This unique addition to reference literature provides an introduction to the major concepts and contemporary issues that are essential for students of environmental science and environmental studies to know. With over 200 entries authored by world-class names like Anthony Brazel, John Day and Edward Keller, this text is divided into six sections: Environmental Science, Environments, Paradigms & Concepts, Processes & Dynamics, Scales & Techniques, and Environmental Issues.  

Pollution of Air and Water

Pollution of air and water

Throughout human history, there has always been some level of local air and water pollution, but with the coming of the industrial age, and especially in the 20th century, human activity is causing air and water pollution on a global scale.

Air pollution can be categorized in several ways. There are stationary and mobile sources of air pollution. Stationary sources include point, fugitive, and area sources. Point sources come from one or more fixed sources such as industrial smoke stacks. Fugitive sources come from open areas exposed to winds such as burning of agricultural fields and dust from construction sites. Area sources are areas where there are several air pollution emitters such as a small town or ...

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