BIO 599/799
Environmental Science

Air & Air Pollution

Earth's atmosphere:

Air pollution

Major Classes of Air Pollutants:

Ozone Animation
8-hour Average Concentration
(Yellow = moderate ozone levels;
Orange = Unhealthy for sensitive groups, e.g., those with respiratory diseases such as asthma)
Wednesday, 25 July 2001
Source: EPA

Source: Environmental Protection Agency
Map shows where pollutants exceeded EPA standards in September, 1996.


Effects of Air Pollution on Human Health

Effects of Air Pollution on other animals & plants:

Acid Precipitation

Where do acids come from?

Acid Transport

Source: EPA

Average annual pH of rainfall:

The pH scale and acid rain:

Effects of Acid Deposition

Controlling Acid Deposition

Global Warming

Source: EPA

What do we know?

Possible Effects of a Warmer World


Slowing Global Warming

Any progress in meeting these objectives?

Greenhouse Gas Emissions in the U.S.
Source: EPA

Useful links:

Climate Ark - The Premier Climate Change & Renewable Energy Portal

EPA's Global Warming Site

Global Warming: Early Warning Signs

Guide to the Climate Change Negotiation Process

Back to BIO 599/799 Syllabus