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What is the primary concern in drinking water supplies in terms of microbiological quality?
Which of the following is an example of Fishery Water Class I?
What is the primary purpose of establishing coral reef parks and reserves?
What is potable water?
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What is the classification of water bodies that are regularly used by the public for bathing, swimming, skin diving, etc.?
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What is the primary indicator of microbiological quality in drinking water?
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What is the primary purpose of establishing tourist zones and national marine parks and reserves?
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What is the classification of water bodies that are used for boating, etc.?
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What is the primary purpose of microbiological parameters in drinking water quality assessment?
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What is the classification of water bodies that are used for commercial and sustenance fishing?
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Study Notes
Physical Properties of Water
- Taste and odor in water can be caused by foreign matter, algae, or dissolved gases
- The most desirable drinking water is consistently cool, between 10-15°C, with minimal temperature fluctuations
Temperature
- Temperature is a significant physical factor in natural water systems like lakes and rivers
- Temperature affects water quality and palatability
Color
- Pure water is colorless; colored water may indicate pollution or the presence of organic substances, inorganic metals, or algae
- The maximum acceptable level for the color of drinking water is 15 TCU (True color unit)
Turbidity
- Pure water is clear and does not absorb light
- Turbidity can indicate water pollution and may harbor microbiological contaminants
- Turbidity is caused by suspended material like clay, silt, organic materials, plankton, or other particulate material
Solids
- Total solids include total suspended solids and total dissolved solids
- Suspended solids can settle out of the water column and may harbor microbiological contaminants
- The coliform group of bacteria includes E. coli, which is an indicator organism for fecal contamination
- Water intended for human consumption should contain no indicator organisms
Microbiological Quality
- Microbiological agents can modify the physical and chemical characteristics of water
- Drinking water supplies should be free from contamination by human and animal excreta to prevent waterborne diseases
- Microbiological parameters include bacteria, viruses, and pathogenic protozoa
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Description
This quiz covers the factors affecting water quality, including foreign matter, algae, and temperature. Learn how these factors impact the taste, odor, and overall quality of water.
