PDF-Off-gases from a process containing trace levels of un-reacted ozone m

a thermal or catalytic type vent ozone destruct unit prior to its release into the atmosphere APPLICATIONS Thermal ozone destruct units are suitable for all types of processes especially when cat. The most reactive of these gases are chlorine monoxide ClO bromine monoxide BrO and chlorine and bromine atoms Cl and Br These gases participate in three prin cipal reaction cycles that destroy ozone Cycle 1 Ozone destruction Cycle 1 is illustrated 24 tratospheric ozone is destroyed by reactions involving reactive halogen gases which are produced in the chemi cal conversion of halogen source gases see Figure Q81 57374e most reactive of APPLICATIONS Thermal ozone destruct units are suitable for all types of processes especially when catalytic poisons are present MAIN CHARACTERISTICS The ODT units are compact and reliable lowcost destruct units OZONE DESTRUCT TECHNOLOGY SERIES ODT T Human activities affect the atmosphere.. The Ozone Layer: A Review. 90% of all ozone is in the stratosphere. 10% of all ozone is in the troposphere. Ozone is extremely important because it is the only gas that absorbs UV radiation from the sun and protects the Earth from its damaging effects.. air pollution. emissions. photochemical smog. ozone. acid rain. ozone layer. chlorofluorocarbons (CFCs). greenhouse effect. global warming. drought. water pollution. sewage. pesticides. fertilizers. scrubber. Esther Pischel. How does air become trapped?. Snow falls and accumulates. Porous top layer exchanges air with the atmosphere. . Snow . densifies. at depth (50 – 150 m) and traps gas. But…. The age of the air trapped in the ice is not the same as the ice itself. 1   The high ozone levels duringthe summer of 1998 and theoperating restrictions introducedto a partial extent for motor vehi-cles in a number of European coun-tries have shown that a reductionin th Venn Diagram. Compare/Contrast. GLOBAL WARMING. OZONE DEPLETION. Both harm the environment. Both caused by chemicals released by human activities. Caused by high . . levels of . CO. AND CURRENT STATUS. GLY 4241 - Lecture 8 . Fall, 2016. Mount Pinatubo Eruption, 1991. 2. 3. 1997 Montserrat Eruption. 4. Sulfur Dioxide Conversion. 5. Aerosol Optical Depth Analyses. BRW is Pt. Barrow, Alaska. Aziz AlSa’ad-Nasser Alabduljaleel-Abdulkareem AbuTaleb-Aziz AlOthman . 1.3 Vocabulary . Ultraviolet radiation:. rays of light that cannot be seen and that are a little bit shorter than the rays of violet light. 1   The high ozone levels duringthe summer of 1998 and theoperating restrictions introducedto a partial extent for motor vehi-cles in a number of European coun-tries have shown that a reductionin th in this class.. You will be compensated $$$ for your note-taking.. To . apply to be a note-taker please visit. http://sds.umbc.edu/becoming-a-note-taker/. Composition and Structure of the Atmosphere. professor . Dr.HUDA. FAROOQ ZAKI. INTRODUCTION TO ENVIRONMENTAL POLLUTION. Pollution : is the addition to the ecosystem of something which has a detrimental effect on it .. Pollution : is the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects. . Lecture . Five: Air . Pollution. Department of Environmental Engineering. OUTLINE. Atmosphere as a Resource. Types and Sources of Air Pollution. Major Classes of Air Pollutants. Urban . Air Pollution.