PPT-Transport of Air Pollutants

Marti Blad PhD PE 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. 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 . 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. Chapter 8. POLLUTION AND POLLUTANTS. Pollution – the presence of harmful substances in the environment.. Pollutant – any substance that causes pollution.. Air pollutant – any material that gets into the air and degrades its quality (may be gases or small particles).. 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.. Poznań University of . technology. Institute. of . combustion engines and . transport. Authors. : Jerzy . Merkisz. , Jacek . Pielecha. , Jarosław Markowski, Marta Galant, Remigiusz Jasiński, Dawid . Stretch across much of India, Bangladesh, China, and the western Pacific Ocean. Air pollution connects the world. Pollutants can circle the globe in about two weeks. Stricter air pollution standards and continued shifts towards cleaner fuels are needed. = 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. There is no place on Earth that isn’t affected by air pollution…. Air pollution. : presence of chemicals in the atmosphere in concentrations high enough to harm organisms, ecosystems, human-made materials or to alter climate. 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.. 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. Subject Code: 18CV732. Name of the Faculty: Dr Vyshali. K S School of Engineering and Management, Bangalore-560109. Classification of Pollutants. Natural contaminants: e.g., natural fog, pollen grains, bacteria and products of volcanic eruption. 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 .