for other accidents involving fallout such as the recent reactor
accident at Chernobyl. Particularly important has been the unexpected
importance of radioactive iodine in the fallout in producing thyroid
abnormalities.
Major Descriptors: *HUMAN POPULATIONS -- BIOLOGICAL RADIATION EFFECTS
i
Descriptors: BRAVO EVENT; FALLOUT; MARSHALL ISLANDS; NEOPLASMS
EXPLOSIONS;
DISEASES;
PROJECT;
CASTLE
EFFECTS;
BIOLOGICAL
Terms:
Broader
ISLANDS; MICRONESIA; NUCLEAR EXPLOSIONS; OCEANIA; POPULATIONS;
RADIATION EFFECTS; SURFACE EXPLOSIONS
Subject Categories: 560161*
-- Radionuclide Effects, Kinetics, & ‘
Toxicology -- Man
INIS Subject Categories: C2110*
-- Radioisotope effects, kinetics &
toxicology in man
10/5/330
(Item 30 from file: 103)
03298951
EDB-92-061708
Title: Enhancement factors for resuspended aerosol radioactivity: Effects
of topsoil disturbance
Author(s) /Editor(s): Shinn, J.H.
Corporate Source:
Lawrence Livermore National Lab., CA (United States)
(Code: 9513035)
Sponsoring Organization:
DOE
USDOE, Washington, DC (United States)
Conference Title: 5. international conference on precipitation scavenging
and atmosphere surface exchange process
Conference Location:
Jul 1991
Publication Date:
Richland,
Nov 1991
WA
(13 p)
Report Number(s):
UCRL-JC-105257
Order Number: DE92009696
Contract Number
(DOE):
(United States)
Conference Date:
15-19
CONF-9107104-~23
W-7405-ENG-48
Document Type: Report; Conference Literature
Language: In English
Journal Announcement: EDB9209
Availability:
Distribution:
OSTI;
NTIS;
(Report) :0
INIS;
(MF) :4
GPO Dep.
MN-702
Subfile:
ERA
(Energy
Research Abstracts); ETD (Energy Technology Data
Exchange);
INS
(US
Atomindex
input);
NTS (NTIS).
TIC (Technical
Information Center)
US DOE Project/NonDOE Project: P
Country of Origin: United States
Country of Publication: United States
Abstract: The enhancement factor for airborne radionuclides resuspended by
wind is defined as the ratio of the activity density (Bq g{sup
{minus}1}) in the aerosol to the activity density in the underlying
surface of contaminated soil. Enhancement factors are useful for
assessment of worst-case exposure scenarios and transport conditions,
and are one of the criteria for setting environmental standards for
radioactivity in soil. This paper presents results of experinfental
{sup 239}Pu was measured when air
Major Descriptors: *RADIOACTIVE EFFLUENTS
~- CONTAMINATION
Descriptors: AEROSOLS;
-- ENVIRONMENTAL IMPACTS;
GEOGRAPHICAL VARIATIONS;
*SOILS
PLUTONIUM 239
Broader Terms: ACTINIDE ISOTOPES; ACTINIDE NUCLEI; ALPHA DECAY
RADIOISOTOPES; COLLOIDS; DISPERSIONS; EVEN-ODD NUCLEI; HEAVY NUCLEI;
ISOTOPES; MATERIALS; NUCLEI; PLUTONIUM ISOTOPES; RADIOACTIVE MATERIALS;
RADIOACTIVE WASTES; RADIOISOTOPES; SOLS; SPONTANEOUS FISSION
RADIOISOTOPES; VARIATIONS; WASTES; YEARS LIVING RADIOISOTOPES
Subject Categories:
540130*
-- Environment, Atmospheric -- Radioactive
5003b 1b
studies where resuspension of
concentrations were equilibrated to the soil surface. Enhancement
factors were observed for several types of man-made disturbances
(bulldozer-blading, soil raking, vacuum-cleaning) and natural
disturbances (springtime thaw, soil-drying, wildfire). For some cases,
enhancement factors are compared over range of geographical locations
(Bikini Atoll, California, Nevada, and South Carolina). The
particle-size distributions of aerosol activity are compared to
particle-size distributions of the underlying soil.