Air, Noise,

1
Air, Noise, Light Pollution

• Chapter 12 Section 2
• Key Terms Notes

2
Sick-Building Syndrome

• Symptoms that may affect workers in modern,
  airtight office buildings. Believed to be caused
  by indoor air pollutants

3
Cont.

• Symptoms can be fatigue, dizziness, headache, and
  eye irritation

4
Asbestos

• Several minerals that form long thin fibers.
  These fibers are heat resistant, flexible
  durable.

5
Decibel (dB)

• The unit of measurement for the intensity of sound

6
Generally, how long does air pollution affect
peoples health?

• Generally, effects are short-term, and reversible

7
What are the short term effects of Air pollution?

• Headache
• Nausea
• Irritation to Eyes, Nose, Throat
• Tightness in Chest

• Coughing
• Upper Respiratory Infection
• Bronchitis
• Pneumonia

8
Cont.

• Worsen asthma and emphysema

9
What are the long term effects of Air Pollution?

• Emphysema
• Lung Cancer
• Heart Disease

10
Who is particularly affected by air pollution?

• the very young, the very old, or people with
  heart and/or lung problems

11
How does indoor air quality compare to outdoor
air quality?

• Sometimes indoor air is worse than outside air

12
Where do you find the compounds that help pollute
indoor air?

• Carpets
• Building Materials
• Paints
• Furniture

13
Where do you usually find buildings with
sick-building syndrome?

• Most common is hot places, like Florida.

14
What building conditions help cause sick-building
syndrome?

• Buildings are tightly sealed to keep outside air
  out.

15
How do you maintain good indoor air quality?

• Identify and Remove sources of air pollution
• Use Ventilation

16
What is ventilation? When should it be increased?

• Mixing outdoor air with indoor air
• Increase ventilation when renovating (which could
  increase indoor air pollution)

17
What is Radon gas? How does it enter a house?
Why is it a problem?

• Colorless, tasteless, odorless gas produced by
  the decay of Uranium
• Seeps through cracks in foundation

18
Cont.

• Destroys genetic material in lungs when inhaled
• 2nd leading cause of lung cancer

19
How is asbestos used?

• As insulation and a fire retardant
• Building materials

20
When was asbestos banned?

• US government banned most use in the early 1970s

21
Why is exposure to asbestos dangerous?

• Fibers inhaled cut and scar the lungs
• Disease Asbestosis
• Difficulty breathing till death of heart failure

22
What happens if asbestos is found in a building?

• Removal-billions have been spent already on
  removal

23
What is noise pollution? Name three examples of
noise pollution.

• Unnecessary noise or sound

• Construction
• City traffic
• Home Appliances

• Airplanes
• Factories
• Lawn mowers

24
What health problems are caused by noise
pollution?

• Loss of Hearing
• High blood pressure
• Stress

25
At what level is a sound considered painful?
What is the result of prolonged exposure?

• 120 dB
• Permanent Deafness

26
Does light pollution pose a direct hazard to
human health? Explain

• No, but it negatively affects our environment

27
Why is it a concern?

• Decreased view of night sky
• Urban lights often brighter than natural sky
• Waste of energy

28
Name some ways to correct light pollution.

• Shielding lights to direct beam down
• Time controls on lights
• Use low pressure sodium Sources-most energy
  efficient