**3. Sources of phenolic compounds in water**

The existence of phenolic compounds in water can be attributed to natural and anthropogenic activities. Natural sources of phenolic compounds in water pollution include decomposition of dead plants and animals (organic matter) in the water. They are also synthesised by micro‐ organisms and plants in the aquatic environment. Industrial, domestic, agricultural and municipal activities constitute the anthropogenic sources of water pollution with phenolic compounds. This section provides details on various sources of introduction of phenolic com‐ pounds in water bodies.
