LEC 8: EUTROPHI - what now? Flashcards
What are LNAPLs? (EL-NAP-ELs)
Light Non-Aqueous Phase Liquid (like oil, seeping into an aquafer)
What is “oil” when it seeps into an aquafer?
LNAPL
What’s an example of a substance that seeps into an aquafer and becomes an LNAPL?
Oils / vapors.
Why can overwatering result in salination of land?
Saltwater intrusions / taking over where groundwater leaves off
When you use too much ground water, what kind of shape does it make in the ground water?
Inverted cone.
What makes an inverted cone shape in ground water levels?
Groundwater usage / overwatering.
Using long hoses with holes in them to distribute water (prevents evaporation) – is known as …
microirrigation
What accounts for 10% of global water usage?
Industrial water usage.
3 examples of industrial water usage
- Chemical products 2. Paper and pulp 3. Petroleum & coal
Build up of sediments =
Siltation
Siltation =
Build up of sediments
IF the GOV doesn’t clear out the WHAT?!? – dams will break …
sediment
Sediment / siltation from what? kills coral reefs … ?
Deforestation
OLIGOTROPHIC
Clear water. Rocky and Sand.
EUTROPHIC
Oft shallow. Sediment floor. TOo much nutrients.
Opposite of Eutrophic is …
Oligotrophic
What kind of buffer can prevent over-abundance of nutrients in eutrophic condition?
Calcite minerals / or actually remove the vegetation.
Who did research on Nitrates & Phosphates in The Great Lakes?
Dr Schindler (same as the guy from that movie about the Holocaust)!
What crazy thing did Dr Schindler do to create an Oligotrophic zone in Great Lakes?
Divided the whole bloody lake.
Due to Dr Schindler’s study of the Great Lakes, what products did we cease using?
Detergents with phosphates.
What is “Experimental Lake Theory”?
Dr Schindler’s study of Great Lakes (important Canadian study)
An inorganic pollutant that we also use for “family planning”
birth control (“pharmaceuticals”)
Pesticides result in …
birth defects & reprod problems
Arsenic is what kind of pollutant …
Organic pollutant (minerals, like lead, mercury).
3 organic pollutants …
Lead, mercury, arsenic
What is more likely if you consume more from the highest trophic levels than the lower ones?
Health problems like cancer.
Name for the accumulation of pollutants in the body of creatures at the highest trophic levels …
Bioaccumulation.
Bioaccumulation VS biomagnification?
Bioaccumulation takes place in a single organism over the span of its life, resulting in a higher concentration in older individuals. Biomagnification takes place as chemicals transfer from lower trophic levels to higher trophic levels within a food web, resulting in a higher concentration in apex predators.
Type of rock that buffers a landscape from effects of acid rain …
limestone
What’s limestone to acid rain?
A buffer
Acid Rain usually has a high _______ level
Ph
How many billion lack safe drinking water?
1.4
How many lack proper sanitation?
2.9 billion
