The deposition of acidic or acid-forming pollutants from the atmosphere onto Earth’s surface. Often takes place as acid rain, but includes acid snow, sleet, hail, fog, or gases. Acid Deposition. 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. V-Map. 1 side for chalk. 1 side for . m&m’s. . Do Now. SWBAT describe mechanical weathering. 1. Where do pebbles and small particles of rock come from?. 2. . Did anyone carve pumpkins this weekend?. Network in East Asia . ): monitoring data assessment . for 2000-2014 period. Based on Reports by . :. Chair of the Scientific Advisory Committee for EANET. Chairperson of Drafting Committee for PRSAD3.