text: Water Pollution in Chesapeake Bay | Smore Newsletters
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  Water Pollution in Chesapeake Bay
  By:Elaine Cheng P7 1/6/16
  Water Pollution in the Bay
  Water pollution comes from everyday people doing activities. We may contribute to water pollution without even knowing it. I chose this topic to tell you of what happens when water pollution comes to the bay. Helping the bay can provides a clean, healthy, and safe place where marine species can thrive. How can I create a presentation that can inform others about the cause and effects of water pollution in the bay?
  Pollution in the bay is caused by excess nutrients, sediment input, agricultural runoff, and air pollution. Agriculture is considered one of the largest contributors to nutrient and sediment pollution, accounting to 42% nitrogen and 58% phosphorous. Yearly, about 331 million pounds of nitrogen and 20 million pounds of phosphorus enter the bay.
  Effects of Pollution for the Bay
  Because of it, the Bay is becoming over fertilized, making it 3/4 eutrophic and fueling algae blooms. Too much nutrients can lead to a threat of "Pfiesteria Piscicida." A microscopic organism, which can affect people to develop severe difficulties in learning and concentrating.
  When too many nutrients enter the bay, what happens are algae blooms. It is when there is a rapid increase of algae in a water system. That can lead to dead zones, which is when the amount of oxygen in the water drops below 2 milligrams per liter, a level too low to support life for most marine species. Algae blooms also blocks sunlight from reaching underwater plants.