PPT-The 6 Major Air Pollutants

OZONE A gas that forms in the atmosphere due to the burning of fossil fuels gas diesel coal wood Can be good up in the atmosphere by protecting humans from UV rays but bad near the ground because it is a dangerous pollutant. Introduction II Main air pollutants and their effects on human health and the environment III IV Policy approach to emissions at national and regional level L. U T I O N. Identifying and Understanding Air, Water, and Soil Pollution. Air Pollution. Atmosphere need to know:. Air is more dense at sea level. 75-80% of air mass found in troposphere. Atmosphere contains 78% N, 21%O, and 1% trace gases like, methane, nitrous oxide, ozone, argon, water vapor, and carbon dioxide. Also soot, and dust.. There . has been . rapid . worldwide advancements . in science and technology. But all these advancements have contributed to various forms of . pollution.. Sources.. 1.. Industries.. Industrial pollutants have been one of the major sources of pollution and affects resources like . B.Sc. 3. rd. Year Chemistry General . Dr. . Santarupa. . Thakurta. Department of Chemistry. Introduction. It is the contamination of air by the discharge of . harmful substances. . Air pollution can cause health problems and it can . LT 7C: Describe the major outdoor and indoor air pollution problems, discuss the causes and effects of these problems and explain possible solutions to them..  . Outdoor Air Pollution. The presence of chemicals in the atmosphere in concentrations high enough to harm organisms, ecosystems, or human-made materials, or to alter the climate. what is the nature of the atmosphere. We live at the bottom of a thin layer of gases surrounding the earth called the atmosphere, which is divided into smaller spherical layers. In the troposphere, the layer closest to earth, about 75-80% of the earths air mass is found here.. 2. ). 20.95% Oxygen (O. 2. ). 0-4% Water Vapor (H. 2. O). 0.93% Argon (Ar). 0.036% Carbon Dioxide (CO. 2. ). 0.002% Neon (Ne). 0.005%Helium (He). 0.002% Methane (CH. 4. ). 0.00005% Hydrogen (H). 0.00003% Nitrous Oxide (N. P O L L U T I O N Identifying and Understanding Air, Water, and Soil Pollution Air Pollution Atmosphere need to know: Air is more dense at sea level 75-80% of air mass found in troposphere Atmosphere contains 78% N, 21%O, and 1% trace gases like, methane, nitrous oxide, ozone, argon, water vapor, and carbon dioxide. Also soot, and dust. Topics. :. 1) Major Air Pollutants. 2) Smog & Acid Deposition. Our Atmosphere . IS. a Resource. Atmospheric Composition. N. 2. . 78.08%. O. 2. . 20.95%. Argon 0.93%. Carbon dioxide 0.04. % (400 . Assistant Professor. Department of Civil Engineering. SAL Institute of Technology & Engineering Research. Content . . Definition, Composition of atmospheric air, Classification and sources of air pollutants. Effects of air pollution on human, plant and material, Air pollution control methods, equipment and safety.. (. Manihot. . esculentum. ),. . DELTA . STATE..  . R. F. . NJOKU-TONY. DEPARTMENT . OF ENVIRONMENTAL TECHNOLOGY. FEDERAL UNIVERSITY OF TECHNOLOGY, OWERRI. CORRESPONDING AUTHOR: Email: tonyrosefeechi@yahoo.com. Aim of the session. To understand there are many air pollutants, which have multiple sources and the impacts. Lesson objectives. To name air pollutants and their sources . To describe how to improve air quality locally. 1. Air Pollution. Air Pollution and Weather. Air pollution and weather are linked in two ways. One way concerns the influence that weather conditions have on the . dilution. and . dispersal. of air pollutants. . The presence . of chemicals in the atmosphere in quantities and duration that are harmful to human health and the . environment.. Two types of pollutants:. Primary pollutants . : . products of natural events (like fires and volcanic eruptions) and human activities added directly to the .