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pro vyhledávání: '"Warren H. White"'
Autor:
Warren H. White
Covered bridges are gaining attention as states and counties are making large investments in the repair and preservation of existing covered bridges, offering tours and building new ones. This work documents all extant covered bridges--vehicle, railr
Publikováno v:
Atmospheric Environment. 189:41-49
Multi-element reference materials (ME-RMs) mimicking atmospheric aerosol composition were generated using certified multi-element solutions on PTFE filters for use in calibration and quality checks of x-ray fluorescence (XRF) analysis. The ME-RMs ref
Autor:
Krystyna Trzepla, Travis Ancelet, Owen Butler, Armand Jonkers, Andrea McWilliams, Perry Davy, Laura Saucedo, Marco Van Der Haar, Nicole P. Hyslop, Sinan Yatkin, Warren H. White, Steven D. Kohl, Michel Gerboles
Eight institutes using 12 different instruments analyzed newly developed multi-element reference materials (RM) for atmospheric particulate matter (PM) measurements. These RM have the potential to fill a gap in the currently available quality assuran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::213d0fb64081655c94f6becbdc969bd1
Publikováno v:
Atmospheric Environment. 244:117977
As long-term speciated PM2.5 monitoring programs, the Interagency Monitoring of Protected Visual Environments (IMPROVE) and Chemical Speciation Network (CSN) were designed with different objectives but apply similar analytical methods to 24hr filter
Autor:
Jenny L. Hand, Kristi A. Gebhart, Warren H. White, Bret A. Schichtel, Nicole P. Hyslop, Thomas E. Gill
Publikováno v:
Geophysical Research Letters. 43:4001-4009
Particulate matter (PM)2.5 dust concentrations (mineral particles with aerodynamic diameters less than 2.5 µm) typically peak in spring and early summer at rural and remote sites across the southwestern United States. Trend analyses indicate that sp
Autor:
Nicole P. Hyslop, Krystyna Trzepla, Owen Butler, Marco Van Der Haar, Travis Ancelet, Laura Saucedo, Armand Jonkers, Andrea McWilliams, Steven D. Kohl, Perry Davy, Warren H. White, Sinan Yatkin, Michel Gerboles
Publikováno v:
Microchemical Journal. 158:105225
Multi-element reference materials (ME-RM) were prepared with 28 elements on polytetrafluoroethylene (PTFE) filters utilizing a custom aerosol deposition system and certified multi-element solutions designed to mimic atmospheric particulate compositio
Publikováno v:
Spectrochimica Acta Part B: Atomic Spectroscopy. 171:105948
Single element/compound reference materials (RM) were generated from high purity salts or nanoparticles on 25 and 47 mm PTFE filters for use in calibration and quality checks of X-ray fluorescence (XRF) analysis. The aerosols were deposited using a c
Publikováno v:
Environmental sciencetechnology. 52(20)
The Interagency Monitoring of Protected Visual Environments (IMPROVE) network measures the chemical composition of atmospheric particulate matter at over 160 locations throughout the United States. As part of the routine quality control process, we n
Publikováno v:
Environmental Science & Technology. 49:9247-9255
The IMPROVE (Interagency Monitoring of Protected Visual Environments) network has characterized fine particulate matter composition at locations throughout the United States since 1988. A main objective of the network is to evaluate long-term trends