Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Ram A. Hashmonay"'
Autor:
Ke Du, Mark J. Rood, Michael R. Kemme, Sotiria Koloutsou-Vakakis, Ram A. Hashmonay, Byung J. Kim, Wangki Yuen, Chad Meister
Publikováno v:
Aerosol and Air Quality Research. 15:1613-1626
A hybrid-optical remote sensing (hybrid-ORS) method was developed to quantify mass emission factors (EFs) for fugitive particulate matter with aerodynamic diameters ≤ 10 μm (PM10) and ≤ 2.5 μm (PM2.5). In-situ range-resolved extinction coeffici
Autor:
Robert Kagann, Shih Ying Chang, Cheng-Ping Hsu, Chang-Fu Wu, Yu-Syuan Wu, M. Chase, Chun-Ping Chao, Tzong-gang Wu, Ram A. Hashmonay
Publikováno v:
Atmospheric Environment. 82:335-342
Fugitive emission of air pollutants is conventionally estimated based on standard emission factors. The Vertical Radial Plume Mapping (VRPM) technique, as described in the US EPA OTM-10, is designed to measure emission flux by directly monitoring the
Autor:
Byung J. Kim, Ke Du, Mark J. Rood, Ravi Varma, Ellsworth J. Welton, Michael R. Kemme, Ram A. Hashmonay
Publikováno v:
Environmental Science & Technology. 45:658-665
The emissions of particulate matter (PM) from anthropogenic sources raise public concern. A new method is described here that was developed to complete in situ rapid response measurements of PM mass emissions from fugitive dust sources by use of opti
Autor:
Ram A. Hashmonay, Nathan D. Swan, M. Chase, Gary R. Hater, Roger B. Green, Eben D. Thoma, C. Doug Goldsmith
Publikováno v:
Journal of Environmental Engineering. 136:769-776
In 2006, the U.S. Environmental Protection Agency posted a new test method on its website called Other Test Method 10 (OTM 10) which describes direct measurement of pollutant mass emission flux from area sources using ground-based optical remote sens
Publikováno v:
Journal of Environmental Science and Health, Part A. 44:1011-1018
Improved characterization of distributed emission sources of greenhouse gases such as methane from concentrated animal feeding operations require more accurate methods. One promising method is recently used by the USEPA. It employs a vertical radial
Autor:
John Ortega, Michael W. Holdren, Darrell W. Joseph, M. Lizabeth Alexander, Ram A. Hashmonay, Jan Satola, Matthew K. Newburn, Alexander Laskin, Chester W. Spicer, Howard T. Mayfield, Bradley Goodwin, Kenneth A. Cowen, Robert Kagann
Publikováno v:
Atmospheric Environment. 43:2612-2622
Aircraft emissions affect air quality on scales from local to global. More than 20% of the jet fuel used in the U.S. is consumed by military aircraft, and emissions from this source are facing increasingly stringent environmental regulations, so impr
Autor:
Darrell W. Joseph, Chester W. Spicer, Matthew Tefend, Kenneth A. Cowen, Jan Satola, Howard T. Mayfield, Bradley Goodwin, Ram A. Hashmonay, Michael W. Holdren, Robert Kagann
Publikováno v:
Journal of the Air & Waste Management Association. 59:531-539
The Strategic Environmental Research and Development Program (SERDP) has initiated several programs to develop and evaluate techniques to characterize emissions from military aircraft to meet increasingly stringent regulatory requirements. This paper
Autor:
Mark Modrak, Phil Norwood, Eben D. Thoma, Donna Lee Jones, Eric S. Hall, Ram A. Hashmonay, Cary Doman Secrest, Richard C. Shores
Publikováno v:
Atmospheric Environment. 43:753-757
This technical note describes a United States Environmental Protection Agency (U.S. EPA) measurement project to determine elemental mercury (Hg0) emissions from a mercury cell chlor-alkali (MCCA) facility in the southeastern U.S. during a 53-day moni
Autor:
Walter Vergara, Ram A. Hashmonay, Alejandro Deeb, Mark Modrak, Victor D'Amato, Carlos Suarez, Michiel Doorn, Carlos Aparicio
Publikováno v:
Proceedings of the Water Environment Federation. 2006:7200-7205
Publikováno v:
Atmospheric Environment. 37:1879-1888
Open path Fourier transform infrared (OP-FTIR) spectroscopy is one of several optical remote sensing (ORS) techniques that can identify and quantify many air pollutants. These instruments provide path-integrated measurements along the scanning beam p