搜索结果: 1-9 共查到“大气科学 PM 2.5”相关记录9条 . 查询时间(0.015 秒)
衡阳市中心城区冬季雾霾天PM2.5中重金属污染初探
大气PM2.5 重金属 污染水平 富集因子
2018/10/8
为了解衡阳市中心城区雾霾天PM2.5中重金属污染特征与来源,2014~2015年连续2年对衡阳市城区冬季大气PM2.5进行采集.通过滤膜称重法测量PM2.5质量浓度,微波消解—原子吸收光谱法(AAS)测定PM2.5中Pb、Cd、Cu、Cr、Ni和Fe等6种重金属元素质量浓度,结合富集因子法对衡阳城区大气PM2.5进行来源解析.结果表明:采样期间,衡阳市中心城区冬季雾霾天PM2.5平均质...
衡阳市中心城区冬季雾霾天PM2.5中重金属污染初探
大气PM2.5 重金属 污染水平 富集因子
2018/10/8
为了解衡阳市中心城区雾霾天PM2.5中重金属污染特征与来源,2014~2015年连续2年对衡阳市城区冬季大气PM2.5进行采集.通过滤膜称重法测量PM2.5质量浓度,微波消解—原子吸收光谱法(AAS)测定PM2.5中Pb、Cd、Cu、Cr、Ni和Fe等6种重金属元素质量浓度,结合富集因子法对衡阳城区大气PM2.5进行来源解析.结果表明:采样期间,衡阳市中心城区冬季雾霾天PM2.5平均质...
Biomass burning impact on PM 2.5 over the southeastern US during 2007: integrating chemically speciated FRM filter measurements, MODIS fire counts and PMF analysis
the southeastern US FRM filter measurements MODIS fire counts PMF analysis
2010/8/16
Archived Federal Reference Method (FRM) Teflon filters used by state regulatory agencies for measuring PM2.5 mass were acquired from 15 sites throughout the southeastern US and analyzed for water-solu...
Observations of OM/OC and specific attenuation coefficients (SAC) in ambient fine PM at a rural site in central Ontario,Canada
Observations OM/OC and specific attenuation coefficients ambient fine PM rural site
2010/3/16
Ambient particulate matter (PM) samples were collected on quartz filters at a rural site in central Ontario during an intensive study in 2007. The concentrations of organic carbon (OC), pyrolysis orga...
The representation of dust transport and missing urban sources as major issues for the simulation of PM episodes in a Mediterranean area
dust transport missing urban sources major issues PM episodes Mediterranean area
2009/11/9
Due to its adverse effects on human health, atmospheric particulate matter (PM) constitutes a growing challenge for air quality management. It is also a complex subject of study. The understanding of ...
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 ...
Redox activity and chemical speciation of size fractioned PM in the communities of the Los Angeles-Long Beach harbor
Redox PM Los Angeles-Long Beach harbor
2008/11/25
In this study, two different types of assays were used to quantitatively measure the redox activity of PM and to examine its intrinsic toxicity: 1) in vitro exposure to rat alveolar macrophage (AM) ce...
Asian dust storm influence on North American ambient PM levels: observational evidence and controlling factors
Asian dust storm North American
2008/11/7
New observational evidence of the trans-Pacific transport of Asian dust and its contribution to the ambient particulate matter (PM) levels in North America was revealed, based on the interannual varia...
PM speciation and sources in Mexico during the MILAGRO-2006 Campaign
PM speciation sources Mexico MILAGRO-2006 Campaign
2008/10/24
Levels of PM10, PM2.5 and PM1 and chemical speciation of PM10 and PM2.5 were measured during the MILAGRO campaign (1st to 31st March 2006, but extended in some cases until 6th April) at four urban, on...
