untreated petrochemical wastewaters are harmful to the environment since they typically contain many toxic and persistent organic pollutants in high concentrations.
石油化工废水组成复杂、浓度高、毒性强和难降解,对环境危害大。
the article deals with the advances of plant gene engineering technology in the field of persistent organic pollutants monitoring and purifying.
介绍了植物基因工程技术在监测和凈化难分解性有机污染物质方面的研究进展。
effect of aging on bioavailability and extractability of persistent organic pollutants has recently been paid much attention in environmental studies.
老化是指有机污染物进入土壤后,随着时间的增加,其生物有效性、毒性和可浸提性会逐渐下降的现象。
in this paper, persistent organic pollutants (pops) in terms of the definition, characteristics and sources are briefly described.
介绍了持久性有机污染物的定义、特性和来源,研究了它们的全球归趋并探讨了机理。
there are small amount of persistent organic pollutants existed in water systems, and this does great harm to human beings and biology. it is necessary to remove these materials immediately.
beijing, july 3, 2006 – china has taken rapid action to eliminate key persistent organic pollutants (pops) targeted for phaseout worldwide due to their impacts on human health and environment.