细粒子

西安大气细粒子（PM（2.5））质量浓度变化特征及其影响因素

Characterization of Ambient Fine Particles ( PM_ ( 2.5 )) Concentration and Its Influential Factors in Xi'an

而污染元素Zn、Pb主要分布在细粒子上，污染元素主要是本地源。

The contaminated elements such as Zn and Pb mainly distribute in fine particles . The contaminated elements mainly come from local source .

北京大气细粒子PM（2.5）的化学组成

Chemical characteristics of PM_ ( 2.5 ) species in Beijing ambient air

夏季持续高温天气对北京市大气细粒子（PM（2.5））的影响

Effects on Fine Particles by the Continued High Temperature Weather in Beijing

CFD在燃煤细粒子凝聚过程中的应用

CFD application in the course of submicron particles coagulation during coal combustion

南昌市大气细粒子PM（2.5）中多环芳烃的污染特征及源解析

Characteristic of PAHs Pollution and their Sources Apportionment in Fine Particulate Matter ( PM_ ( 2.5 )) of NanChang City

两地细粒子的AOD值要比粗粒子大。

The fine mode AOD in the two districts was higher than that of coarse mode .

对细粒子来说（如小于2μm的PTFE）能在对磨件表面形成转移膜，降低摩擦系数，其磨损率略有提高。

Fine particles ( as PTFE particles < 2 μ m ) came off constantly and formed a transfer film on the surface of the friction couple .

从颗粒粒度分布来看，煤粉添加CaO减少了一次颗粒物中细粒子的相对量。

As seen from the distribution of particle diameters , the addition of CaO to the pulverized coal can reduce the relative amount of fine particles among the primary particles .

收集的细粒子尺寸分布和形貌已经在不同的操作参数下进行了测量，由此得到细粒子的分布特征并探讨燃烧过程中温度对细粒子生成的影响，同时利用SEM分析细粒子生成演化的过程。

The size distributions and morphology of submicrometer particles were measured at different operating conditions . Also we discussed the influence of temperature on the formation of submicrometer particles and analyzed the development of submicrometer particles by using SEM .

气溶胶细粒子pm2.5的污染是区域性的。在城区北京舞蹈学院单点监测的pm2.5，一定程度上可反应出北京市区pm2。

For the fine particle pollution , the distribution of PM2.5 observed at the spot BDC may be regional , and to a certain extent , cloud be the a representative of the city beijing .

土壤尘的季节平均浓度从夏季逐步上升，至次年春季达到最高（211μg·m-3），表明春季频繁发生的沙尘天气对土壤尘细粒子有重要贡献。

Soil dust concentration increased from a low level in summer to the peak value ( 21 1 μ g · m - 3 ) in spring , suggesting that frequent dust events made a significant contribution to fine soil dust .

冬季IPM中约有50%以上来自PM2.5的贡献，说明冬季燃煤采暖是细粒子的重要排放源之一，是细粒子污染最严重的季节；

PM_ ( 2.5 ) particles make > 50 % contribution to wintertime IPM , indicating that coal burning is the major emission source for fine particles that are responsible for the most severe contamination of the season .

观测期间，可吸入颗粒物中主要成分是细粒子，PM25数量平均占PM10总数量的99%以上。

The main constituents in inhalation particulates are fine particles , PM_ 2.5 average quantity accounts for over 99 % of PM_ 10 during observation period .

表层土壤中的磁性矿物倾向于在细粒子特别是粘土矿物中富集，因此，磁学参数χfd、χARM/χ以及χARM/SIRM可以作为粘土矿物粒径的代用指标。

The magnetic minerals are inclined to be enriched in the fine grain ( especially in clay minerals ), indicating that the magnetic parameters (χ fd ?χ ARM / χ, χ ARM / SIRM ) could be used proxies for grain sizes of clay minerals in topsoil .

工业区的污染排放很大程度上是观测地细粒子的主要贡献者，尤其是PM2.5的气溶胶颗粒。

Among the meteorological elements , the impact of the wind is the most significant . The pollution emissions in the industry are the main contributor for the micro particles in the observation site , especially for the aerosols particles of PM2.5 .

随着复合分散体系用量的增加，共聚树脂的平均粒径减小，而AN-St共聚物细粒子增多。

The average size of copolymer particles decreases and the content of fine AN-St copolymer particles increases with the increasing mass fraction of the composite suspending agents .

对于大气柱气溶胶的光学特征，非污染天，AOD变化较小，峰值出现在15：00，但大气中细粒子含量相对较高；污染天，AOD波动很大，没有明显的日变化，颗粒物以细粒子为主。

AOD changed slightly with the peak at15:00 , and there were relatively high content of fine particles in the atmosphere during the non-polluted days , while during the polluted days , AOD fluctuated wildly with no significant diurnal variation , with the main component are fine particles .

1991年、2002年和2003年PM11/TSP的值为90%左右，PM2.1/PM11分别为46.52%，69.33%和72.29%，说明气溶胶以小粒子为主，小粒子又以细粒子为主。

Values of PM11 / TSP were nearly 90 % and those of PM2.1/PM11 were 46.52 % , 69.33 % , and 72.29 % , which suggest that aerosols consists mainly of small particles , especially fine particles .

燃煤细粒子富集砷的实验研究

Experimental study on As enriched in micro particle during coal combustion

天气系统对气溶胶细粒子的输送有明显的影响。

The synoptic system affected the transport of fine particles significantly .

75t/h细粒子循环流化床锅炉的设计思想

Conceptual Design of 75 t / h Fine Particle Circulating Fluidized-bed Boiler

北京市大气细粒子的质量浓度特征研究

The research on the mass concentration characteristics of fine particles in Beijing

细粒子中含有多种化学元素与化合物。

There are multiple of chemical elements and compounds in fine particles .

细粒子污染形成灰霾天气导致广州地区能见度下降

Study on the visibility reduction caused by atmospheric haze in Guangzhou area

燃放烟花爆竹对北京城区气溶胶细粒子的影响

Effect of firecracker setting-off on the fine particle pollution in Beijing downtown areas

大气细粒子的快速捕集及化学成分在线分析方法研究

Rapid collection of fine particles in the atmosphere and on-line measurement chemical composition

细粒子流化床料层内的电阻分布特性

Experimental Study on the Resistance Distribution Property of Small Particales in Fluidized Bed

工业燃煤链条炉细粒子排放特征研究

Emission Characteristics of Fine Particles from Grate Firing Boilers

城市大气气溶胶细粒子的化学成分及其来源

Chemical Composition and Its Source of Fine Particles in Atmospheric Aerosol of Urban Areas