Atmospheric deposition is an important pathway for air pollutants entering the environment. In order to better understand both dry and wet deposition of PCDD/Fs in ambient air, two cities – Guangzhou and Nanjing in Southern China, were investigated. The monthly dry deposition fluxes of total-PCDD/Fs-WHO2005-TEQ were in the range of 60.6– 560 and 104–1160 pg WHO2005-TEQ m month during 2014 in Gu...

The atmospheric transport and ground deposition of radioactive isotopes 131I and 137Cs during and after the Fukushima Dai-ichi Nuclear Power Plant (FDNPP) accident (March 2011) are investigated using the Weather Research and Forecasting-Chemistry (WRF-Chem) model. The aim is to assess the skill of WRF in simulating these processes and the sensitivity of the model’s performance to various parame...

A pilot Study was conducted from August 1999 through August 2000 to estimate the loading of selected pollutants from the atmosphere to the San Francisco Estuary. Particulate in the ambient air and precipitation samples were collected at three locations. Dry deposition flux of copper, nickel, cadmium, and chromium was approximately 1100?73, 600?35, 22?15, and 1300?90 μg/m/year, respectively. The...

Concurrent ambient air and dry deposition samples were collected during two sampling periods at the Aliaga industrial region in Izmir, Turkey. Sigma 15-PAH (particulate+gas) concentrations ranged between 7.3 and 44.8 ng m(-3) (average+/-S.D., 25.2+/-8.8 ng m(-3)) and 10.2-71.9 ng m(-3) (44.1+/-16.6 ng m(-3)) in summer and winter, respectively. Winter/summer individual ambient PAH concentration ...

The emission of inorganic divalent reactive gaseous mercury (RGM) from a mercury cell chlor-alkali plant (MCCAP) cell building and the impact on near field (100 km) dry deposition was investigated as part of a larger collaborative study between EPA, University of Michigan, Oak Ridge National Laboratory, Chlorine Institute, and Olin Corporation in February 2000. Measurements in the cell building...

The purpose of this study was to increase our understanding of the gaseous elemental mercury (GEM, Hg◦) fluxes between the atmosphere and soils. Moreover, we wanted to quantify the annual GEM flux, identify the controls, and compare the GEM flux to annual rates of gaseous oxidized mercury (GOM) dry deposition and wet deposition of total mercury. We measured GEM fluxes using the modified Bowen r...

Arid areas play a significant role in the global nitrogen cycle. Dry and wet deposition of inorganic nitrogen (N) species were monitored at one urban (SDS) and one suburban (TFS) site at Urumqi in a semi-arid region of central Asia. Atmospheric concentrations of NH3, NO2, HNO3, particulate ammonium and nitrate (pNH4 (+) and pNO3 (-)) concentrations and NH4-N and NO3-N concentrations in precipit...

1. Survey 2. Settling Chambers 2.1. Description of Settling Chambers 2.2. Handling of settled dust 3. Cyclone Separators 3.1. Operating Principle 3.2. Efficiency of Cyclone Separators 3.3. Applications 4. Mechanical centrifugal separators 5. Brownian Movement 6. Dry Atmospheric Deposition 6.1. Survey 6.2. Influence of Particle Dimensions 6.2.1. Coarse Particles 6.2.2. The finest Particles 6.2.3...

Citation: Rahav E, Paytan A, Chien C-T, Ovadia G, Katz T and Herut B (2016) The Impact of Atmospheric Dry Deposition Associated Microbes on the Southeastern Mediterranean Sea Surface Water following an Intense Dust Storm. Front. Mar. Sci. 3:127. doi: 10.3389/fmars.2016.00127 The Impact of Atmospheric Dry Deposition Associated Microbes on the Southeastern Mediterranean Sea Surface Water followin...

We report a rare case of dry eyes and dry mouth caused by primary amyloidosis. A 66-year-old woman with keratoconjunctivitis sicca and xerostomia died of acute respiratory failure. Shirmer's test, gum test, and sialography indicated Sjögren's syndrome. Lip biopsy revealed amyloid deposition around the salivary ducts. Bence-Jones protein was noted in the urine. At autopsy, amyloid deposition was...