Pollution <ul><li>Any addition to air, water, soil, or food that threatens the health, survival, or activities of humans o...
Vocabulary <ul><li>Point source : Single, identifiable sources a such as smoke stacks of a power plant from which pollutan...
<ul><li>Concentration : The amount of pollutants per unit of volume or weight of air, water, soil, or body weight. </li></...
<ul><li>Part per billion (ppb): Refers to 1 part of pollutant per 1 billion parts of medium </li></ul><ul><li>Part per tr...
<ul><li>Biodegradable pollutants : Complex chemical pollutants metabolized into simpler chemicals by living organisms. </l...
Where do pollutants come from? <ul><li>Solid/liquid/gaseous by-products or wastes produced when a resource is extracted, p...
<ul><li>Environmental pollution: volcanic eruptions </li></ul><ul><li>Anthropogenic pollution: burning coal, usually near ...
The Harm Caused by Pollution <ul><li>The factors that determine pollution's harmful effects are it’s chemical nature or ho...
Equivalents of some Concentration Units <ul><li>Unit 1ppm 1ppb 1ppt </li></ul><ul><li>Time 1 minute in 2yrs 1sec/32y...
<ul><li>Disrupt life -supports system for humans and animals, damage wildlife/human life/health, damage property, nuisance...
What can we do to help clean up? <ul><li>Lower concentration of pollutant, dilute it in large volume of air or water </li>...
Recycle <ul><li>Refuse </li></ul><ul><li>Reduce </li></ul><ul><li>Reuse </li></ul><ul><li>Recycle </li></ul>
Problems with Pollution cleanup <ul><li>Temporary relief if consumption level and pop. continue to grow w/o improvements i...
Prevention and Rewards <ul><li>Cheaper and more effective. </li></ul><ul><li>99% US $ to clean up 1% prevention. </li></ul...
Remaining Problems Abroad <ul><li>China, Russia, Poland, many eastern European countries, and developing countries far beh...
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Pollution (General)

Published on: Mar 4, 2016
Published in: Technology      Business      
Source: www.slideshare.net


Transcripts - Pollution (General)

  • 1. Pollution <ul><li>Any addition to air, water, soil, or food that threatens the health, survival, or activities of humans or living organisms </li></ul>
  • 2. Vocabulary <ul><li>Point source : Single, identifiable sources a such as smoke stacks of a power plant from which pollutants emerge from. </li></ul><ul><li>Nonpoint Source : Dispersed, usually difficult to identify sources from which pollutants come from . </li></ul>
  • 3. <ul><li>Concentration : The amount of pollutants per unit of volume or weight of air, water, soil, or body weight. </li></ul><ul><li>Persistence : How long the pollutants stay in the air. </li></ul><ul><li>Part per million (ppm): The concentration of 1 part pollutant per 1 million parts gas, liquid, or solid mixture. </li></ul>
  • 4. <ul><li>Part per billion (ppb): Refers to 1 part of pollutant per 1 billion parts of medium </li></ul><ul><li>Part per trillion (ppt): Refers to 1 part of pollutant per 1 trillion parts of medium. </li></ul><ul><li>Degradable/Nonpersistant pollutants: Pollutants broken down completely by natural physical, chemical, biological process </li></ul>
  • 5. <ul><li>Biodegradable pollutants : Complex chemical pollutants metabolized into simpler chemicals by living organisms. </li></ul><ul><li>Slowly/Persistent degradable pollutants : Pollutants that take decades or longer to degrade. </li></ul><ul><li>Non-degradable pollutants : Cannot be broken down through the natural process. </li></ul><ul><li>Pollution prevention/Input pollution control : The introduction of less harmful chemicals or processes to slow/eliminate the production of pollutants. </li></ul><ul><li>Pollution cleanup/ Output pollution control : Cleaning up pollutants after they have been produced. </li></ul>
  • 6. Where do pollutants come from? <ul><li>Solid/liquid/gaseous by-products or wastes produced when a resource is extracted, processed, used, or made into something new </li></ul><ul><li>unwanted energy emissions </li></ul>
  • 7. <ul><li>Environmental pollution: volcanic eruptions </li></ul><ul><li>Anthropogenic pollution: burning coal, usually near urban areas where concentrated pollutants, industrialized agriculture </li></ul><ul><li>Pollution spreads without boundaries. </li></ul><ul><li>Point sources and nonpoint sources </li></ul><ul><li>Easier to control point sources </li></ul>
  • 8. The Harm Caused by Pollution <ul><li>The factors that determine pollution's harmful effects are it’s chemical nature or how active or harmful it is for the organisms in it. </li></ul><ul><li>Its concentration in the area by ppm, ppb, or ppt </li></ul><ul><li>Pollutants persistence and whether it is degradable, nonpresistant, slowly, persistent, biodegradable, pollutants </li></ul>
  • 9. Equivalents of some Concentration Units <ul><li>Unit 1ppm 1ppb 1ppt </li></ul><ul><li>Time 1 minute in 2yrs 1sec/32yrs 1sec/320centuries </li></ul><ul><li>Money $.01 in 10,000 $.01 in 10,000,000 $.01 in 1000000000 </li></ul><ul><li>Weight 1 pinch salt in 1 pinch salt in 1 pinch salt 10,000 </li></ul><ul><li>10 kg potato chips 10 tons potato chips tons potato chips </li></ul><ul><li>Volume 1 drop in 1000 L of 1 drop in 1000000 L 1 drop in 1000000000 </li></ul><ul><li>water of water of water </li></ul>
  • 10. <ul><li>Disrupt life -supports system for humans and animals, damage wildlife/human life/health, damage property, nuisance, noise, smell, taste </li></ul><ul><li>know side effects of 10% of 72,000 synthetic chemicals in use with 1000 new ones yearly </li></ul>
  • 11. What can we do to help clean up? <ul><li>Lower concentration of pollutant, dilute it in large volume of air or water </li></ul><ul><li>Pollution prevention </li></ul><ul><li>Pollution in-put control </li></ul><ul><li>Pollution clean up </li></ul><ul><li>Pollution output control </li></ul>
  • 12. Recycle <ul><li>Refuse </li></ul><ul><li>Reduce </li></ul><ul><li>Reuse </li></ul><ul><li>Recycle </li></ul>
  • 13. Problems with Pollution cleanup <ul><li>Temporary relief if consumption level and pop. continue to grow w/o improvements in pollution control. </li></ul><ul><li>Removes pollutants from one place to another </li></ul><ul><li>Once pollutants are dispersed in air, water, and soil in high concentrations too expensive to reduce </li></ul>
  • 14. Prevention and Rewards <ul><li>Cheaper and more effective. </li></ul><ul><li>99% US $ to clean up 1% prevention. </li></ul><ul><li>Stick approach- regulations and taxes on polluters </li></ul><ul><li>Carrot approach- tax write-off and subsides for those who prevent pollution </li></ul>
  • 15. Remaining Problems Abroad <ul><li>China, Russia, Poland, many eastern European countries, and developing countries far behind in pollution control. </li></ul><ul><li>Russia spill 1 out of 10 barrels of oil every 6hr </li></ul><ul><li>Over use of pesticides </li></ul><ul><li>Water diverted to use as agriculture </li></ul><ul><li>Nuclear pollution </li></ul>

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