Sources and Composition of PM2.5 at the National Energy Technology Laboratory in Pittsburgh during July and August 2000
详细信息 查看全文
- 作者：Richard R. Anderson ; Donald V. Martello ; Paul C. Rohar ; Brian R. Strazisar ; Joseph P. Tamilia ; Karl Waldner ; Curt M. White ; William K. Modey ; Nolan F. Mangelson ; and Delbert J. Eatough
- 刊名：Energy & Fuels
- 出版年：2002
- 出版时间：March 2002
- 年：2002
- 卷：16
- 期：2
- 页码：261 - 269
- 全文大小：138K
- 年卷期：v.16,no.2(March 2002)
- ISSN：1520-5029
文摘
PM2.5 mass was measured daily with three batch samplers, a PM2.5 R&P Partisol-Plus FRM,an Andersen RAAS, and a BYU PC-BOSS, and continuously with a TEOM monitor during Julyand August 2000. PM2.5 composition was also determined. These data are part of an ongoingPM2.5 characterization program centered around a sampling site at the National EnergyTechnology Laboratory Pittsburgh campus. The composition and concentrations of PM2.5 wereboth highly variable during this time period. Likely sources of PM2.5 during low concentrationperiods were transportation, coal-fired boiler, and other emissions generated in the local area.For these periods, the average concentration of PM2.5 was 13 
g/m3 and 70% of the PM2.5 masswas carbonaceous material, including semivolatile organic material that was lost in varyingdegrees from both the TEOM and FRM samplers. In contrast, much higher concentrations ofPM2.5 were associated with transport of pollutants to the site. Analysis of meteorological andback-trajectory data suggests that these pollutants were emitted elsewhere during a period ofhigh atmospheric pressure and were subsequently transported to the site with the passage of afrontal system. When the PM2.5 collected at the site originated from the west or southwest, theconcentrations averaged 31 g/m3 and ammonium sulfate averaged 54% of the PM2.5 mass.Scanning election microscopy and trace element analyses are consistent with the association ofhigh concentration PM2.5 episodes with transport of coke and iron processing, coal-fired boiler,and other emissions from the Ohio River Valley region to the NETL site. Preliminary observationson the use of SEM and PIXE data in source apportionment at the NETL site are given.
g/m3 and 70% of the PM2.5 masswas carbonaceous material, including semivolatile organic material that was lost in varyingdegrees from both the TEOM and FRM samplers. In contrast, much higher concentrations ofPM2.5 were associated with transport of pollutants to the site. Analysis of meteorological andback-trajectory data suggests that these pollutants were emitted elsewhere during a period ofhigh atmospheric pressure and were subsequently transported to the site with the passage of afrontal system. When the PM2.5 collected at the site originated from the west or southwest, theconcentrations averaged 31 g/m3 and ammonium sulfate averaged 54% of the PM2.5 mass.Scanning election microscopy and trace element analyses are consistent with the association ofhigh concentration PM2.5 episodes with transport of coke and iron processing, coal-fired boiler,and other emissions from the Ohio River Valley region to the NETL site. Preliminary observationson the use of SEM and PIXE data in source apportionment at the NETL site are given.