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Environmental Chemistry

Question

Define chemical oxygen demand (COD).

Solution

The amount of oxygen (in mgL^–1) consumed for oxidising all organic and oxidizable inorganic materials in a sample of water is called COD. COD is always higher than BOD.

Some More Questions From Environmental Chemistry Chapter

What is the temperature range of the atmosphere?

In what regions of the atmosphere, the temperature increases with altitude and in which regions it decreases?

What is the size range of particulates?

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Environmental Chemistry

Define chemical oxygen demand (COD).

Some More Questions From Environmental Chemistry Chapter

What is the temperature range of the atmosphere?

In what regions of the atmosphere, the temperature increases with altitude and in which regions it decreases?

What is the size range of particulates?

How particulates help in the cloud formation?

Name three gases which are major air pollutants.

What are primary and secondary pollutants of the air?

Which zone is called ionosphere?

Give one harmful effect of classical smog.

What is PAN?

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