Water Pollution

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Thomas Jefferson High School Student Water
Action Team
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Diseases Caused by Polluted Water
DONT DRINK THE WATER!!

• By
• Gloria Rebollar

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Water Borne Diseases in Texas

• By
• Gloria Rebollar

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Water QualityWater Pollution Resources

• Two general categories for water pollution
• Point Source
• Non-point Source.

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Water Pollution Sources

• Point Source Specific location where pollutants
  are discharged.
• Non-point Source Pollutants, which do not have a
  single point of origin or specific outfall.

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Types of Toxicity

• Acute Toxicity is when a substance causes
  immediate danger or death.
• Chronic Toxicity Long-term effect of sub lethal
  levels of substance which alters growth,
  reproduction of development.

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Organisms Used as Indicators of Pollution.

• Aquatic organisms are put into two categories
• Tolerant- Tolerance to Pollution and are used as
  indicator of polluted conditions in streams and
  rivers.
• Intolerant- Will not tolerate polluted water
  conditions and are used to indicate a clean
  stream or river.

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Polluted Stream
When a lot of tolerant and intermediate species
are present then that demonstrates bad water
quality.
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Healthy Stream
When a lot of intolerant species are present in a
stream or river that indicates that the water is
clean.
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Historic Causes of Water Contamination

• Surface and ground water contamination through
  human and animal waste
• Urban and Agricultural runoff, leaking
  underground, storage tanks and septic tanks.
• Industrial contamination with chemical and metals

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Drinking Water Quality Today

• 97 of Texas population is served by 6,697 public
  water systems. (including community and
  non-community)
• In the year 2000 Texas was ranked 4th place in
  water quality by The National Rural Water
  Association
• Texas is considered as superior by the TNRCC

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Health Effects

• 1997 and 1999 there were three waterborne
  diseases diagnosed in Texas
• July 1997 Texas had an outbreak of
  Cryptosporidium
• 1,400 residents were contaminated by polluted
  water

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Different Types Of Bacteria
Spirilla Cocci
Streptococcus Bacilli
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Pathogenic Bacteria in Drinking Water
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Polluted Water Can Cause You To Become Ill From

• Measles
• Yellow Fever
• Dengue Fever
• Cholera
• Waterborne Disease
• Typhoid Fever
• Shigellosis
• Tuberculosis
• Lyptospirosis
• Urinary Infections

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Water Contamination by Contact
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Our History

• Cholera epidemics in San Antonio in the 1800s
• 1869 Sister Madeline Cholett and St. Pierre
  Cinquin opened a hospital called the Santa Rosa
  Hospital due to a Cholera epidemic

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Cholera

• Faintness feeling
• Stomach Flutters
• Prodigious attack of diarrhea
• Diarrhea becomes odorless white fluids after
  two hours
• Dehydration
• Spasms
• Skin begins to hang

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Causes of Cholera
Bacteria Vibrio Chlorae fed by

• Sewage Discharges
• Fertilizer Run-off

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Yellow Fever

• Black Vomit from the blood of gastric
  hemorrhages.
• Backache
• Headache
• Sore Limbs
• After 3 days Shaking and Fever
• Nose bleed and gums
• Delirious
• Survivors are immune for life

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Typhoid Fever
Salmonella Typhi Bacteria
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WE TODAY CAN PREVENT WATER BORNE DESEASES BY
FOLLOWING STRICT WATER TREATMENT PROTICALS
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Water PurificationTreatment Plants
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If all the nations in the world would process
water by using strict water quality standards,
water borne diseases would no longer plague
mankind but that day is yet to come.
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Thomas Jefferson High School

• By
• Gloria Rebollar
• SWAT Sponsor Mrs. A. Aguirre
• May 10, 2003