Dissolved radon and gaseous mercury in the Mediterranean seawater

被引：8

作者：

Vaupotic, Janja ^{[1
]}

Gregoric, Asta ^{[1
]}

Kotnik, Joze ^{[1
]}

Horvat, Milena ^{[1
]}

Pirrone, Nicola ^{[2
]}

机构：

[1] Jozef Stefan Inst, Dept Environm Sci, Radon Ctr, Ljubljana 1001, Slovenia

[2] CNR, Inst Atmospher Pollut, Div Rende, I-87036 Arcavacata Di Rende, Italy

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 2008年 / 99卷 / 07期

关键词：

radon (Rn-222); dissolved gaseous mercury (DGM); Mediterranean basin; seawater profiles; correlation;

D O I：

10.1016/j.jenvrad.2007.12.023

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Vertical profiles of radioactive radon gas (Rn-222) and dissolved gaseous mercury (DGM) in seawater in the Mediterranean Basin have been measured. They were found in the range 1.7-19.3 Bq m(-3) and 22-200 ng m(-3), respectively, at the bottom and 2.0-20.0 Bq m(-3) and 6-80 80 ng m(-3), respectively, at the surface. Preliminary results indicate a positive correlation between concentrations of both gases at some locations, but not at others. Further analyses will be performed, after Ra-226 contents in sediment and water have been determined, taking into account environmental parameters such as air and water temperatures, barometric pressure and water flow, in order to better interpret these profiles. (C) 2008 Published by Elsevier Ltd.

引用

页码：1068 / 1074

页数：7

共 42 条

[1] ABIOTIC REDUCTION OF MERCURY BY HUMIC SUBSTANCES IN AQUATIC SYSTEM - AN IMPORTANT PROCESS FOR THE MERCURY CYCLE [J].

ALLARD, B ;

ARSENIE, I .

WATER AIR AND SOIL POLLUTION, 1991, 56 :457-464

[2]

ALLEN MC, 2002, EOS T AGU S, V83

[3] Production and loss of dissolved gaseous mercury in coastal seawater [J].

Amyot, M ;

Gill, GA ;

Morel, FMM .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 1997, 31 (12) :3606-3611

[4]

AVINO R, 2001, EGS 26 GEN ASS NIC F

[5] RADIUM-226 ANND RADON-222 - CONCENTRATION IN ATLANTIC AND PACIFIC OCEANS [J].

BROECKER, WS ;

LI, YH ;

CROMWELL, J .

SCIENCE, 1967, 158 (3806) :1307-&

[6] Estimating groundwater discharge into the northeastern Gulf of Mexico using radon-222 [J].

Cable, JE ;

Burnett, WC ;

Chanton, JP ;

Weatherly, GL .

EARTH AND PLANETARY SCIENCE LETTERS, 1996, 144 (3-4) :591-604

[7] Estimating the groundwater contribution into Florida Bay via natural tracers, 222Rn and CH4 [J].

Corbett, DR ;

Dillon, K ;

Burnett, W ;

Chanton, J .

LIMNOLOGY AND OCEANOGRAPHY, 2000, 45 (07) :1546-1557

[8] Photoreduction of mercury in sea water and its possible implications for Hg0 air-sea fluxes [J].

Costa, M ;

Liss, PS .

MARINE CHEMISTRY, 1999, 68 (1-2) :87-95

[9] Nutrient and radium fluxes from submarine groundwater discharge to Port Royal Sound, South Carolina [J].

Crotwell, AM ;

Moore, WS .

AQUATIC GEOCHEMISTRY, 2003, 9 (03) :191-208

[10] Monitoring the atmospheric stability by using radon concentration measurements: A study in a Central Italy site [J].

Desideri, D. ;

Roselli, C. ;

Feduzi, L. ;

Meli, M. Assunta .

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2006, 270 (03) :523-530

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