137CS UPTAKE BY OAT PLANTS AS RELATED TO SOIL FIXING CAPACITY

被引：17

作者：

CUMMINGS, SL

BANKERT, L

GARRETT, AR

REGNIER, JE

机构：

[1] Southeastern Radiological Health Laboratory, National Center for Radiological Health, Public Health Service, U.S. Department of Health, Education, and Welfare, Montgomery, AL

来源：

HEALTH PHYSICS | 1969年 / 17卷 / 01期

关键词：

D O I：

10.1097/00004032-196907000-00016

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Soils can retain 137Cs in a fixed state which is relatively unavailable for plant absorption. This ability is largely attributed to vermiculite or related minerals capable of forming a relatively stable collapsed structure when saturated with Cs+, Rb+, K+, or NH4+ ions. Soils are quite variable in their capacity for fixing cesium. A significant correlation was obtained between the oat uptake of 137Cs and the soil fixing capacity. Oat uptake decreased as the soil fixing capacity increased (y = ax-b). The results suggest that the low fixing capacity of the Florida soils is an important factor giving rise to the higher than average 137Cs concentrations in the milk of Tampa, Florida, area. © 1969 Health Physics Society.

引用

页码：145 / +