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8 Cards in this Set
- Front
- Back
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DO |
Is the amount of gaseous oxygen (O₂) present in the water in its dissolved state. |
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Oxygen in the air |
Mostly the dissolved oxygen in water comes from |
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photosynthesis, aquatic plants |
Also, it comes from the____ process done by ,______ |
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Factors affecting DO |
Temperature Salinity Pressure |
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Warmer water |
Warmer water cannot dissolve as much oxygen as colder water. |
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salinity |
As the salinity of water increases, its ability to dissolve oxygen decreases pressure. |
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increase |
DO will _,___ as pressure increases. |
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Significance Of DO |
-Water Quality -Survival of all aquatic organisms -Water indicators -As a dissoved oxygen levels in water drop below 5.0 mg/L -Total dissolved gas concentration in water should not exceed 110 percent. -Community water supply |
