灰霾天气

珠江三角洲气溶胶云造成的严重灰霾天气

Heavy haze weather resulting from aerosol cloud over Pearl River Delta

沿海工业城市灰霾天气增多与海盐气溶胶粒子的关系

The Relationships between Increased Haze Weather in Coastal Industrial Cities and Sea Salt Aerosol Particles

1月份灰霾天气出现频率高达60.9%，灰霾天气下大气能见度与PM2.5浓度密切相关；

The hazes occured in high frequency in January , the frequency equaled to 60.9 % . There was close relation of visibility with PM_ ( 2.5 ) concentration in the haze weather .

对广州灰霾天气中单个气溶胶颗粒物的研究

Study on Single Aerosol Particle in Haze in Guangzhou City

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

气溶胶卫星滴结构粒子与灰霾天气的相关性

Correlation Between Particles with Satellite Droplet Structure and Haze

近年来，杭州市灰霾天气频发。

Haze happened frequently in recent years in Hangzhou .

江西省一次冷空气过程中的灰霾天气过程分析研究

Analysis of a Large-scale haze in a cold air invasion process over Jiangxi province

广州市灰霾天气对呼吸系统健康影响的研究

Effect of Haze on Respiratory Health in Guangzhou

在灰霾天气，常可以观察到一些特殊的颗粒物，它们带有卫星滴结构。

It was often found that some particles with satellite droplet structure in the haze .

广州市灰霾天气对城区居民心血管疾病影响的时间序列分析

Effect of Atmospheric Haze on Cardiovascular Diseases of Urban Residents in Guangzhou : a Time-Series Analysis

灰霾天气下大气能见度还与细颗粒物的粒径分布密切相关。

There was also close correlation between visibility and the aerodynamic diameter distribution of fine particulate mater .

但科学家们还不知道这些次生气溶胶在灰霾天气中起到什么样的作用。

Yet scientists don 't know how big of a role these secondary aerosols play in smog .

西安市灰霾天气时间和区域分布特征及影响因素

The regional distributive characteristics , the influencing factors and time of the ash haze weather in Xi'an City

灰霾天气条件下天津市环境空气中颗粒物污染特征分析

The Level of Particle Pollution and Its Variation Traits in Tianjin Area ′ s Atmosphere under Hazy Conditions

在沙尘天气和灰霾天气下，大气气溶胶的光学特性有显著的差异。

And the aerosol optical and physical characteristics are very different under weather conditions of dust storm and haze .

由于经济规模的迅速扩大和城市化进程的加快，都市霾现象或灰霾天气日趋严重，霾与雾的区分成为一个非常现实，又迫切需要解决的问题。

With the rapid development of economic scale and urbanization , the phenomena of haze or haze weather have become increasingly serious .

本概念模型有助于开展珠江三角洲地区大气扩散能力的分析与气流停滞区或灰霾天气的预测预报。

The model can be used to the diffusion capability analysis , the forecasting of air pollution potential or haze forecasting , etc.

同时选择广东省内未报道出现过灰霾天气的肇庆市作为地区对照。

Zhaoqing city was chosen to be the control city which had not been reported influenced by the haze weather in Guangdong province .

根据气象部门统计结果，珠江三角洲地区人口集中的几个城市近十年来频繁发生灰霾天气。

According to the statistical results provided by the weather department , the haze weather was recorded among these cities frequently in the decade .

与污染事件相比，在非灰霾天气中各污染物之间的相关性相对较高，说明在灰霾事件中，在复杂的气象条件影响下，污染物来源相对复杂。

There are relative high correlations among speries in non-haze days to haze episodes , suggesting more complex sources in haze episode . 6 .

统计分析发现，热带气旋能够造成珠江三角洲一定数量的灰霾天气，但占灰霾总日数的比例不大。

Statistical analyses revealed that tropical cyclone could produce haze in the PRD . But the number of haze days related to TC was quite small .

与对照地区大气颗粒物相比较，受灰霾天气影响地区采集的大气颗粒物在引起AM炎性反应、氧化负荷与氧化损伤、以及细胞毒性方面均表现出更强的作用。

Compared with the control urban PM2.5 , the haze affected urban air PM2.5 had the greater effects on AM in the inflammatory response , oxidation strain and cellular toxicity .

方法：选择珠江三角洲地区受灰霾天气影响严重的广州市、东莞市和深圳市三个城市市区作为灰霾颗粒物采样地点。

Methods : Guangzhou city , Shenzhen city and Dongguan City were chosen as the representative sampling sites which were influenced by the haze weather in the Pearl River Delta .

尤其值得注意的是沿海工业城市灰霾天气增长较快，沿海工业城市灰霾天气增多与海盐气溶胶粒子的氯损耗机制关系密切。

It is especially noteworthy that haze weather grows rather quickly in coastal industrial cities , which is mostly caused by the mechanism of chlorine loss in sea salt aerosol .

灰霾天气主要表现在空气质量和能见度降低，而能见度又与空气颗粒物浓度有关。

The haze weather manifests mainly in the reduction of air quality and the visibility . However , it is well known that visibility is related to the particulate matter concentration .

此外，该博士论文也对广州地区典型的大气污染现象&灰霾天气的判定标准和形成原因等进行了探讨。

In addition to these , based on the real measurements , this thesis also proposed a measuring standard for haze weather and discussed the possible causes of the haze in Guangzhou .

当上海吹西风、西南风和西北风时容易出现灰霾天气，而北风、东北风、东风、东南风对大气有一定的净化作用，灰霾天气出现较少。

When westerly , southwest or northwest winds blowed in Shanghai , there was higher occurrence of haze , while north , northeast east or south-east wind could purify atmosphere leading to less haze .

比较灰霾天气形成前后一些气溶胶颗粒物的形态结构和元素组成，它们有着较明显的差异。这些观察提供了证据：在灰霾天气过程中，部分粒子的组成有可能发生了变化。

Comparing the shape and elemental composition of single aerosol particle before and after the haze formation , it suggests that some particles are changing in the nature during the process of the haze formation .

当出现灰霾天气时，大气中细粒子较多，气溶胶质量浓度、体积浓度、黑碳浓度和气溶胶散射系数均比非灰霾天气时高。

During haze periods , there were more fine particles in the atmosphere and aerosol mass concentration , volume concentration , black carbon concentration and aerosol scattering coefficient were higher than those during non-haze periods .