: GLANDS; HAZARDS; INTAKE; ISLANDS; MATERIALS; MICRONESIA; OCEANIA;

ORGANS; TOXIC MATERIALS; VERTEBRATES

Subject Categories:

(-1989)

552000
550200
10/5/798

00767695

520100*

-- Environment, Aquatic -- Basic Studies --

-- Public Health
-- Biochemistry
{Item 498 from file:

103)

INS-81-010696; EDB-81-075956

Title: Origin of particulate organic carbon in the marine atmosphere as
indicated by it stable carbon isotopic composition

Author(s): Chesselet,
Lambert, C.E.

Affiliation:
91190

R.;

Fontugne,

M.;

Buat-Menard,

Centre des Faibles Radioactivites,

Gif-sur-Yvette,

France

Source: Geophys. Res. Lett. (United States)
Publication Date: Apr 1981
p 345-348
Document Type: Journal Article

Language: English

Journal Announcement:
Subfile:

INS

EDB8106

(US Atomindex input);

AIP

P.;

Ezat,

U.;

Laboratoire mixte CNRS-CEA,

v 8:4.

Coden:

GPRLA

(SPIN).

Country of Origin: France
Abstract: Organic carbon céncentration and isotopic composition were
determined in samples of atmospheric particulate matter collected in
1979 at remote marine locations (Enewetak atoll, Sargasso Sea) during
the SEAREX (Sea-Air Exchange) program field experiments. Atmospheric
Particulate Organic Carbon (POC) concentrations were found to be in the

range of 0.3 to 1.2 mg. m/sup -3/,

in agreement with previous

literature data. The major mass of POC was found on the smallest
particles (r<0.5 mm). The /sup 13/C//sup 12/C of the small particles is

close to the one expected (d/sup 13/C = 26 +- 2/sup 0///sub infinity/)

for atmospheric POC of continental origin. For all the samples analysed
so far, it appears that more than 80% of atmospheric POC over remote
marine areas is of continental origin. This can be explained either by
long-range transport of small sized continental organic aserosols or by
the production of POC in the marine atmosphere from a vapor phase
organic carbon pool of continental origin. The POC in the large size
fraction of marine

aerosols

(<20%

of the total concentration)

is

likely

to have a direct marine origin since its carbon isotopic composition is
close to the expected value (d/sup 13/C = -21 +- 2/sup 0///sub 00/) for
POC associated with sea-salt droplets transported to the marine
atmosphere. ;

Major Descriptors: *CARBON -- ISOTOPE RATIO; *CARBON -- QUANTITY RATIO;
*EARTH ATMOSPHERE -- ISOTOPE RATIO
Descriptors: ENIWETOK; ORGANIC COMPOUNDS; SARGASSO SEA
Broader Terms: ATLANTIC OCEAN; ELEMENTS; ISLANDS; MARSHALL ISLANDS;
MICRONESIA; NONMETALS; OCEANIA; SEAS; SURFACE WATERS

Subject Categories: 500200*
-- Environment, Atmospheric -- Chemicals
Monitoring & Transport -- (-19839)
INIS Subject Categories: C52*
-- Radiation Hazards & Safety Evaluations of
Nuclear Installations
10/5/799
00761550

Author(s):

(Item 499 from file: 103)
ERA-06-021022; INS-81-009524;
Noshkin,

V.E.;

Eagle,

R.J.;

EDB-81-069810

Wong,

K.M.;

Jokela,

T.A.; .

groundwater at the Marshall Islands

Corporate Source:
Publication Date:

Lawrence Livermore National Lab.,
16 Mar 1981
p 37

Report Number(s):
UCRL-52853 (Pt.2)
Contract Number (DOE): W-7405-ENG-48

Document Type: Report
Language: English
Journal Announcement:

EDB8106

CA

(USA)

9003963

Robison, W.L.
Title: Radionuclide concentrations and dose assessment of cistern water and

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