Zobrazeno 1 - 10
of 37
pro vyhledávání: '"N. H. Frank"'
Publikováno v:
Atmospheric Chemistry and Physics, Vol 12, Iss 14, Pp 6593-6607 (2012)
Secondary organic aerosol (SOA) in the southeastern US is investigated by analyzing the spatial-temporal distribution of water-soluble organic carbon (WSOC) and other PM2.5 components from 900 archived 24-h Teflon filters collected at 15 urban or rur
Externí odkaz:
https://doaj.org/article/cc91da85cec540d8ac883875cd628873
Publikováno v:
Atmospheric Chemistry and Physics, Vol 11, Iss 6, Pp 2933-2949 (2011)
Data from the Interagency Monitoring of Protected Visual Environments (IMPROVE) network are used to estimate organic mass to organic carbon (OM/OC) ratios across the United States by extending previously published multiple regression techniques. Our
Externí odkaz:
https://doaj.org/article/bbf4aeb8318e4021be12c67849ac0924
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 14, Pp 6839-6853 (2010)
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-soluble organic carbon (WSOC), water-soluble ions and
Externí odkaz:
https://doaj.org/article/01f20db182d743ab817dfeeaeaf7fa1f
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 12, Pp 5223-5239 (2010)
Field blanks (bQF) and backup filters (quartz-fiber behind quartz-fiber filter; QBQ) have been adopted by US long-term air quality monitoring networks to estimate PM2.5 organic carbon (OC) sampling artifacts. This study documents bQF and QBQ carbon l
Externí odkaz:
https://doaj.org/article/fd51fc89f80549bf9a72740f74f0b3c2
Publikováno v:
Advances in Meteorology, Vol 2013 (2013)
The rural/remote IMPROVE network (Interagency Monitoring of Protected Visual Environments) and the Environmental Protection Agency's urban Chemical Speciation Network have measured PM2.5 organic (OC) and elemental carbon (EC) since 1989 and 2000, res
Externí odkaz:
https://doaj.org/article/149717734ecb443a9e0d41e53d77fd5b
Publikováno v:
Atmospheric Chemistry and Physics, Vol 10, Iss 13, Pp 5965-5977 (2010)
Light absorption of fine particle (PM2.5) aqueous extracts between wavelengths of 200 and 800 nm were investigated from two data sets: 24-h Federal Reference Method (FRM) filter extracts from 15 Southeastern US monitoring sites over the year of 2007
Publikováno v:
Atmospheric Chemistry and Physics. 10:5223-5239
Field blanks (bQF) and backup filters (quartz-fiber behind quartz-fiber filter; QBQ) have been adopted by US long-term air quality monitoring networks to estimate PM2.5 organic carbon (OC) sampling artifacts. This study documents bQF and QBQ carbon l
Publikováno v:
Journal of Geophysical Research: Atmospheres. 117
[1] Speciated aerosol composition data from the rural Interagency Monitoring for Protected Visual Environments (IMPROVE) network and the Environmental Protection Agency's urban/suburban Chemical Speciation Network (CSN) were combined to evaluate and
Publikováno v:
Journal of Geophysical Research. 116
[1] Biomass burning is one of the major sources of organic carbon aerosols. However, there is limited information on the temporal and spatial variability for the impact of biomass burning in most regions of the United States, including the upper Midw
Publikováno v:
Journal of Geophysical Research. 116
[1] Carbohydrate measurements of ambient samples can provide insights into the biogenic fraction of the organic carbon (OC) aerosol. However, lack of measurement on a routine basis limits data analysis. In a companion paper, 1 year of archived 1-in-6