<ul><li>The water is a natural resource over 70% of the earth’s surface and without it the life on the earth would nonexis...
<ul><li>We use water daily in our homes and industries, about 150 gallons (525 liters) per day per person. </li></ul>
<ul><li>The water we use is taken from lakes and rivers, and from underground (groundwater) and after we have used it and ...
<ul><li>Water pollution is any chemical, physical or biological change in the quality of water that has a harmful effect o...
What are some different types of water pollution?
Microbiological <ul><li>Disease-causing (pathogenic) microorganisms, like bacteria, viruses and protozoa can cause swimmer...
Chemical <ul><li>Whole variety of chemicals from industry, such as metals and solvents, and even chemicals which are forme...
Petroleum <ul><li>Often pollutes water bodies in the form of oil, resulting from oil spills. </li></ul>
Radioactive substances <ul><li>Are produced in the form of waste from nuclear power plants, and from the industrial, medic...
Heat <ul><li>Heat is a pollutant because increased temperatures result in the deaths of many aquatic organisms.  These dec...
Major Pollutants: <ul><li>Soil  </li></ul><ul><li>Grass clippings </li></ul><ul><li>Fertilizers and Pesticides </li></ul><...
<ul><li>Scientists believe that fecal matter from pets is a major source of bacteria in urban waterways.   </li></ul>
How do we prevent water pollution?
<ul><li>We have to remove the pollutants before the water gets back into the environment. </li></ul>
<ul><li>In urban areas in most developed countries, the wastewater from homes, businesses and factories is collected by a ...
<ul><li>Homes in non-urban areas that are not connected to a sewer are usually required by their town to have on-site trea...
<ul><li>Although some kinds of water pollution can occur through natural processes, it is mostly a result of human activit...
Conclusions .
<ul><li>The water is every day less and we spend more of the necessary and  is very difficult of separating it of the poll...
<ul><li>For this and more information you can find it on these links. </li></ul><ul><li>http://www.umich.edu/~gs265/societ...
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Water Pollution

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Water Pollution

  1. 2. <ul><li>The water is a natural resource over 70% of the earth’s surface and without it the life on the earth would nonexistent. </li></ul>
  2. 3. <ul><li>We use water daily in our homes and industries, about 150 gallons (525 liters) per day per person. </li></ul>
  3. 4. <ul><li>The water we use is taken from lakes and rivers, and from underground (groundwater) and after we have used it and contaminated it most of it returns to these locations. </li></ul>
  4. 5. <ul><li>Water pollution is any chemical, physical or biological change in the quality of water that has a harmful effect on any living thing that drinks or uses or lives in it. </li></ul>
  5. 6. What are some different types of water pollution?
  6. 7. Microbiological <ul><li>Disease-causing (pathogenic) microorganisms, like bacteria, viruses and protozoa can cause swimmers to get sick. Fish and shellfish can become contaminated and people who eat them can become ill. Some serious diseases like polio and cholera are waterborne. </li></ul>
  7. 8. Chemical <ul><li>Whole variety of chemicals from industry, such as metals and solvents, and even chemicals which are formed from the breakdown of natural wastes (ammonia, for instance) are poisonous to fish and other aquatic life. </li></ul>
  8. 9. Petroleum <ul><li>Often pollutes water bodies in the form of oil, resulting from oil spills. </li></ul>
  9. 10. Radioactive substances <ul><li>Are produced in the form of waste from nuclear power plants, and from the industrial, medical, and scientific use of radioactive materials. </li></ul>
  10. 11. Heat <ul><li>Heat is a pollutant because increased temperatures result in the deaths of many aquatic organisms.  These decreases in temperatures are caused when a discharge of cooling water by factories and power plants occurs. </li></ul>
  11. 12. Major Pollutants: <ul><li>Soil </li></ul><ul><li>Grass clippings </li></ul><ul><li>Fertilizers and Pesticides </li></ul><ul><li>Litter </li></ul><ul><li>Motor oil/ Auto Fluids </li></ul><ul><li>Pet waste </li></ul>
  12. 13. <ul><li>Scientists believe that fecal matter from pets is a major source of bacteria in urban waterways. </li></ul>
  13. 14. How do we prevent water pollution?
  14. 15. <ul><li>We have to remove the pollutants before the water gets back into the environment. </li></ul>
  15. 16. <ul><li>In urban areas in most developed countries, the wastewater from homes, businesses and factories is collected by a system of underground pipes– sewers which carry it to one or more central treatment facilities. </li></ul>
  16. 17. <ul><li>Homes in non-urban areas that are not connected to a sewer are usually required by their town to have on-site treatment systems. </li></ul><ul><li>Most common for single homes are septic systems, which consist of a buried tank connected to a set of perforated pipes, embedded in gravel, which distribute the water into the soil. </li></ul>
  17. 18. <ul><li>Although some kinds of water pollution can occur through natural processes, it is mostly a result of human activities then we should try not to return the waste waters to the rivers. </li></ul>
  18. 19. Conclusions .
  19. 20. <ul><li>The water is every day less and we spend more of the necessary and is very difficult of separating it of the pollutants and this water cannot be used it as normal water but it can be the only way not to return it dirty in rivers and lakes but the really way to maintain the water as clean as possible it is not to contaminate it with substances or dangerous products that damage the environment. </li></ul>
  20. 21. <ul><li>For this and more information you can find it on these links. </li></ul><ul><li>http://www.umich.edu/~gs265/society/waterpollution.htm </li></ul><ul><li>http://www.lenntech.com/Water-Pollution-FAQ.htm </li></ul><ul><li>http://www.geocities.com/RainForest/5161/water1.htm </li></ul>

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