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Chapter 12 - Air

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Across
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The sudden influx of acidic water that causes a rapid change in the pH of a body of water.
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Minerals that form long, thin fibers that are valued for their strength and resistant to heat, but can cause many health problems.
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Measure of how acidic or basic a substance is.
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A pollutant that is put directly into the air by human activity
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Organic Chemicals that vaporize readily and form toxic fumes.
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When harmful substances build up in the air to unhealthy levels.
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Buildings that have very poor air quality have this condition.
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A naturally occurring radioactive element produced by the decay of of uranium.
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Precipitation such as rain, sleet, or snow that contains a high concentration of acids.
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Formed when a primary pollutant comes into contact with other primary pollutants or with naturally occurring substances such as water vapor and a chemical reaction takes place
Down
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Vehicles that have no tailpipe emissions, no emissions from gasoline, and no emission-control systems that deteriorate over time.
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Increase in the concentration of acid in a body of water, especially as a result of acid precipitation.
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Air pollution that hangs over urban areas and reduces visibility.
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The intensity of sound is measured in these units.
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Machine that moves gasses through a spray of water that dissolves many pollutants.
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When the air above is warmer than the air below, air pollution can get trapped near earth's surface.