Results 261 to 270 of about 505,344 (284)
Some of the next articles are maybe not open access.
Dry deposition of so2 on agricultural crops
Atmospheric Environment (1967), 1978Abstract A micrometeorological method has been used to estimate dry deposition rates of sulphur dioxide on agricultural crops from vertical gradients of SO2 concentration, windspeed and air temperature above the crop surface. Field measurements in a wide range of atmospheric and surface conditions enabled analysis of the results to separate the ...
openaire +2 more sources
1990
Deposition phenomena are the way in which the atmosphere cleans itself. The process is efficient as only a few gases (most notably CO 2) show signs of global increase in spite of the large emission of pollutants from both natural and anthropogenic sources.
openaire +1 more source
Deposition phenomena are the way in which the atmosphere cleans itself. The process is efficient as only a few gases (most notably CO 2) show signs of global increase in spite of the large emission of pollutants from both natural and anthropogenic sources.
openaire +1 more source
Squeeze-Film Hydrogel Deposition and Dry Micropatterning
Analytical Chemistry, 2010In this technical note, we demonstrate a squeeze-film based spacer-free method for creating controllable submicrometer hydrogel films on planar substrates that can be used to photolithographically fabricate hydrogel microstructures. This new technique improves the photolithographic resolution and yield by providing a uniform and low-defect hydrogel ...
Ding, Zhenwen +2 more
openaire +3 more sources
Wet and dry deposition of Chernobyl releases
Nature, 1988The passage of the Chernobyl plume over the United Kingdom in May 1986 led to the deposition of radionuclides on the ground by wet and dry deposition processes. Here we analyse rainfall during the passage of the plume and the published monitoring data obtained afterwards, and show that levels of deposited 137Cs can be closely related to rainfall ...
M J, Clark, F B, Smith
openaire +2 more sources
1982
This contribution reviews the subject of wet and dry deposition. The various precipitation scavenging processes, and factors which influence them are described. A brief quantitative description of scavenging rate coefficients and washout ratios is given.
openaire +1 more source
This contribution reviews the subject of wet and dry deposition. The various precipitation scavenging processes, and factors which influence them are described. A brief quantitative description of scavenging rate coefficients and washout ratios is given.
openaire +1 more source
Dry Deposition of Trace Elements
1989This chapter reviews current knowledge of dry deposition of trace elements from the atmosphere. The process of dry deposition is presented through descriptions of physical processes and mathematical relations. Semi-empirical models are discussed and compared.
Cliff I. Davidson, Yee-Lin Wu
openaire +1 more source
1991
Dry deposition refers to the transfer of gases and particles to ground-based surfaces, where they are removed. The two main reasons for studying dry deposition are: (1) The determination of the quantity of a species entering the environment. Interest usually centers on species such as SO4 −2 or toxic trace metals that may harm components of aquatic or ...
openaire +1 more source
Dry deposition refers to the transfer of gases and particles to ground-based surfaces, where they are removed. The two main reasons for studying dry deposition are: (1) The determination of the quantity of a species entering the environment. Interest usually centers on species such as SO4 −2 or toxic trace metals that may harm components of aquatic or ...
openaire +1 more source
Rates of Dry Deposition Determined Using Wet/Dry Collectors
Journal of Geophysical Research: Atmospheres, 1985Daily samples of dryfall were collected during the June 1982 Dry Deposition Measurement Intercomparison Study at Champaign, Illinois, using six Aerochem Metrics wet/dry collectors. Upon completion of the field experiment, these samples were analyzed at the Environmental Measurements Laboratory for pH and for their concentrations of major inorganic ...
H. W. Feely +3 more
openaire +1 more source
Environmental Monitoring and Assessment, 2008
This study presents the chemical composition of dry deposition by using dry deposition plate and water surfaces sampler during daytime and nighttime sampling periods at a near highway traffic sampling site. In addition, the characterization for mass and water soluble species of total suspended particulate (TSP), PM2.5 and PM10 were also studied at this
Chia-Chun, Chu +3 more
openaire +2 more sources
This study presents the chemical composition of dry deposition by using dry deposition plate and water surfaces sampler during daytime and nighttime sampling periods at a near highway traffic sampling site. In addition, the characterization for mass and water soluble species of total suspended particulate (TSP), PM2.5 and PM10 were also studied at this
Chia-Chun, Chu +3 more
openaire +2 more sources
1982
ABSTRACT The available information regarding deposition of NOX is very limited. Estimates, however, indicate that dry deposition of NO2 and of nitrates may give a significant contribution to the removal of NOX from the lower troposphere, on a global scale as well as in industrialised zonis.
openaire +1 more source
ABSTRACT The available information regarding deposition of NOX is very limited. Estimates, however, indicate that dry deposition of NO2 and of nitrates may give a significant contribution to the removal of NOX from the lower troposphere, on a global scale as well as in industrialised zonis.
openaire +1 more source