本报综合消息 据中国青年报报道，中国科学院近日公布了该院“大气灰霾追因与控制”专项组的最新研究结果，研究认为，最近的强雾霾事件，是异常天气形势造成中东部大气稳定、人为污染排放、浮尘和丰富水汽共同作用的结果，是一次自然因素和人为因素共同作用的事件。

Our comprehensive news according to China youth daily reported,The Chinese academy of sciences institute recently released"Atmospheric gray haze chase for and control"The special group of the latest research results,Studies suggest that,The recent strong fog haze events,Is caused by abnormal weather situation designates the atmospheric stability/Man-made pollution emissions/Dust and abundant water vapor the result of joint action,Is a natural factors and human factors of events.

　　污染物遇水汽发生灰霾事件

Pollutants in water vapor gray haze events happened

　　研究认为，人类污染物排放是造成雾霾天气的内因，可以说是“主谋”。专项组成员、中科院遥感与数字地球研究所研究员陈良富说，空气污染物中的可溶性成分遇到浮尘矿物质凝结核后会迅速包裹，形成混合颗粒，再遇到较大的空气相对湿度后，就会很快发生吸湿增长，颗粒的粒径增长2倍至3倍，消光系数增加8倍至9倍，也就是能见度下降为原来的八分之一至九分之一。通俗地讲，空气中原本存在的较小颗粒的污染物遭遇水汽后变成人们肉眼可见的大颗粒物，随即发生灰霾事件。

Studies suggest that,Human pollutants caused by fog haze weather is the internal cause,Can be said to be"counselor".Special group/Chinese academy of sciences institute of remote sensing and digital earth ChenLiangFu researchers said,Air pollutants of soluble components meet dust minerals condensation nuclei will quickly package,Form hybrid particle,Meet again after large air relative humidity,Will soon occur hygroscopic growth,Grain size growth 2 times to 3 times,The extinction coefficient increases eight times to 9 times,Visibility is reduced to the original one 8 to one 9.Generally speaking,The air there was smaller particles with water vapor pollutants after people become visible big particles,Grey haze events happen immediately.

　　中国科学院分布在京津冀区域的15个PM2.5监测站的监测数据统计显示，1月份京津冀5次强霾污染分别发生在1月6日至8日、9日至15日、17日至19日、22日至23日、25日至31日。这5次都少不了陈良富所说的水汽做“帮凶”。

The distribution of the Chinese academy of sciences in beijing-tianjin-hebei region 15 PM2.5 monitoring station monitoring data statistics,Beijing-tianjin-hebei January 5 times strong haze pollution were happened in January 6 to 8/9 to 15 days/17 to 19,/22 to 23,/25 to 31,.This 5 times are not the ChenLiangFu said do water vapor"accomplice".

　　霾中检测出危险有机化合物

In the haze detected dangerous organic compounds

　　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，本次席卷中国中东部地区的强霾污染物化学组成，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。

Special group"Atmospheric gray haze traceability"Project principal/The atmosphere of the Chinese academy of sciences WuLiSuo WangYueSi researchers said,This spread across the Midwest strong haze pollutants 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.

　　尤其值得一提的是洛杉矶光化学烟雾事件，在该污染事件中，共有800余人丧生。美国政府在后来的调查中称，石油挥发物（碳氢化合物）和二氧化氮，在强烈的阳光紫外线照射下，会产生一种有刺激性的有机化合物，这个过程被称为光化学反应，其产物就是含剧毒的光化学烟雾。

What be worth to be carried particularly is Los Angeles photochemical smog event,In the pollution incident,There are more than 800 people were killed.The United States government later in the survey said,Oil volatile(hydrocarbon)And nitrogen dioxide,In the strong sunlight uv rays,Can produce a kind of stimulating organic compounds,This process is called the photochemical reaction,The product is toxic of photochemical smog.

　　在京津冀雾霾天气的专项研究中，专项组检出了大量含氮有机颗粒物，这在王跃思看来是“最危险的信号”，因为这就是“洛杉矶上世纪光化学烟雾的主要成分之一”。

In beijing-tianjin-hebei fog haze weather special study,The special group of detection of nitrogenous organic particles,This seems to be in WangYueSi"The most dangerous signal",Because this is the"Los Angeles last century is one of the major components of photochemical smog".

　　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；油烟型有机物，主要来自局地烹饪源排放；氮富集有机物，一种化学产物；还有烃类有机颗粒物，主要来自于汽车尾气和燃煤。其中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 was identified four kind of organic component:Oxidation type organic particles,Mainly comes from the surrounding Beijing;Lampblack type organic matter,Mainly from local cooking source emission;Nitrogen organic matter enrichment,A kind of chemical product;And hydrocarbon organic particles,Mainly comes from the car tail gas and coal.The 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%.

　　建议重点控制工业和燃煤

Suggest key control industry and coal

　　专项组将这些因素归结为“人为粗放式排放和自然生态被破坏的直接后果”。在北京地区，机动车为城市PM2.5的最大来源，约为1/4；其次为燃煤和外来输送，各占1/5。对于整个京津冀区域，专项组认为，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。

Special group will boil down to these factors"Human extensive emissions and natural ecological destruction of direct consequences".In Beijing area,Motor vehicle for city PM2.5 the biggest source,About a quarter;Followed by coal and foreign transport,The 1/5.To the beijing-tianjin-hebei region,Special group think,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.

　　用王跃思的话说，“控制灰霾还是需要从控制污染物排放着手。”

With WangYueSi words,"Control gray haze still need to control the pollutant emission."