Filters: Tags: Radiation measurements (X)
14 results (256ms)|
Filters
Date Range
Extensions Types Contacts
Categories Tag Types Tag Schemes |
Radon concentrations in soil gas were measured by the track-etch method in 60 shallow holes, each 70 cm deep and supported by a capped plastic tube, along several major faults in central California during 1975-1985. This set of data was analyzed to investigate the seasonal variability of soil-gas radon concentration in an area which has various geological conditions but similar climate. The results show several different patterns of seasonal variations, but all of which can be largely attributed to the water-saturation and moisture-retention characteristics of the shallow part of the soil. During the rainy winter and spring seasons, radon tended to be confined underground by the water-saturated surface soil which...
Categories: Publication;
Types: Citation;
Tags: ASFA 2: Ocean Technology Policy & Non-Living Resources; ASFA,
Atmosphere,
Downward irradiance,
ENSO,
El Nino,
Categories: Publication;
Types: Citation;
Tags: Belarus,
P 8000 RADIATION,
Pollution Abstracts,
Ukraine, Chernobyl,
gamma radiation,
The Silverado wildfire occurred from September 12 to 20, 2014, burning 960 acres in Orange County, California. Soil samples from within the burn area were obtained and the thermoluminescence (TL) properties of those samples were compared against a control sample to understand wildfire heating. We performed a series of experiments investigating the degree to which the control differed from the wildfire soil samples. This work showed that soil heated by a wildfire had a distinctly different glow curve shape than the unburned soil sample. Moreover, it was possible to see changes in the TL signal as a function of soil depth in wildfire-heated samples. Our experiments suggest that minimal soil heating occurred below...
Categories: Publication;
Types: Citation;
Tags: Aerosols,
Air sampling,
Lead,
P 8000 RADIATION; P 0000 AIR POLLUTION,
Particle size,
|
