The pollution and harm caused by dioxine had been paid attention in all over the world.And the bleaching process in pulp and paper making industry is also a source of dioxine.

• 摘要二恶英对环境的污染和对人类的危害已引起全世界的关注，而制浆造纸行业的漂白工艺也是产生二恶英的主要来源之一。