Order number 940330-160606-96
-001-001
page 21
set 11 with 111 of 111 items
LIMITATION CODE
ABSTRACT
UNL
Atmospheric aerosols collected at Enewetak{ Atoll in the
tropical North Pacific were exposed to seawater in
laboratory experiments to assess the impact of
atmospheric aerosols on lead chemistry in surface
seawater. The net atmospheric flux of soluble lead to
the ocean is between
KEYWORDS
EDB Item
29
PRIMARY REPORT NUMBER
TITLE ENGLISH
SUBTITLE ENGLISH
PERSONAL AUTHOR/AFFIL
CORPORATE TEXT
PUB. DATE (YYMMDD)
LIMITATION CODE
ABSTRACT
16 and 32 pmol cm{sup
{minus}2}/yr
at Enewetak. The stable lead isotopic composition of
soluble aerosol lead indicates that it is of
anthropogenic origin. Anthropogenic aerosol lead from
Central and North America appears to be less soluble
and/or to dissolve less rapidly than that from Asia.
Dissolved organic matter and possibly lower pH appear to
increase the nonaluminosilicate aerosol lead solubility
and/or dissolution rate. The isotopic composition of
lead in air, seawater and dry deposition suggests that
after deposition in the ocean, nonaluminosilicate
particulate lead can be reinjected into the atmosphere
during sea salt aerosol production.
AEROSOLS/dissolution ;AEROSOLS/synthesis ;
LEAD/environmental transport ;AEROSOLS; DISSOLUTION;
SYNTHESIS;AIR;AIR POLLUTION; ALUMINIUM SILICATES; ASIA;
BENCH-SCALE EXPERIMENTS ; DEPOSITION; ENIWETOK; LEAD ; LEAD
ISOTOPES; ORGANIC MATTER;PACIFIC OCEAN; PARTICULATES; PH
VALUE;POLLUTION SOURCES; SALTS; SEAWATER; SOLUBILITY; WATER
CHEMISTRY
BNL--46439
Whole-body counting in the Marshall Islands
1989--1991 Extended Abstract
Sun,
L.C.;
Clinton,
J.;
Kaplan,
Brookhaven National Lab.,
910000
Upton,
E.;
NY
Meinhold,
C.B.
(United States)
UNL
In 1978 the Marshall Islands Radiological Safety
Program was organized to perform radiation measurements
and assess radiation doses for the people of the Bikini,
Enewetak, Rongelap and Utirik Atolls. One of the major
field components of this program is whole- body counting
(WBC). WBC is used to monitor the quantity of gammaemitting radionuclides present in individuals. A primary
objective of the program was to establish {gup
137}Cesium body contents among the Enewetak, Rongelap
and Utirik populations. {sup 137}Cs was the only
gamma-emitting fission radionuclide detected in the l,
967 persons monitored. {sup 137}Cs body burdens tended
to increase with age for both sexes, and were higher in
males. The average {sup 137}Cs dose Annual Effective
9003459