Question

how can level of water pollution be measured ?

Answer 1

Water pollution is defined as the presence of pollutants like organic matter, toxic substance, microorganism etc in the water bodies which results in the contamination of water. The level of water pollution is measured by checking the levels of the various pollutants and there are various instruments used. Some of the methods are:

• Secchi disks (to measure water clarity)
• Probes (to detect organic matter and toxic metals)
• Filters (to detect microorganisms)
• Nets
• Gauges and meters.