中新社北京2月17日电 受17日清晨大雾影响，首都机场及周边地区能见度一度低至5至10米，部分航班不能正常起降，部分高速公路采取临时封闭措施。北京市气象台今晨发布消息，今天中午到傍晚将有四、五级北风，雾霾状况有望缓解。

China news agency Beijing on February 17, 17 by the morning fog effect,Capital airport and the surrounding areas of low visibility once to five to ten meters,Part of the flight can't normal landing,Part of the highway to take measures to temporarily closed.The Beijing meteorological station this morning said in a news release,Today noon to the evening will have four/Fresh north wind,Fog haze situation is expected to ease.

　　媒体报道，中国科学院近日公布最新研究结果认为，今冬出现在中国东中部地区的大范围强雾霾，是异常天气形势造成大气稳定、人为污染排放、浮尘和丰富水汽共同作用的结果，而人为粗放式排放和自然生态被破坏是直接原因。

Media reports,The Chinese academy of sciences has released the latest research suggests,Winter in eastern China appeared in large areas of the strong fog haze,Is abnormal weather situation caused by atmospheric stability/Man-made pollution emissions/Dust and abundant water vapor the result of joint action,And human extensive emissions and natural ecological destruction is the direct cause.

　　中科院专项组“大气灰霾溯源”项目负责人、中科院大气物理所研究员王跃思说，本次强霾污染物的化学组成，是英国伦敦1952年烟雾事件和上世纪40-50年代开始的美国洛杉矶光化学烟雾事件污染物的混合体，并叠加了中国特色的沙尘气溶胶。

The special group of the Chinese academy of sciences"Atmospheric gray haze traceability"Project principal/The atmosphere of the Chinese academy of sciences WuLiSuo WangYueSi researchers said,The strong haze pollutant chemical composition,Is the British London 1952 smoke events of the last century and the early s began to Los Angeles photochemical smog event a pollutant,And stack the Chinese characteristics of sand and dust aerosol.

　　经过源解析技术，这些包括含氮有机颗粒物在内的有机物，被识别出了4类有机组分：氧化型有机颗粒物，主要来自于北京周边地区；油烟型有机物，主要来自局地烹饪源排放；氮富集有机物，是一种化学产物；烃类有机颗粒物，主要来自于汽车尾气和燃煤。其中源于北京周边地区的氧化型有机颗粒物在整个污染过程所占比例最大，为44%，其余三个组分别占21%、17%和18%。

After the source analysis technology,These include nitrogen organic particles, organic matter,Be identified four kind of organic component:Oxidation type organic particles,Mainly comes from the surrounding areas of Beijing;Lampblack type organic matter,Mainly from local cooking source emission;Nitrogen organic matter enrichment,Is a kind of chemical product;Hydrocarbon organic particles,Mainly comes from the car tail gas and coal.Which comes from Beijing surrounding areas oxidation type organic particulate pollution in the whole process of the largest proportion,44%,The rest of the three groups were 21%/17% and 18%.

　　中科院专项组认为，对于整个京津冀区域，应重点控制工业和燃煤过程，重点在于燃烧过程的脱硫、脱硝和除尘；同时要高度关注柴油车排放和油品质量。

Chinese academy of sciences that special group,To the beijing-tianjin-hebei region,Should focus on control industry and coal process,The key lies in the combustion process of desulfurization/Denitration and dust removal;At the same time to high attention diesel vehicle emissions and oil quality.

　　中国疾控中心初步研究发现：霾天气引起的健康影响主要以急性效应为主，主要表现为上呼吸道感染、哮喘、结膜炎、支气管炎、眼和喉部刺激、咳嗽、呼吸困难、鼻塞流鼻涕、皮疹、心血管系统紊乱等疾病的症状增强；呼吸系统疾病的发病和入院率增高。

The Chinese CDC preliminary study found:Haze weather cause health effects mainly acute effect is given priority to,Mainly for upper respiratory tract infection/asthma/conjunctivitis/bronchitis/Eyes and throat stimulation/cough/Difficulty breathing/Snuffle runny nose/rash/The cardiovascular system diseases such as disorder symptoms increase;Respiratory system disease incidence and admission rate increase.

　　专家提示，雾霾天气时尽量关闭门窗，减少外环境颗粒物进入室内。有条件的家庭可以使用空气净化器，减少室内颗粒物的污染。

Expert clew,Fog haze weather as far as possible when closed doors and Windows,Reduce the external environment particles into the interior.Conditional family can use air purifier,Reduce indoor particulate pollution.

　　中国疾病预防控制中心主任王宇指出，该中心下属环境所计划全面开展雾霾对人群健康影响的基础研究，并及时启动雾霾天气下的健康评估和预警，以疾控机构为核心力量，推进全国雾霾天气发生时的卫生应急机制建设。(完)

China, director of the center for disease control and prevention CDC) pointed out,The center subordinate environment plan to carry out comprehensive fog haze to people health effects of basic research,And timely start fog haze weather health assessment and early warning,To CDC for core strength,Promote the fog haze weather occurs health emergency mechanism construction.(finish)