PPT-Ozone

Layer Depletion Lifes Support System Depletion Outline of Presentation What is the Ozone layer How is ozone created and destroyed What is the Ozone hole What are the causes of Ozone Depletion. Min Huang. (. min.huang@jpl.nasa.gov. ), . K. W. Bowman (JPL), G. R. Carmichael (U Iowa), . M. Lee (JPL), D. K. . Henze. (CU-Boulder), T. Chai (NOAA/ARL) . A. J. . Weinheimer. (NCAR), R. C. Cohen (UC Berkeley). by . David Gray. Scientific use. Background ozone. ozone present through natural or nonlocal sources. currently ranges from 20-45 ppb in North . America. Rising background ozone could mean non-attainment for much of North America. Natalya Kramarova, Paul Newman, Eric Nash, PK Bhartia, Richard . McPeters. , Didier Rault, Colin Seftor, Gordon Labow. OMPS meeting, June 6, 2013. Objectives. Can OMPS . reasonably . represent the Antarctic ozone hole?. Tuesday, January 5. th. , 2015. Good up high, bad nearby. Troposphere:. Thinnest layer of atmosphere, 80% mass, almost all H. 2. O. 0.04 ppm O. 3. Stratosphere: 10 ppm O. 3. Characteristics of O. 3. Highly poisonous, strong odor, irritant, colorless gas. 3. NAAQS. . EPRI ENV-VISION Conference. Air Quality-Background Ozone II. Washington, D.C.. May 11, 2016. Arlene M. Fiore. Acknowledgments:. . Pat . Dolwick. , Terry Keating (US EPA); M. Lin (Princeton/GFDL), Tom Moore (WESTAR-WRAP); G. . with . HDDM. Sensitivity . Analysis . Chris Emery, Tasko Olevski, Ralph Morris. CMAS: Fine Scale Modeling and Applications. October 25, 2016. Investigate ozone sensitivity to single source emissions. matter. Daniel Cohan and Beata Czader . Department of Civil and Environmental Engineering. Rice University. Background. EPA sets National Ambient . Air Quality . Standards (NAAQS) to protect health. States tasked with attainment. Peng Liu. 1. , Christian Hogrefe. 2. , Rohit Mathur. 2. , Uarporn Nopmongcol. 3. , Shawn Roselle. 2. , Tanya Spero. 2. . 1 . NRC Associate at US EPA, RTP, NC 27711, USA. . 2. National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC, 27711, USA. powerstation. NOx. from Craig. The Craig . powerstation. is the largest uncontrolled . NOx. source in the state (~18k tons/. yr. ). NPS is lobbying EPA for stricter controls (i.e., SCR on all three boilers). you can getTechnical BulletinPlenumRGFs RD Testing of New PHI REME Cell02 ppm at 3 from The . ozone layer or ozone shield . is a region of Earth's stratosphere that absorbs most of the Sun's UV radiation. . It contains high concentration of ozone (O3).. It is a pale blue gas at room temperature.. Retrievals . from . Joint UV and Visible . Measurements by the . TEMPO. Juseon Bak, Xiong Liu, Chris Miller, Kelly Chance. ,. John Houck, Ewan O’Sullivan, Caroline R. . Nowlan. , G. Gonzalez . Abad @ . found?. The . ozone layer . is the layer of the atmosphere at an altitude of 15 to 40 km (stratosphere) . What is Ozone?. Ozone. . is a molecule made of three oxygen atoms. What is the function of the ozone layer. Dr. . Berwyck. Poad. Compiled: 3 . February . 2017. Updated: 28 March 2017. Figure 1:. Overview of the experimental setup required to perform . OzID. in the ion-mobility spectrometry (IMS) cell of a Waters SYNAPT G2-Si. 2-20% ozone in oxygen (w/w) is generated externally and delivered to the IMS cell through a needle valve, yielding a pressure of ~3 .