Indoor Pollution

1
Indoor Pollution

• What you may be facing more than 20 hrs a day

2
Indoor Pollution

• We spend about 90 of our time at homes, in
  offices and other indoor environment.
• Indoor pollution can pose great threat to
  peoples health

3
What is Indoor Pollution?

• Air pollution dominant
• Damage of indoor environment
• Enclosed
• Accumulation of pollutants
• Little dilution effect
• High intensity

4
Causes of Indoor Pollution

• Non Biological
• Chemicals (e.g. solvents in detergents/furniture
  glue/markers etc.)
• Combustion (cigarette/fuel)
• Vaporized oil (from cooking)
• Radon

5
Causes of Indoor Pollution

• Non Biological
• Asbestos
• Poor ventilation
• Dust/fibers/particulates (from carpet/furniture
  etc.)
• Insecticides

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Causes of Indoor Pollution

• Biological
• Bacteria
• Fungi and allergen growth
• Molds

7
Causes of Indoor Pollution

• Biological
• Insects (e.g. dust mites)
• Animal dander (tiny scales from hair, feathers,
  or skin)
• Crowded environment

8
Effects of Indoor Pollution

• Lung cancer
• Respiratory problems
• Asthma
• Weakening of immune system
• Nausea and fatigue
• Low working efficiency
• Headache
• Drowsiness
• Itchy eyes
• Skin irritation

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Cases of Indoor Pollution

• Offices

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Cases of Indoor Pollution

• Classrooms

11
Cases of Indoor Pollution

• MTR

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12
Solutions

• Improve ventilation
• Filters
• Air purifiers (http//www.peakpureair.com/products
  .htm) (http//www.air-purifiers-america.com/catego
  ry.asp)

13
Solutions

• Air dehumidifiers
• Indoor design
• Prohibit smoking
• Use furniture without methanal leakage

14
Solutions

• Replace/reduce using of organic solvents
• Prevent the use of insecticides
• Prohibit the use of asbestos