Water Conservation & Water Quality 11.4. Water Quality How do we know if the water is good? – Dissolved oxygen – Pathogens – Temperature – pH – Turbidity.

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Presentation transcript:

Water Conservation & Water Quality 11.4

Water Quality How do we know if the water is good? – Dissolved oxygen – Pathogens – Temperature – pH – Turbidity – Suspended sediment – nitrates –

Where does pollution come from? There are two main categories of water pollution: – Point source – Nonpoint-source

Point source pollution Comes from one specific source: – Leaking sewer pipe – Leaking tanker – Outfall pipe from a factory This type of pollution can be identified, monitored and controlled.

Point source pollution &qs=IM&sk=IM1&pq=bp+oil+spill+&sp=2&sc=8- 13&form=QBIR#x0y37

Nonpoint-source pollution Comes from many vague sources: – lawns – fields – roadways This type of pollution is difficult to trace, difficult to monitor and difficult to control. Education is the best remedy!

t+source+pollution+examples&view=detail&id=A 087CA45F3EE0D8EB31D011B D96A1DDD 0&first=0&FORM=IDFRIR earch?q=litter+images&view=de tail&id=06A70A7E2B26B95CA01 BF41C312F BADD2&first =0&FORM=IDFRIR

Cultural eutrophication From Millers Living in the Environment

Wastewater treatment From Millers Living in the Environment

Primary treatment Large screen to catch solids such as plastics, bottle caps, paper. Large tank where small particles can sink & get filtered out. Oil floats to surface & is skimmed off.

Secondary treatment Water flows to aeration tank where oxygen & bacteria are mixed. Bacteria feeds on the waste. Water flows to another tank. Water is disinfected with chlorine, UV or ozone. Water is released to stream or river.

NC Water Use ricultural_Water_Strategic_Plan_Exec_Summa ry.pdf ricultural_Water_Strategic_Plan_Exec_Summa ry.pdf

NC Law for water conservation tions/hb1215/HB1215_Sec5_Report.pdf tions/hb1215/HB1215_Sec5_Report.pdf iew=detail&id=924A5F6C23BE13E3FA7C4DAEC B5121&firs t=0

What can you do to reduce your water consumption? With your team, generate a list of ways that you can reduce your water consumption. Every drop counts! Here are some ideas…lets compare our lists: conserve/index.php conserve/index.php

Homework Read pages

Output Select 3 ways to reduce your water use. Write them in your notebook. Share these ideas with your family tonight. Make a mental note about how they respond to your water conservation lesson.