Abstract: The anti-pollution paints mainly used today are Cu-,Hg-,As-,Sn-.containing ones.Ineyhave strong toxicity and release to the waterbody during their utilization,inducing the pollution of ambient aquatic environment,and harbours in particular.This problem must be paidedgreat attention by the parties concerned.

Key words: Mangrove species, Wood, Caloric value, Ash content