a direct location from which pollution is produced that you can point to

a diffused area that produces pollution; cant point to one source

Sewage: secondary treatment

digestion of sludge by bacteria, requires O2, captures methane as energy

Sewage: tertiary treatment

chlorine, ozone, or UV light kills bacteria, water exits to ecosystem

Oceanic dead zones from nutrient pollution

Fertilizers runoff into bodies of water creating eutrophication leading to dead zones

“oxygen sag curve”

In bodies of water with sewage, decomposers come in because they like the nutrients in sewage & perform cell respiration, taking all oxygen from water making it hypoxic. Only anaerobic organisms survive.

Sources of heavy metals on groundwater/drinking water

Lead found in pipes and other materials of older construction, arsenic occurs naturally through mining and industry, mercury occurs through burning coal

Impacts of heavy metals on groundwater/drinking water

Leads to damage to the brain and nervous system, slowed growth and development, learning and behavior problems, and hearing and speech problems

Causes and impact of increased sediment in waterways

Cause water to become darker leading to less photosynthesis, increased temperatures and can clog gills of aquatic animals

What is Eutrophication? How does it lead to die-offs?

A phenomenon in which a body of water becomes rich in nutrients; causes rapid growth of algae which eventually dies, causing the microbes to increase the BOD

highly productive, with lots of plants/algae and less clear water

nutrient-poor, very few plants and very clear water

What is thermal pollution? Sources?

Non Chemical water pollutants that occur when human activities cause a substantial change in the temperature of the water (factories taking in cold water and releasing hot water back)

Thermal pollution impacts on dissolved oxygen

Warmer water has less dissolved oxygen

Sounds emitted by ships in submarines

Impact of noise pollution on ecosystem

Interferes with animal communication

Issued water quality standards that defined acceptable limits of various pollutants in U.S. waterways

Safe Drinking Water Act

Establishes maximum contaminant levels for 77 different elements or substances in both surface water and groundwater

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APES Ch 14 - Water

Question	Answer
Point source	a direct location from which pollution is produced that you can point to
nonpoint source	a diffused area that produces pollution; cant point to one source
Sewage: primary treatment	remove solids
Sewage: secondary treatment	digestion of sludge by bacteria, requires O2, captures methane as energy
Sewage: tertiary treatment	chlorine, ozone, or UV light kills bacteria, water exits to ecosystem
Oceanic dead zones from nutrient pollution	Fertilizers runoff into bodies of water creating eutrophication leading to dead zones
“oxygen sag curve”	In bodies of water with sewage, decomposers come in because they like the nutrients in sewage & perform cell respiration, taking all oxygen from water making it hypoxic. Only anaerobic organisms survive.
Sources of heavy metals on groundwater/drinking water	Lead found in pipes and other materials of older construction, arsenic occurs naturally through mining and industry, mercury occurs through burning coal
Impacts of heavy metals on groundwater/drinking water	Leads to damage to the brain and nervous system, slowed growth and development, learning and behavior problems, and hearing and speech problems
Causes and impact of increased sediment in waterways	Cause water to become darker leading to less photosynthesis, increased temperatures and can clog gills of aquatic animals
What is Eutrophication? How does it lead to die-offs?	A phenomenon in which a body of water becomes rich in nutrients; causes rapid growth of algae which eventually dies, causing the microbes to increase the BOD
“Hypoxic”- What does this mean for a body of water	Low concentration of oxygen
Eutrophic	highly productive, with lots of plants/algae and less clear water
Oligotrophic	nutrient-poor, very few plants and very clear water
What is thermal pollution? Sources?	Non Chemical water pollutants that occur when human activities cause a substantial change in the temperature of the water (factories taking in cold water and releasing hot water back)
Thermal pollution impacts on dissolved oxygen	Warmer water has less dissolved oxygen
Noise pollution	Sounds emitted by ships in submarines
Impact of noise pollution on ecosystem	Interferes with animal communication
Clean Water Act	Issued water quality standards that defined acceptable limits of various pollutants in U.S. waterways
Safe Drinking Water Act	Establishes maximum contaminant levels for 77 different elements or substances in both surface water and groundwater

Created by: maddiehubbs

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