WebJul 28, 2016 · Science to Understand Air Quality. EPA physical scientist Dr. Havala Pye researches air quality, specifically particles from both emissions and those that form in the atmosphere by interactions of gas-phase compounds. She uses the Community Multiscale Air Quality (CMAQ) model to better understand how these particles work and how they … WebMDA8 O 3 is lower with CMAQ531 throughout the rest of theyear, particularly in spring, due in part to reduced O 3 from thelateral boundary conditions (BCs), which generally increases MDA8 O 3 bias in spring and fall ( ∼0.5 µg m−3 ). For daily24 h average PM 2.5 , CMAQ531 has lower concentrations on average inspring and fall, higher ...
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WebApr 2, 2024 · Havala O T Pye 1 2 , Emma L D'Ambro 2 3 , Ben H Lee 2 , Siegfried Schobesberger 2 4 , Masayuki Takeuchi 5 , Yue Zhao 2 , Felipe Lopez-Hilfiker 2 , … WebAug 15, 2024 · Azimeh Zare 1 2 , Kathleen M Fahey 1 , Golam Sarwar 1 , Ronald C Cohen 2 3 , Havala O T Pye 1 Affiliations 1 National Exposure Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, …
WebAug 1, 2024 · Organic aerosol (OA) is a major component of particulate matter 1, 2 and has significant impacts on human health, Earth’s radiation budget, and climate. 3 The impacts vary depending on the size distribution and the chemical composition of the particles. 4 Properties of OA remain incompletely characterized, and OA is a poorly understood … WebDec 16, 2024 · Correspondence to Havala O. T. Pye. Ethics declarations. Competing interests. The authors declare no competing interests. Peer review information. Nature ...
WebJun 1, 2015 · Annmarie G. Carlton, Havala O. T. Pye, Kirk R. Baker, Christopher J. Hennigan. Additional Benefits of Federal Air-Quality Rules: Model Estimates of Controllable Biogenic Secondary Organic Aerosol. Environmental Science & … Webauthor = "Pye, {Havala O.T.} and Athanasios Nenes and Becky Alexander and Ault, {Andrew P.} and Barth, {Mary C.} and Clegg, {Simon L.} and Collett, {Jeffrey L.} and Fahey, {Kathleen M.} and Hennigan, {Christopher J.} and Hartmut Herrmann and Maria Kanakidou and Kelly, {James T.} and Ku, {I. Ting} and {Faye McNeill}, V. and Nicole Riemer and …
WebSep 15, 2024 · Havala O.T. Pye, Nicholas Heath, Benjamin Murphy & Rohit Mathur Conference paper First Online: 15 September 2024 1713 Accesses 13 Citations Part of the Springer Proceedings in Complexity book series (SPCOM) Abstract
WebA set of three papers ( Pye et al., 2015; Pye et al., 2024; Budisulistiorini et al., 2024) were recently awarded a 2024 EPA Scientific and Technological Achievement Award ( STAA) … ins tempoWebHavala O.T. Pye, PhD - UNC Gillings School of Global Public Health E : [email protected] US EPA Research Triangle Park (RTP) Curriculum Vitae Dr. Pye … instem share price today uk poundsWebIn this paper, we evaluate the performance of the chemical transport model 'CHIMERE' over large Indian region (4-37.5 degrees N; 67-88.5 degrees E) for multipl j maunder tractorsWebQuantitative constraints on autoxidation and dimer formation from direct probing of monoterpene-derived peroxy radical chemistry Yue Zhaoa,b,1, Joel A. Thorntonb,1, and Havala O. T. Pyeb,c aSchool of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; bDepartment of Atmospheric Sciences, … jma warranty reviewshttp://wiki.seas.harvard.edu/geos-chem/index.php?title=ISORROPIA_II instem share priceWebMay 16, 2024 · Dr. Havala O. T. Pye joined the EPA in 2011 as a research scientist in the Office of Research and Development. Her work focuses on computational methods to understand fine particles and other airborne pollutants that can impact human health and climate change. Specifically, she leads work on the representation of fine particles and … instem share price today ukWebEvaluation of CMAQ NO 2 Predictions Over the U.S. Using Ground-based and Satellite Observations Havala O. T. Pye1, Sergey L. Napelenok1, Robert W. Pinder1, Daven K. Henze2, Randall V. Martin3, and K. Wyat Appel1 1Atmospheric Modeling and Analysis Division, U.S. Environmental Protection Agency; 2Department of Mechanical … j maw and son