Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Maria J. Zufall"'
Publikováno v:
Journal of the Air & Waste Management Association. 51:1271-1279
Particulate matter (PM) exposure data from the U.S. Environmental Protection Agency (EPA)-sponsored 1998 Baltimore and 1999 Fresno PM exposure studies were analyzed to identify important microenvironments and activities that may lead to increased par
Publikováno v:
Aerosol Science and Technology. 35:887-898
In this study, particle transport and deposition were studied in a wind tunnel by measuring both the airflow turbulence characteristics and deposition of monodisperse uranine particles of 2.0-4.5 w m diameter on smooth, horizontal surfaces. Turbulenc
Autor:
Ronald Williams, Janet Burke, Richard Kwok, Linda Sheldon, Anne Rea, Cynthia Howard-Reed, Debra Walsh, Jack C. Suggs, Maria J. Zufall
Publikováno v:
Journal of the Air & Waste Management Association. 50:1125-1132
In population exposure studies, personal exposure to PM is typically measured as a 12- to 24-hr integrated mass concentration. To better understand short-term variation in personal PM exposure, continuous (1-min averaging time) nephelometers were wor
Autor:
Maria J. Zufall, Mary F. Striegel, Susan Finger, Vicken Etyemezian, Weiping Dai, C. I. Davidson
Publikováno v:
Atmospheric Environment. 34:2399-2412
Soiling on the walls of limestone buildings can be washed off when the surface erodes due to rain impingement. In this study, the delivery of rain to the 42-story Cathedral of Learning in Pittsburgh, Pennsylvania, represented by a 30 m×30 m×160 m r
Autor:
Valerie Zartarian, Edwin J. Furtaw, Janet Burke, Marc L. Rigas, Halûk Özkaynak, Maria J. Zufall
Publikováno v:
Environmental Health Perspectives
To help address the Food Quality Protection Act of 1996, a physically based probabilistic model has been developed to quantify and analyze dermal and nondietary ingestion exposure and dose to pesticides. The Residential Stochastic Human Exposure and
Publikováno v:
Atmospheric Environment. 33:4273-4281
Previous estimates of dry deposition to water surfaces were generally based on deposition to flat, solid surfaces. This paper examines the effects of waves on dry deposition rates by numerically simulating particle trajectories over wave surfaces. Ai
Publikováno v:
Environmental Science & Technology. 32:1615-1622
Dry deposition flux and aerosol size distribution measure ments were made concurrently aboard the RV Lake Guardian 19 km east of the Chicago shoreline during summer 1994 to assess atmospheric inputs of minor and trace elements to southern Lake Michig
Publikováno v:
Environmental Science & Technology. 32:1623-1628
Dry deposition flux measurements to surrogate surfaces and airborne concentration measurements of Zn-containing, S-rich, and soil particles (analyzed by scanning electron microscopy) and Al, Ba, Br, Ca, Cl, Cu, K, Mg, Mn, Na, Ti, and V (analyzed by n
Publikováno v:
Environmental Science & Technology. 32:584-590
Growth of hygroscopic aerosols near water surfaces is believed to enhance dry deposition rates, which are a strong function of particle size. Previous dry deposition models estimate hygroscopic growth by assuming equilibrium between aerosols and wate
Publikováno v:
Journal of exposure analysis and environmental epidemiology. 11(6)
A population exposure model for particulate matter (PM), called the Stochastic Human Exposure and Dose Simulation (SHEDS-PM) model, has been developed and applied in a case study of daily PM(2.5) exposures for the population living in Philadelphia, P