Air Pollution

Air pollution; Indoor air pollution; Household air pollution; Ambient/outdoor air pollution

_____ _______ is contamination of the indoor or outdoor environment by any chemical, physical, or biological agent that modifies the natural characteristics of the atmosphere. ______ _____ _____ is where contaminants that accumulate inside buildings without proper ventilation. _____ ______ _____ is where contaminants contributed by personal processes, like cooking. _____ _____ ______ is where pollution in outside air

plume

A _____ emanates and dissipates from a specific point source (like a smokestack)

Stratification

_______ is where air separates due to density (driven by temperature)

2

Air pollution is the #____ cause of death in the world

Point sources; Nonpoint sources

______ ______ are specific, identifiable outlets. ______ _______ are dispersed (area) or mobile sources

Primary air pollutants; Secondary air pollutants

_____ _____ _____ are released from the source and pose a risk to air quality in their current form. _____ ______ ______ are created from primary air pollutants through chemical reactions

Haze;

_______ decreases visibility because sunlight interacts with tiny particles in the air

Natural; Anthropogenic

______ sources of air pollution are just that: natural processes. Natural processes can be exacerbated by human activities. _______ sources of air pollution are caused by human activity.

Smog

______ is hazy air pollution that is a mixture of primary and secondary pollutants. There is industrial smog, photochemical smog, and vog (from volcanoes)

Deposition

_______ generally refers to the settling out of airborne pollution onto vegetation, soil, or water surfaces

Acid rain

_____ _____ forms when sulfur dioxide (SO2) or nitrogen oxides (NOx) react with water, oxygen, and other chemicals to form sulfuric and nitric acids

EPA; Clean Air Act

The ______ was created in 1970 by Richard Nixon (R). Nixon also signed the ____ _____ _____ in 1970 to regulate stationery and mobile sources