[Parameters: Topic='OCEANS', Term='OCEAN CHEMISTRY', Variable_Level_1='INORGANIC MATTER']
NARSTO EPA_SS_PITTSBURGH Particulate Matter Composition DataEntry ID: NARSTO_EPA_SS_PITT_PM_COMP
Abstract: The NARSTO_EPA_SS_PITTSBURGH_PM_COMPOSITION_DATA were obtained between June 30 and September 1, 2001 during the Pittsburgh Air Quality Study (PAQS). The data set provides Particulate Matter Composition Data of the following types:
1) PM2.5 nitrate and PM2.5 sulfate.
2) Semi-Continuous Organic and Elemental Carbon Measurements.
3) Air concentrations of water soluble PM2.5 aerosol species and water ... soluble gases, as measured with the CMU steam sampler - IC combination.
4) Manual filter-based PM2.5 element measurements from microwave decomposition of filters followed by Inductively Coupled Plasma Mass Spectrometer analysis.
5) Manual filter-based PM10 element measurements from microwave decomposition of filters and Inductively Coupled Plasma Mass Spectrometer analysis.
6) Manual filter-based PM2.5 inorganic composition with analysis performed using ion chromatography.
7) Manual filter-based PM2.5 organic and elemental carbon measurements with analysis performed using a Thermal Optical Transmission carbon analyzer.
8) Measurements of PM composition size distributions using a MOUDI cascade impactor.
9) PM2.5 organic and elemental carbon concentrations from an activated carbon denuder/quartz filter/charcoal impregnated fibre filter backup combination. Quartz filters analyzed using a Thermal/Optical transmittance carbon analyzer.
10) Fog chemistry data
PAQS, along with the Pittsburgh Supersite Program, was a comprehensive, multi-disciplinary investigation to characterize the ambient PM in the Pittsburgh region, to improve understanding the links between ambient PM and public health, and to develop new instrumentation for PM measurements.
The Pittsburgh Supersite was designed to achieve several objectives: to determine the physical and chemical characteristics of PM in the Pittsburgh region; to develop and evaluate the next generation of atmospheric aerosol monitoring techniques; to update emission profiles for important regional sources; to quantify the impact of the various sources on the local PM concentrations; and to predict changes in the PM characteristics due to proposed changes in emissions. The last objective was based on concurrent modeling studies and was designed to support the development of regulations. These objectives were addressed through four components of the research: (1) ambient monitoring at a central site and a set of satellite sites in the region; (2) an instrument development and evaluation study; (3) a data analysis and synthesis component; and (4) a comprehensive modeling component.
The central Supersite was located on a grassy hill in a large urban park adjacent to the Carnegie Mellon University campus, approximately 6km east of downtown Pittsburgh. It was separated from the city in the predominant upwind direction (south and west) by roughly 1km of parkland. It was at least several hundred meters from any other major source of air pollution: the site was positioned approximately 50m past the end of a dead end street, and several hundred meters from the nearest heavily traveled street. Five additional sites were operated as Satellite sites to character the spatial variation of the PM. The measurement campaign lasted for 14 months (July 2001-September 2002). Intensive monitoring was performed during two periods, from 1 July to 3 August, 2001 (ESP01) and 1 January to 15 January, 2002 (ESP02). Baseline monitoring was conducted for the rest of the study. Baseline measurements included daily filter samples for fine particle mass and composition (OC/EC, major ions, elemental composition).
The U.S. EPA Particulate Matter (PM) Supersites Program was an ambient air monitoring research program designed to provide information of value to the atmospheric sciences, and human health and exposure research communities. Eight geographically diverse projects were chosen to specifically address these EPA research priorities: (1) to characterize PM, its constituents, precursors, co-pollutants, atmospheric transport, and its source categories that affect the PM in any region; (2) to address the research questions and scientific uncertainties about PM source-receptor and exposure-health effects relationships; and (3) to compare and evaluate different methods of characterizing PM including testing new and emerging measurement methods.
NARSTO (formerly North American Research Strategy for Tropospheric Ozone) is a public/private partnership, whose membership spans government, the utilities, industry, and academe throughout Mexico, the United States, and Canada. The primary mission is to coordinate and enhance policy-relevant scientific research and assessment of tropospheric pollution behavior; activities provide input for science-based decision-making and determination of workable, efficient, and effective strategies for local and regional air-pollution management. Data products from local, regional, and international monitoring and research programs are available.
Start Date: 2001-06-30Stop Date: 2001-09-01
Data Set Progress
Role: DIF AUTHOR
Email: support-asdc at earthdata.nasa.gov
NASA Langley Atmospheric Science Data Center User and Data Services NASA Langley Research Center Mail Stop 157D
Province or State: VA
Postal Code: 23681-2199
Role: TECHNICAL CONTACT
Email: alr at andrew.cmu.edu
Cabada, J. C.; Rees, S. L.; Takahama, S.; Khlystov, A.; Pandis, S. N.; Davidson, C. I.; Robinson, A. L., Mass size distributions and size resolved chemical composition of fine particulate matter at the Pittsburgh supersite. Atmospheric Environment 2004, 38, 3127-3141.
Khlystov, A.; Zhang, Q.; Jimenez, J. L.; Stanier, C.; Pandis, S. N.; Canagaratna, M. R.; Fine, P.; Misra, C.; Sioutas, C., In situ ... concentration of semi-volatile aerosol using water-condensation technology. Journal of Aerosol Science 2005, 36, (7), 866-880.
Pekney, N. J.; Davidson, C. I., Determination of trace elements in. ambient aerosol samples. Analytica Chimica Acta 2005, 540, (2), 269-277.
Polidori, A.; Turpin, B. J.; Lim, H. J.; Cabada, J. C.; Subramanian, R.; Robinson, A. L.; Pandis, S. N., Secondary organic aerosol formation in the Pittsburgh area using semi-continuous OC and EC measurements. Aerosol Science & Technology 2005, submitted.
Subramanian, R.; Khlystov, A. Y.; Cabada, J. C.; Robinson, A. L., Positive and Negative Artifacts in Particulate Organic Carbon Measurements with Denuded and Undenuded Sampler Configurations. Aerosol Science & Technology 2004, 38, (S1), 27-48.
Subramanian, R.; Khlystov, A. Y.; Robinson, A. L., Effect of peak inert-mode temperature on Elemental Carbon measured using Thermal-Optical Analysis. Aerosol Science and Technology 2006, 40, (10), 763-780.
Wittig, A. E.; Anderson, N.; Khlystov, A. Y.; Pandis, S. N.; Davidson, C. I.; Robinson, A. L., Pittsburgh Air Quality Study Overview. Atmospheric Environment 2004, 38, (20), 3107-3125.
Wittig, A. E.; Takahama, S.; Khlystov, A. Y.; Pandis, S. N.; Hering, S.; Kirby, B.; Davidson, C., Semi-continuous PM2.5 inorganic composition measurements during the Pittsburgh air quality study. Atmospheric Environment 2004, 38, (20), 3201-3213.
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Creation and Review Dates
DIF Creation Date: 2013-12-04
Last DIF Revision Date: 2014-04-07