新华社“雪龙”号８月２４日电（记者璩静）参与中国第五次北极科考的科学家在接受新华社记者采访时说，最新研究发现，一些新型溴代阻燃剂、全氟烷基化合物等有毒有害物质首次在北极高纬度海区出现。

    The xinhua news agency“photo”On August 24, no.（Reporter Qu static）In China's fifth arctic expedition scientists accept xinhua news agency reporters in an interview，A new study has found that，Some new bromination flame retardant、Perfluorinated alkyl compounds toxic or harmful substances, such as high for the first time in the arctic sea appeared。

    参与本次科考、来自厦门大学海洋与地球学院的蔡明刚博士说，这些新型持久性有害污染物对生物和人类多具有致畸、致癌以及内分泌干扰等特征，它们对北极地区环境和生态系统的影响应当引起更多关注。

    Participate in the examination、From xiamen university ocean and earth CaiMingGang college, "said dr，These new persistent pollutants of biological and more human with teratogenic、Carcinogenic and endocrine interference characteristics，Them to the arctic environment and ecological system influence shall cause more attention。

    据介绍，自中国开展北极科考以来，尤其是２００８年和２０１０年开展第三、第四次北极科考后，科学家在海洋大气化学等多个学科领域获得大量重要样品，通过后续样品处理和数据分析得出初步结论，北极地区污染程度总体呈下降趋势。

    According to introducing，Since China carried out since the arctic expedition，Especially the 2008's and 2010 develop the third、After the fourth arctic expedition，Scientists in Marine atmospheric chemistry, and other disciplines get a great deal of important sample，Through subsequent sample processing and data analysis of the preliminary conclusion，The arctic pollution level declined overall。

    蔡明刚说：“从已有研究结果看，以有机氯农药为例，自上世纪８０年代这类持久性有机污染物被禁止生产及使用以来，这类物质在北极海水中的浓度呈现不断下降趋势。”

    CaiMingGang said：“From the existing research results to see，With organochlorine pesticides, for example，Since the 1980 s this kind of persistent organic pollutants are prohibited from production and use since，This kind of material in the arctic in seawater concentration has continued to decline。”

    一直以来，北极地区就是全球气候变化响应最敏感的区域，也是北半球人类活动产生持久性有机污染物的主要“埋葬地”。专家认为，随着北极环境快速变化、海冰融化加剧以及人类活动增加，北极海域可能逐渐从一些传统污染物的“汇集地”变为“源头”。

    Has been，The arctic is global climate change response the most sensitive area，The northern hemisphere is from human activities of the main persistent organic pollutants“burial”。Experts say，As the arctic environment rapid change、Sea ice melts aggravate and human activities increase，The arctic waters may gradually from some traditional pollutants“Collection to”into“source”。

    蔡明刚进一步解释说，中国科学家对大气和海水中传统持久性污染物进行了实际观测和模型预测，最新结果显示原有平衡可能已被打破，包括多种有机氯农药在内的污染物通过海气交换重新释放进入大气，进入食物链从而传递进入北极高等生物甚至人体中。

    CaiMingGang further explained，Chinese scientists in the atmosphere and seawater traditional persistent pollutant on the actual observation and model prediction，The latest results show that original balance may have been broken，Include a variety of organochlorine pesticide, the pollutants through the air-sea exchange to release into the atmosphere，Enter the food chain to transfer into the arctic higher biological even in the human body。

    “北极地区海洋环境问题研究不是区域问题，世界各国在北极海洋环境研究与保护方面的合作应进一步加强，”蔡明刚说。

    “The arctic ocean environment problem research is not regional issues，All countries in the world in the arctic ocean environment research and protection should be further strengthen cooperation，”CaiMingGang said。

    ８月２日，中国第五次北极科考队穿越北极东北航道首次到达北冰洋大西洋扇区进行海洋调查。这次调查历时１０天，共完成１７个站位的多学科综合科考任务，在中国极地科考史上具里程碑意义。蔡明刚说，这些定点站位和走航观测将为中国首次开展大西洋、太平洋洋流和大气输送对污染物传输机制影响的研究提供重要技术支撑。

    On August 2,，China's fifth arctic expedition through the arctic northeast passage first arrive in the arctic ocean to the Atlantic sector ocean survey。The investigation after 10 days，Complete a total of 17 stance multidisciplinary comprehensive examination task，In the history of China's polar expedition milestone。CaiMingGang said，The fixed point position and go to observation will be the first time for China to carry out the Atlantic ocean、The Pacific Ocean current and atmospheric transport of pollutants transmission mechanism influence research to provide important technical support。