1. Section 2: Air, Noise, and Light Pollution
Chapter 12: Air
Section 2:
Air, Noise, and Light Pollution

2. Objectives
Describe three possible short-term effects and long-term effects of air pollution on human health.
Explain what causes indoor air pollution and how it can be prevented.
Describe three human health problems caused by noise pollution.
Describe solutions to energy waste caused by light pollution.

3. Air Pollution
Air pollution can cause serious health problems, especially for people who are very ______, very ____, or who have heart or ______ problems.

4. Air Pollution
Air pollution ____ to the effects of existing diseases such as ________, heart disease, and ______ ________.

5. Air Pollution
The __________ _________ ________ has estimated that Americans pay tens of billions of dollars a year in ______ _____ to treat _________ diseases caused by air pollution.

6. Short-Term Effects of Air Pollution on Health
Many of the effects of air pollution on people’s _______ are short-term and ____________ if their exposure to air pollution decreases.

7. Short-Term Effects of Air Pollution on Health
The _____ - _____ effects of air pollution on people’s health include headache, ________, irritation to the eyes, nose and _______; coughing; ______ in the _____ ______ and upper respiratory infections, such as ________ and pneumonia.

8. Short-Term Effects of Air Pollution on Health
Pollution can also make the conditions of ________ and emphysema ________ for certain individuals.

9. Long-Term Health Effects of Air Pollution
_____-_____ effects on health that have been linked to air pollution include emphysema, lung cancer, and heart disease.

10. Long-Term Health Effects of Air Pollution
Long-term exposure to air pollution may _______ medical conditions suffered by ______ ______ and may damage the lungs of _______.

11. Indoor Air Pollution
The quality of air inside a ____ or ______ is sometimes ______ than the quality of air _____.

12. Indoor Air Pollution
________ and other industrial ________ are major sources of pollution.
These compounds can be found in _____, building materials, _______, and furniture, particularly when these items are _____.
See your textbook for a chart on indoor pollution.

13. Indoor Air Pollution
_____-______ syndrome is a set of symptoms, such as _______, fatigue, eye irritation, and _________, that may affect workers in modern, _____ office buildings.
Sick-building syndrome is believed to be caused by _____ ____ ______.

14. Indoor Air Pollution
Sick-building syndrome is most common in ___ ______ where buildings are tightly sealed to keep out the _____.

15. Indoor Air Pollution
Identifying and removing the sources of indoor air pollution is the most effective way to ________ good indoor quality.
__________, or mixing outdoor air with indoor air, is also _______ for good air quality.

16. Indoor Air Pollution
When activities such as _________ and ________, which cause indoor air pollution, are undertaken, _______ should be _______.

17. Radon Gas Radon gas is ______, tasteless, ______, and radioactive.
_______ is one of the elements produced by the decay of __________, a radioactive element that occurs naturally in the Earth’s _______.

18. Radon Gas
Radon can seep through _____ and _______ in foundations into homes, offices, and schools, where it adheres to ______ _______.

19. Radon Gas
When people inhale the ____, radon enters their ____. In the lungs, radon can _______ the genetic material in cells that line the air passages.
Such damage can lead to ________, especially among people who smoke.
Radon is the ______-______ cause of lung cancer in the United States.

20. Asbestos
________ is any of six ________ minerals that form _______ of minute fibers that are heat resistant, _________, and durable.
Asbestos is primarily used as an _______ and as a _____ ___________, and it was used extensively in building materials.

21. Asbestos
However, for all of its uses, the government banned the use of most asbestos products in the early _____s.
That was because exposure to _______ in the ___ is very dangerous.

22. Asbestos
Asbestos _____ can ____ and ____ the lungs, causing the disease _________.
_______ of the disease have more and more difficulty breathing and may eventually die of _____ _______.

23. Noise Pollution
A sound of any kind is called a _____. However, some noises are _______ and can cause noise pollution.
Health problems that can be caused by noise pollution include loss of hearing, ______ ______ _____, and ______.

24. Noise Pollution
Noise can also cause loss of ___, which may lead to _____ productivity at work and in the classroom.

25. Noise Pollution
A _______ is the most common unit used to _______ loudness, and is abbreviated ____.

26. Noise Pollution
The quietest sound that a human ___ can hear is represented by __ ___. For each increase in decibel _______, the decibel level is ___ times ______ than the previous level.

27. Noise Pollution
A sound of ___ dB is at the threshold of ____. Permanent _______ may come as a result of _____ exposure to sounds over 120 dB.

28. Noise Pollution

29. Light Pollution
Light pollution does not present a _____ hazard to human health, but it does _______ affect our ________.

30. Light Pollution
The use of _____ ______ in ____ areas is diminishing our view of the _____ ____.
In urban areas, the sky is often much ________ than the natural sky.

31. Light Pollution
A more important environmental concern of inefficient lighting is ____ ____. Energy is wasted when a light is directed ______ into the night sky and ___ to space. Examples include lighting on billboards, _____-____ ________, and the lighting of building exteriors.

32. Light Pollution
Solutions to this problem include shielding light so it is directed downward, using ____ _____ so that light is used only when ______, and using low-pressure sodium sources, which are the most _____-_____ sources of _____.

33. End of section 2