Complex sentence: TBT compounds are considered as toxic chemicals which have negative effects on human and environment.Tributyltin compounds are moderately to highly persistent.One coomon example is, leaching of TBT from marine paints into the aquatic environment cause irreversible damage to the aquatic life.
Split into simpler sentences: TBT compounds are considered as toxic chemicals which have negative effects on human and environment.Tributyltin compounds are moderately to highly persistent. Leaching from marine paints into the aquatic environment cause irreversible damage to the aquatic life.