搜索结果: 1-15 共查到“大气科学 Particulate matter”相关记录17条 . 查询时间(0.101 秒)
Temporal Variations in Airborne Particulate Matter Levels at an Indoor Bus Terminal and Exposure Implications for Terminal Workers
PM10 PM2.5 Ultrafine particle Bus terminal Station ticket inspector Exposure level
2016/3/28
This study investigates temporal variations in PM levels in Taipei bus terminal and assesses exposure levels for bus
terminal workers. Measurement results show that temporal variations in PM levels i...
Size Distribution of Airborne Particulate Matter and Associated Metallic Elements in an Urban Area of an Industrial City in Korea
Size distribution Metals Seasonal PM PCA Enrichment factor
2016/3/28
This study analyzed the size distribution of airborne particulate matter (PM) and 13 metallic elements associated with it.
PM samples were collected using an eight-stage cascade impactor in a busy ur...
Relating hygroscopicity and composition of organic aerosol particulate matter
HTDMA SOA organic precursors a smog chamber
2011/2/25
A hygroscopicity tandem differential mobility analyzer (HTDMA) was used to measure the water uptake (hygroscopicity) of secondary organic aerosol (SOA) formed during the chemical and photochemical oxi...
Temperature-induced volatility of molecular markers in ambient airborne particulate matter
molecular markers ambient airborne particulate matter
2011/1/19
Molecular markers are organic compounds used to represent known sources of particulate matter (PM) in statistical source apportionment studies. The utility of molecular markers depends on, among other...
Climate impact on airborne particulate matter concentrations in California using seven year analysis periods
Climate impact airborne particulate matter California seven year analysis periods
2010/11/30
The effect of global climate change on the annual average concentration of fine particulate matter (PM2.5) in California was studied using a climate-air quality modeling system composed of global thro...
Seasonal cycle and temperature dependence of pinene oxidation products, dicarboxylic acids and nitrophenols in fine and coarse air particulate matter
Seasonal cycle temperature dependence pinene oxidation products fine and coarse air particulate matter
2010/9/1
Filter samples of fine and coarse air particulate matter (PM) collected over a period of one year in central Europe (Mainz, Germany) were analyzed for water-soluble organic compounds (WSOCs), includin...
Organic particulate matter formation at varying relative humidity using surrogate secondary and primary organic compounds with activity corrections in the condensed phase obtained using a method based on the Wilson equation
Organic particulate matter formation surrogate secondary primary organic the Wilson equation
2010/8/13
Secondary organic aerosol (SOA) formation in the atmosphere is currently often modeled using a multiple lumped "two-product" (N·2p) approach. The N·2p approach neglects: 1) variation of activity coeff...
Nitric acid and particulate matter measurements at Athens, Greece, in connection with corrosion studies
Nitric acid particulate matter measurements Athens Greece
2009/11/19
For a long time, scientists have been concerned about the effects of air pollution on materials and especially on the monuments of the cultural heritage. The EU funded a project, entitled MULTI-ASSESS...
Intra-community spatial variability of particulate matter size distributions in Southern California/Los Angeles
Intra-community spatial variability particulate matter size distributions Southern California/Los Angeles
2009/3/13
Ultrafine particle (UFP) number concentrations vary significantly on small spatial and temporal scales due to their short atmospheric lifetimes and multiplicity of sources. To determine UFP exposure g...
Organic, elemental and inorganic carbon in particulate matter of six urban environments in Europe
Organic elemental inorganic carbon particulate matter Europe
2009/1/14
A series of 7-week sampling campaigns were conducted in urban background sites of six European cities as follows: Duisburg (autumn), Prague (winter), Amsterdam (winter), Helsinki (spring), Barcelona (...
Wildfire particulate matter in Europe during summer 2003: meso-scale modeling of smoke emissions, transport and radiative effects
Wildfire particulate matter meso-scale modeling smoke emissions transport radiative effects
2008/12/16
The present study investigates effects of wildfire emissions on air quality in Europe during an intense fire season that occurred in summer 2003. A meso-scale chemistry transport model CHIMERE is use...
PM measurement campaign HOVERT in the Greater Berlin area: model evaluation with chemically specified particulate matter observations for a one year period
PM HOVERT Greater Berlin chemically specified particulate matter
2008/11/27
The HOVERT (HOrizontal and VERtical Transport of ozone and particulate matter) campaign held in the Berlin Brandenburg area in Eastern Germany from September 2001 to September 2002 allowed to collect ...
Sources of organic carbon in fine particulate matter in northern European urban air
organic carbon fine particulate matter northern European urban air
2008/11/24
major fraction of fine particle matter consists of organic carbon (OC) but its origin is still inadequately known. In this study the sources of OC were investigated in the northern European urban env...
Seven year particulate matter air quality assessment from surface and satellite measurements
particulate matter air quality assessment satellite measurement
2008/11/11
Using seven years of the Moderate Resolution Imaging Spectroradiometer (MODIS) aerosol optical thickness (AOT) data and ground measurements of particulate matter mass over one site in the Southeastern...
A case of extreme particulate matter concentrations over Central Europe caused by dust emitted over the southern Ukraine
extreme particulate matter concentrations Central Europe dust southern Ukraine
2008/10/30
On 24 March 2007, an extraordinary dust plume was observed in the Central European troposphere. Satellite observations revealed its origins in a dust storm in Southern Ukraine, where large amounts of ...