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HI, My name is: ASTRI NAPITUPULU (family name)

HI, My name is: ASTRI NAPITUPULU (family name). You can call me “ASTRI” . ＩＮＤＯＮＥＳＩＡ イ ンドネシア. Tokyo. 7 hours flight. Jakarta. 18,307  Islands!!. 300  ethnic groups. My ethnic group: B A T A K. LAKE “TOBA”: World’s largest volcanic lake. POLLUTION of Lake TOBA:

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HI, My name is: ASTRI NAPITUPULU (family name)

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  1. HI, My name is:ASTRI NAPITUPULU (family name) You can call me “ASTRI” 

  2. ＩＮＤＯＮＥＳＩＡインドネシア

  3. Tokyo 7 hours flight Jakarta

  4. 18,307  Islands!!

  5. 300  ethnic groups

  6. My ethnic group: B A T A K

  7. LAKE “TOBA”: World’s largest volcanic lake

  8. POLLUTION of Lake TOBA: Natural Cause CAUSE 1: NATURAL CAUSE: water hyacinth plant During Rainy Season (October-August): Overpopulation

  9. Overpopulation of Water Hyacinth EFFECT: degrade water quality by blocking photosynthesis greatly reduces oxygen levels in the water  Threat for fish and other water plants

  10. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 1: DAILYACTIVITIES BY PEOPLE LIVING NEARBY

  11. POLLUTION of Lake TOBA: Results of Human Activities HAZARD/ DANGER: Chemical Compounds from the detergents/ soaps and the dirt/oil will pollute the lake water

  12. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 2: TRASH/ GARBAGE TOSSED AWAY BY: (1) PEOPLE LIVING NEARBY (2) PEOPLE PASSING BY

  13. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 3A: PIG FARMS Managed by: People living nearby

  14. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 3B: PIG FARMS Managed by: Both Small and big industries

  15. POLLUTION of Lake TOBA: Results of Human Activities Hazard of: PIG FARMS Waste from the pig farms will increase E. Coli contain of the lake water

  16. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 4: FISH FARMING: CAGE SYSTEM/ “open net-cage fish farms” Managed by: Both Small and big industries Thousands of units!!!

  17. POLLUTION of Lake TOBA: Results of Human Activities HAZARDS Fish food contain harmful chemicals that dissolves in lake water Concentrated fish waste

  18. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 5: A pulp industry nearby (Pulp  for paper production)

  19. POLLUTION of Lake TOBA: Results of Human Activities CAUSE 5: Pulp industry  deforestation of forests around the lake EFFECT: water level of the lake-water changes  ecosystem is disturbed

  20. What can local students do?

  21. What can local students do? # READ FOR MORE INFORMATION  CRITICAL # WRITE (A BLOG) # DO POSITIVE ACTIVITIES AROUND THE SITES OF THE LAKE  FOR MORE AWARENESS AND CARE

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