Pushpa Publishing House

Journal Menu

Content

Volume 2 (2009)

	Volume 2, Issue 3 Pg 157 - 202 (November 2009)
	Volume 2, Issue 2 Pg 67 - 156 (July 2009)
	Volume 2, Issue 1 Pg 1 - 65 (March 2009)

Volume 1 (2007)

-->

Far East Journal of Ocean Research

suggesting that the pool of ²¹⁰Po and ²³⁴Th adsorbed on phytoplankton and POC was controlled by the concentrations of phytoplankton and POC. The distribution coefficients

of ²¹⁰Po for POC were significantly higher than those of ²³⁴Th

Therefore, the affinity of ²¹⁰Po for POC appeared greater than that of ²³⁴Th. We suggest that POC and organisms such as phytoplankton played an important role in controlling the scavenging of ²¹⁰Po and ²³⁴Th in this region of the ocean.

Far East Journal of Ocean Research
Volume 2, Issue 2, Pages 67 - 82 (July 2009)

SCAVENGING OF ²¹⁰Po AND ²³⁴Th BY PARTICULATE ORGANIC CARBON IN THE SURFACE LAYER OF THE NORTHWESTERN NORTH PACIFIC OCEAN
Hajime Kawakami (Japan)

Abstract:
We investigated the distributions of ²¹⁰Po and ²³⁴Th in the surface layer of the northwestern North Pacific Ocean . The activities of the two radioisotopes adsorbed on particulate organic carbon (POC) and the concentrations of chlorophyll a and POC followed a significant logarithmic relationship

suggesting that the pool of ²¹⁰Po and ²³⁴Th adsorbed on phytoplankton and POC was controlled by the concentrations of phytoplankton and POC. The distribution coefficients

of ²¹⁰Po for POC were significantly higher than those of ²³⁴Th

Keywords and phrases: polonium-210, thorium-234, scavenging, particulate organic carbon, distribution coefficient, northwestern North Pacific.

Communicated by Hyo Choi

Number of Downloads: 262 | Number of Views: 377