ENVIRSC 2EI3 Lecture Notes - Lecture 4: Nonpoint Source Pollution, Great Lakes, Microcystis
9 Nov 2016
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Document Summary
Earth science 2ei3 - environmental issues ( envi textbook ) bd. Eruption and harmful algal blooms in lake erie. Eutrophication: what is it and its causes. The impact of human activity on the flow of nutrients. Eutrophication in lake erie: history, sources, algae involved, issues. Natural process of nutrient enrichment of water bodies that: leads to greater. Little oxygen in the bottom waters, because they use the last oxygen to break down organic material. Aquatic dead zone - receiving too much phosphorous. The bottom waters have no oxygen - usually form fertilizers in coastal waters. Hypoxia is when there is no/little oxygen for the living life to sustain life. Crops from farmers use nutrients and runoff causes pollution to accumulate and disrupt aquatic life. Eutrophication and lake erie - most sensitive lake. 20% of the available freshwater in the world . Map shows the depth of the lake erie. Cities surrounding the lake is impacting the quality of the water.
