hands+in+tha+ERRRR+(AIR)


 * AIR**

78.1% Nitrogen 20.9% Oxygen 1% Argon, Carbon Dioxide, Methane, Water Vapor.
 * Atmosphere Composition:**

Troposphere: 0-10km- contians most of the water vapor in the atmosphere, where weather occurs Stratosphere: 10-50km - contains the ozone layer Mesosphere: 50-80km Thermosphere: 80-100km
 * Atmospheric Levels:**



Gravitational force keeps air near the earth's surface- it is not static. It will "move" if it heats, expands and then rises.

The pollution in an area is related the number of people living in that area. - Carbon monoxide - Hydrocarbons - Particulate matter - Sulfur Dioxide - Nitrogen Oxides - Nitrogen Dioxide - Ozone - Sulfur Dioxide - Particulate Matter - Carbon Monoxide - Lead
 * Surface Wind Patterns**
 * Pollution**
 * Primary Pollutants-** pose health risks in unmodified form
 * Secondary Air Pollutants**- things that form naturally from reactions in the atmosphere, like ozone
 * Criteria Air Pollutants-** The EPA uses these to grade air quality-

- 90% comes from vehicles on and off road - sharp odor - 65% comes from burning coal Lead - -
 * Carbon Monoxide**
 * -** Produced when organic materials are burned
 * Particulate Matter**
 * -** Solid particles and liquid drops, dust and carbon particles
 * Sulfur Dioxide**
 * -** sulfur and oxygen, produced when fuels that contain sulfur are burned