Pollution

1
Pollution

• Types
• Air Pollution
• Water Pollution

2
Pollution

• Pollution is any material or product produced by
  humans in quantity and disposed of in such a way
  that interferes with the health of living
  organisms and with the natural environments and
  processes of Earth
• Pollution today results from two factors
• Advanced technologies of the Industrial Age
• Increased population densities in urban areas
  mostly in MDCs

3
Types of Pollutants

• There are two types of pollutants persistent and
  non-persistent
• Persistent pollutants remain in the environment
  for many years without breaking down. They are
  mostly made by humans
• Non-persistent pollutants do not say for long
  periods because they are biodegradable. Human
  waste, food, other organic material fall into
  this category. Some are chemically produced

4
Air Pollution

• Classified into two types primary air
  pollutants, and secondary air pollutants
• Primary pollutants come directly from
  manufacturing and industrial processes like
  mining, and refining that result in a release of
  a variety of gases, vapours and solid particles
  in the atmosphere
• Secondary pollutants are caused when primary
  pollutants interact with each other, or other
  compounds the atmosphere (smog, acid rain, acid
  deposition)

5
Water Pollution

• Humans believed for centuries that water was a
  cleaning agent capable of absorbing and purifying
  wastes
• Today water pollution ranks as one of the most
  serious environmental concerns in MDCs and LDCs
• Water pollution has seriously affected rivers,
  lakes and oceans alike.

6
Activity 12

• Please read text on white background only on p.
  130 140 in your text.
• Record any definitions for any vocabulary in bold
  print.
• Please answer all of question 1 on page 142.
• List and briefly explain three primary air
  pollutants.

7
Activity 12 (contd)

• 5. In a table like the one below briefly outline
  how each form of secondary air pollution is
  created and the affects of each.

8
Activity 12 (contd)

• 6. Create a concept map titled Water Pollution
  that outlines factors and hazards relating to
  water pollution in rivers, lakes and oceans. Use
  your text as the primary resource.

9
Reference

• Corbin, B. et al (2000). Global connections.
  Oxford Press, Ont.