PPT-General Properties of Pollutants!

Pollution is energy or matter released into the environment with the potential to cause adverse changes to an ecosystem They are usually released by human activities . 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.. Who are we?. What do we do?. What is air pollution?. Discussion in groups. Pollution. The process of making the air, water or soil dirty. . Pollutants. A substance that makes the air, water or soil dirty.. 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 . Outdoor Air Pollution. Stationary and Mobile Sources of Air Pollution. Two Sources of Air Pollution. 1. . Stationary Sources:. have a relatively fixed location. Point Sources: . Fugitive Sources: . Area Sources:. Air Quality and Remote Sensing. What is “Air Quality”?. The term “. Air Quality. ” can have many different definitions:. “A measure of the condition of air relative to the requirements of one or more biotic species and or to any human need or purpose.” . Marti Blad, Ph.D., P.E. .. Yavapai Apache Nation. 2. What is the Difference?. 3. What we will learn. Pollutants move and spread in air. Up and down (vertical). Away and outward (horizontal). Dispersion vs Diffusion. = gases & particulate material added to the atmosphere. Can affect climate or harm people. Air pollution. = the release of pollutants. Outdoor (ambient) air pollution. = pollution outside. Has recently decreased due to government policy and improved technologies in developed countries. Mrs. Page. ESS 2015. Significant. . Ideas. Pollution is a highly diverse phenomenon of human disturbances in ecosystems.. Management strategies can be applied at different levels. . Application & Skills. 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. Family: Euphorbiaceae Hura Possumwood Other Common Names: Arbol del diablo, Haba (Mexico), Jabillo (Central America), Ceiba amarilla, Ceiba de Leche (Colombia), Ceiba blanca, Ceiba habillo (Venezuela) June 2002 Virginia Semiconductor 1501 Powhatan Street, Fredericksburg, VA 22401-4647 USA Phone: (540) 373-2900, FAX (540) 371-0371 www.virginiasemi.com , tech@virginiasemi.com A. Introduction Th Prof. Rajesh . Bhagat. . Asst. Professor, . CED, YCCE. , . Nagpur. B. . E. (Civil . Engg. .) M. Tech. (. Enviro. . . Engg. .). GCOE. , Amravati VNIT, Nagpur. Criteria Pollutants are certain pollutants known to be harmful to human health and welfare and for which National Ambient Air Quality Standards are established. EPA has identified and set standards to protect human health and welfare for ozone, carbon monoxide, particulate matter, sulfur dioxide, lead, and nitrogen oxide.. 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 .