Plutonium aided reconstruction of caesium atmospheric fallout in European topsoils

Abstract The average annual flux of Pb-210 from the atmosphere to lake surfaces and to the bottom sediments was measured in seven small lakes located on the Laurentian Shield. Direct atmospheric fallout of Pb-210 was 136 ± 16 Bq m-2 a-1 Streams from the lakes' catchments input an additional 5 to 473 Bq m-2 a-1. Only 16 to 80 percent of the total input was found in the lake sediments. The fractional rate constant for Pb-210 sedimentation from the water column ranged from 0.25 to 5.3 per annum.

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Atmospheric fallout of radionuclides in peat bogs in the Western Segment of the Russian Arctic

Environmental Science and Pollution Research ◽

10.1007/s11356-020-12224-7 ◽

2021 ◽

Author(s):

Evgeny Yakovlev ◽

Ruslan Spirov ◽

Sergey Druzhinin ◽

Alina Ocheretenko ◽

Anna Druzhinina ◽

...

Keyword(s):

Peat Bogs ◽

Russian Arctic ◽

Atmospheric Fallout ◽

Western Segment

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CU, Cd, Pb, Be, Hg in atmospheric fallout in baden‐württemberg and eastern France area in autumn 1992‐spring 1993 period in cities, in autumn 1992‐autumn 1993 period in other areas

Toxicological and Environmental Chemistry ◽

10.1080/02772249709358478 ◽

1997 ◽

Vol 61 (1-4) ◽

pp. 117-125

Author(s):

Marek Lisiewicz ◽

Jerzy Golimowski ◽

Peter Krauß ◽

Thomas Wallenhorst

Keyword(s):

Atmospheric Fallout

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7Be activity variation in atmospheric fallout and weather factors in 2004–2005 in Samarkand

Atomic Energy ◽

10.1007/s10512-007-0063-6 ◽

2007 ◽

Vol 102 (5) ◽

pp. 402-405 ◽

Cited By ~ 2

Author(s):

A. N. Azimov ◽

F. R. Kungurov ◽

A. K. Mukhamedov ◽

A. N. Safarov ◽

I. T. Muminov

Keyword(s):

Atmospheric Fallout ◽

Weather Factors ◽

Activity Variation

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Sulfur isotopic view on the sources of sulfur in atmospheric fallout along the coast of the Sea of Japan

Atmospheric Environment ◽

10.1016/s1352-2310(96)00278-6 ◽

1997 ◽

Vol 31 (9) ◽

pp. 1339-1348 ◽

Cited By ~ 72

Author(s):

Tsuyoshi Ohizumi ◽

Norio Fukuzaki ◽

Minoru Kusakabe

Keyword(s):

Sea Of Japan ◽

The Sea Of Japan ◽

Atmospheric Fallout

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Polycyclic Aromatic Hydrocarbons and Mercury in Sediments from Two Isolated Lakes in Central and Northern Canada

Water Science & Technology ◽

10.2166/wst.1993.0602 ◽

1993 ◽

Vol 28 (8-9) ◽

pp. 43-52 ◽

Cited By ~ 17

Author(s):

W. L. Lockhart ◽

P. Wilkinson ◽

B. N. Billeck ◽

G. J. Brunskill ◽

R. V. Hunt ◽

...

Keyword(s):

Sediment Cores ◽

Hudson Bay ◽

Atmospheric Fallout ◽

Long Period ◽

The North ◽

Northwestern Ontario ◽

Forest Region ◽

Rate Of Increase ◽

Polycyclic Aromatic ◽

Recent Sediments

Sediment cores were taken from two isolated Canadian lakes, a southern lake in the boreal forest region of northwestern Ontario and a northern one in the tundra on the west coast of Hudson Bay, for the purpose of comparing current and historical loadings of several contaminants. There are no sources of anthropogenic contaminants within either basin, yet both lakes showed increases in polycyclic aromatic hydrocarbon and mercury in more recent sediments as compared with older, deeper sediments. We have interpreted these as indications of increased loadings as a result of atmospheric fallout. When compared on the basis of the sum of sixteen PAHs, both lakes showed peak inputs in the middle years of this century, followed by more recent declines; although current values still exceed those from deep slices. With respect to mercury, the concentrations found in the southern lake were somewhat higher than those in the northern lake, and loadings were clearly greater in the south. Both lakes showed enrichment of mercury in top layers of the cores relative to bottom layers, and this enrichment was proportionately greater in the north. Both mercury profiles showed a slow rate of increase for a long period before 1850, suggesting influences from areas industrialized before North America. The northern lake also showed increases in PAH loadings prior to 1850, but the southern lake did not.

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