PPT-1 Nitrogen Oxides in the Troposphere

sources distributions impacts and trends Lecture at the ERCA 2018 Grenoble January 19 2018 Andreas Richter Institute of Environmental Physics University of Bremen Bremen Germany richteriupphysikunibremende. Anthropogenic sources Nitrogen oxides are produced mainly from the burning of fossil fuels, such as petrol in cars and from power stations burning coal. Sulphur dioxide is formed primarily in the bur Alyson Baergen and D.J. Donaldson. April 15, 2014. 2. Grime. 3. Grime. Aesthetics of window soiling. Influence cycling of contaminants. Compartment for partitioning. Facilitate pollutant run off . Reactive substrate – HNO. The . troposphere. is the lowest layer of Earth's atmosphere. The troposphere starts at Earth's surface and goes up to a height of 7 to 20 km (4 to 12 miles, or 23,000 to 65,000 feet) above sea level. Most of the mass (about 75-80%) of the atmosphere is in the troposphere. Almost all weather occurs within this layer. Air is warmest at the bottom of the troposphere near ground level. Higher up it gets colder. Air pressure and the density of the air are also less at high altitudes. Nearly all of the water vapor and dust particles in the atmosphere are in the troposphere. That is why most clouds are found in this lowest layer, too. The troposphere is heated from below. The warm air, heated by the sun, tends to rise. That keeps the air in the troposphere "stirred up". The top of the troposphere is quite cold. Air also gets 'thinner' as you go higher up. . The ocean/layer of gas that surrounds the Earth. It is composed of 78% Nitrogen and 21% Oxygen. The other 1 % is a mixture of other gasses. We depend on this balance of gas for our survival. When it is out of balance, we have problems.. The most important among these gases are therefore water vapourand carbon dioxide. The basic principles of the water cycle are well known: Evaporation of liquid water at the surface, condensation, clo Acknowledgement. G. . . Ancellet. , O. R. . Cooper, J. . Cuesta, G. . Dufour. , F. . Ebojie. , G. Huang, S. S. . Kulawik. , B. Latter, T. Leblanc, J. Liu, X. Liu, J. . Neu. , H. . Petetin. , I. . Petropavlovskikh. atm. means smoke or vapor. The Atmosphere. Here are the layers of the atmosphere. The Atmosphere covers the whole earth!. Exosphere. – . (exo) meaning outer or beyond, so this is the outermost layer of our . GLY 4200. Lab 3 - Fall, . 2016. 2. Oxides. Oxygen is by far the most abundant element in the earth’s crust . > 60% by atomic proportion . Many minerals contain oxygen . Only those minerals where the oxygen is combined with metallic elements directly are oxides . By. : Rolando . and Jeffrey. The troposphere is the closest and smallest layer of the earth`s atmosphere.. It`s the layer that contains all the weather and living beings.. Temperture: 15 degrees celcius to -57 degrees celcius.. GLY 4200. Lab 3 - Fall, . 2017. 2. Oxides. Oxygen is by far the most abundant element in the earth’s crust . > 60% by atomic proportion . Many minerals contain oxygen . Only those minerals where the oxygen is combined with metallic elements directly are oxides . A layer of the atmosphere that is closest to the Earth’s surface. Almost all weather occurs here. Temperature decreases as altitude increases. STRATOSPHERE. Layer above the troposphere. Extends from 18-50 km. OXIDES AND OXOANIONS OF SULPHUR and NITROGEN Dr. S.B.Misal S.M.Joshi College, Hadapsar , Pune-28 Oxides of Sulphur Sulfur oxides( SOx ) are the compounds of sulfur and oxygen molecules. Sulfur has a rich chemistry with oxygen. 2. observations and the role of the upper troposphere. Rachel Silvern. Atmospheric Chemistry Modeling Group, Harvard University. TEMPO Science Team Meeting. June 7, 2018. Previous work showed 60% reduction of . Take a deep breath! . 78% of the air you just breathed . in is . made up of nitrogen gas. . Your body . requires nitrogen . to. build . proteins, . amino . acids, . and. DNA. , but your body . cannot .