Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Stephen R. McDow"'
Autor:
Meredith G. Lassiter, Jiajia Lin, Jana E. Compton, Jennifer Phelan, Robert D. Sabo, John L. Stoddard, Stephen R. McDow, Tara L. Greaver
Publikováno v:
Science of The Total Environment. 881:163409
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9f86db7e9c667764fe8735e4188b3ff
https://doi.org/10.1016/j.scitotenv.2023.163409
https://doi.org/10.1016/j.scitotenv.2023.163409
Autor:
Stephen R. McDow
In this chapter, the role of gas/particle partitioning within filters during sampling as a cause of sampling artifact errors is explored. First, a mass balance model is developed to explain variations of particulate organic carbon concentration with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7768b27b6c7f7efc2a6cc6b7f3357492
https://doi.org/10.1201/9781003078340-6
https://doi.org/10.1201/9781003078340-6
Publikováno v:
Atmospheric Environment. 175:25-32
Exposure to particulate matter air pollution with a nominal mean aerodynamic diameter less than or equal to 2.5 μm (PM2.5) has been associated with health effects including cardiovascular disease and death. Here, we add to the understanding of urban
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::da1f404c03546d8688be623ff1da8f42
https://doi.org/10.1016/j.atmosenv.2017.11.055
https://doi.org/10.1016/j.atmosenv.2017.11.055
Autor:
Stephen R. McDow, Jennifer Richmond-Bryant, Sue Kimbrough, R. Chris Owen, Michelle Oakes, Stephen E. Graham, Michelle Snyder
Publikováno v:
Air Quality, Atmosphere & Health. 10:611-625
This paper describes a new regression modeling approach to estimate on-road nitrogen dioxide (NO2) and oxides of nitrogen (NOX) concentrations and near-road spatial gradients using data from a near-road monitoring network. Field data were collected i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a62d823aa2a5b5b0b7db5e2979695c82
https://doi.org/10.1007/s11869-016-0455-7
https://doi.org/10.1007/s11869-016-0455-7
Publikováno v:
Analytical and Bioanalytical Chemistry. 397:2451-2463
Recovery, precision, limits of detection and quantitation, blank levels, calibration linearity, and agreement with certified reference materials were determined for two classes of organic components of airborne particulate matter, polycyclic aromatic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::685c9f98e85607373183e8c359e826f1
https://doi.org/10.1007/s00216-010-3833-2
https://doi.org/10.1007/s00216-010-3833-2
Solid phase extraction cleanup for non-polar and moderately polar molecular markers of PM2.5 sources
Autor:
John M. Turlington, Stephen R. McDow
Publikováno v:
Atmospheric Environment. 44:2161-2165
A solid phase extraction cleanup step substantially improved analytical efficiency and data quality for measurements of non-polar and moderately polar organic molecular marker concentrations in airborne particulate matter. Rapid gas chromatography co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b86db383e1410b9891165c6c30eaaa61
https://doi.org/10.1016/j.atmosenv.2010.03.005
https://doi.org/10.1016/j.atmosenv.2010.03.005
Autor:
Stephen R. McDow, David A. Olson
Publikováno v:
Atmospheric Environment. 43:2862-2867
Concentrations of elemental carbon (EC), organic carbon (OC), and 33 organic source markers (12 alkanes, 18 polycyclic aromatic hydrocarbons and ketones, and 3 hopanes) are reported near a highway in Raleigh, NC with an annual average daily traffic c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e739e88e00de102deedcde3533fe3059
https://doi.org/10.1016/j.atmosenv.2009.03.016
https://doi.org/10.1016/j.atmosenv.2009.03.016
Publikováno v:
Atmospheric Environment. 42:6897-6904
This analysis investigated different possible strategies for source apportionment of airborne fine particulate matter (PM2.5) using data collected as part of the Pittsburgh Air Quality Study (PAQS). More specifically, we apportioned the organic fract
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c959ceb7eb585265d175dcee4ab7fe2
https://doi.org/10.1016/j.atmosenv.2008.05.011
https://doi.org/10.1016/j.atmosenv.2008.05.011
Autor:
Carvin Stevens, John M. Turlington, Ron Williams, Rachelle M. Duvall, David A. Olson, Stephen R. McDow
Publikováno v:
Atmospheric Environment. 42:1742-1751
Concentrations of PM2.5, elemental carbon (EC), organic carbon (OC), 30 organic source markers (13 alkanes, 14 polycyclic aromatic hydrocarbons and ketones, and 3 hopanes) and 19 inorganic source markers are reported from residential indoor, resident
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a1536956696c30d26b14ebab4cb6c20
https://doi.org/10.1016/j.atmosenv.2007.11.035
https://doi.org/10.1016/j.atmosenv.2007.11.035
Autor:
H. Dirk Felton, John Graham, Sania W. Tong Argao, Min Li, Thomas McKenna, Monica A. Mazurek, Alan Leston, Stephen R. McDow, Steve Bailey, Charles Pietarinen, Lee Alter
Publikováno v:
Aerosol Science and Technology. 42:50-63
This study demonstrates an approach for evaluating a molecular level sampling and analysis protocol for organic marker compounds at the high picogram m−3 (ppt) to low nanogram m−3 (ppb) mass concentrations in urban and background receptor sites.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36ab328f7dc12441ab00226380a07edb
https://doi.org/10.1080/02786820701787936
https://doi.org/10.1080/02786820701787936