Q1) State the two methods to test the contamination of water bodies?
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Please find below the solution to the asked query
Two methods to test the contamination in a water body:
1. BOD test: Water contamination is monitored in terms of BOD (biological oxygen demand). BOD is the amount of oxygen required by micro-organisms to decompose organic matter present in water. A water body with BOD of more than 20 mg oxygen per litre of water is considered as contaminated.
2. Turbidity test: This test measures the clarity of water which is necessary for sunlight to penetrate into the depth of water body. If the water is not clear, then the water body is declared as contaminated. It occurs due to erosion, algal growth etc.
Other tests include checking the pH, temperature, amount of dissolved solids etc.
Hope this information will clear your doubts about the topic.
Please find below the solution to the asked query
Two methods to test the contamination in a water body:
1. BOD test: Water contamination is monitored in terms of BOD (biological oxygen demand). BOD is the amount of oxygen required by micro-organisms to decompose organic matter present in water. A water body with BOD of more than 20 mg oxygen per litre of water is considered as contaminated.
2. Turbidity test: This test measures the clarity of water which is necessary for sunlight to penetrate into the depth of water body. If the water is not clear, then the water body is declared as contaminated. It occurs due to erosion, algal growth etc.
Other tests include checking the pH, temperature, amount of dissolved solids etc.
Hope this information will clear your doubts about the topic.
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