منابع مشابه
Modeling the diurnal variation of nitrate during the Pittsburgh Air Quality Study
[1] A thermodynamic model, the Gibbs Free-Energy Minimization model (GFEMN), was used to simulate the partitioning of PM2.5 nitrate aerosol and nitric acid using highly timeresolved inorganic measurements collected at the Pittsburgh Air Quality Study during July 2001 and January 2002. Model results were evaluated using independent, high time resolution measurements of aerosol nitrate. The mean ...
متن کاملAmbient aerosol size distributions and number concentrations measured during the Pittsburgh Air Quality Study (PAQS)
Twelve months of aerosol size distributions from 3 to 560 nm, measured using scanning mobility particle sizers are presented with an emphasis on average number, surface, and volume distributions, and seasonal and diurnal variation. The measurements were made at the main sampling site of the Pittsburgh Air Quality Study from July 2001 to June 2002. These are supplemented with 5 months of size di...
متن کاملWater content of ambient aerosol during the Pittsburgh Air Quality Study
[1] The aerosol water content and volumetric growth factors of fine particulate matter were measured during July–August 2001 and January–June 2002 in an urban park about 6 km from downtown Pittsburgh, Pennsylvania. Most of the aerosol during the study was transported to the region from other areas, and its composition and concentration were characteristic of the regional particulate matter in t...
متن کاملAir Quality in Latin America: An Overview
We would like to thank Sofía Villarreal for all her efforts assisting with data collection and her support to the author for preparing the figures and tables in the report. We would like to thank all of the individuals from the cities who provided data on request and those who reanalyzed their data to provide the statistics we needed. Special thanks also go to the reviewers: as well as many oth...
متن کاملAtmospheric volatile organic compound measurements during the Pittsburgh Air Quality Study: Results, interpretation, and quantification of primary and secondary contributions
[1] Primary and secondary contributions to ambient levels of volatile organic compounds (VOCs) and aerosol organic carbon (OC) are determined using measurements at the Pittsburgh Air Quality Study (PAQS) during January–February and July–August 2002. Primary emission ratios for gas and aerosol species are defined by correlation with species of known origin, and contributions from primary and sec...
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ژورنال
عنوان ژورنال: Atmospheric Environment
سال: 2004
ISSN: 1352-2310
DOI: 10.1016/j.atmosenv.2004.03.003