## Access

You are not currently logged in.

Access JSTOR through your library or other institution:

# Interrelations between Plutonium and Some Transition Elements in Gulf of Bothnian Sediments

Per Östlund
Ambio
Vol. 20, No. 1 (Feb., 1991), pp. 38-42
Stable URL: http://www.jstor.org/stable/4313769
Page Count: 5
Preview not available

## Abstract

The lateral distributions of plutonium and other metals of natural and anthropogenic origin were studied in recent sediments from the Gulf of Bothnia. Nonparametric rank and multivariate factor analysis indicate that the distribution of Pu is governed by runoff processes and by the deposition of metals and organic matter in deposition basins. Plutonium is probably adsorbed onto or complexed with organic matter in the sediments. Plutonium is interrelated with Mn, As, Mo, Pb, Cd and Fe from both natural sources and industrial emissions. Ni, Co, V, and Cu followed another distribution pattern, probably due to conservative mixing in the water column and due to the absence of local sources. Activity rations for ${}^{238}{\rm Pu}/{}^{239,240}{\rm Pu}$ suggest that atmospheric fallout is the sole source.

• 38
• 39
• 40
• 41
• 42