air pollution unit 2 section 2 1. air, noise and light pollution section 2 2

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AIR POLLUTION Unit 2 Section 2 1

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Page 1: AIR POLLUTION Unit 2 Section 2 1. AIR, NOISE AND LIGHT POLLUTION Section 2 2

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AIR POLLUTIONUnit 2 Section 2

Page 2: AIR POLLUTION Unit 2 Section 2 1. AIR, NOISE AND LIGHT POLLUTION Section 2 2

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AIR, NOISE AND LIGHT POLLUTIONSection 2

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Air Pollution• Air pollution can cause serious health problems,

especially for people who are very young, very old, or who have heart or lung problems.

• Air pollution adds to the effects of existing diseases such as emphysema, heart disease, and lung cancer.

• The American Lung Association has estimated that Americans pay tens of billions of dollars a year in health costs to treat respiratory diseases caused by air pollution.

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Short Term Effects of Air Pollution on Health

• Many of the effects of air pollution on people’s health are short-term and reversible if their exposure to air pollution decreases.

• The short-term effects of air pollution on people’s health include headache; nausea; irritation to the eyes, nose and throat; coughing; tightness in the chest; and upper respiratory infections, such as bronchitis and pneumonia.

• Pollution can also make the conditions of asthma and emphysema worse for certain individuals.

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What’s going on here?

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Light Pollution

• A more important environmental concern of inefficient lighting is energy waste. Energy is wasted when a light is directed upward into the night sky and lost to space. Examples include lighting on billboards, poor-quality street lights, and the lighting of building exteriors.

• Solutions to this problem include shielding light so it is directed downward, using time controls so that light is used only when needed, and using low-pressure sodium sources, which are the most energy-efficient sources of light.

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To sum things up…

• Using the diagram provided, indicate the organs that are most likely to be affected by air pollution, including both short-term and long-term effects of pollution on each of these organs.

• Go back and fill in the section objectives foldable

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