Radiometric analysis of Hazara phosphate rock and fertilizers in Pakistan

被引：92

作者：

Khan, K

Khan, HM

Tufail, M

Khatibeh, AJAH

Ahmad, N

机构：

[1] Natl. Ctr. of Excellence in Phys. C., Peshawar University, Peshawar

[2] Centre for Nuclear Studies, Islamabad, P.O. Nilore

来源：

JOURNAL OF ENVIRONMENTAL RADIOACTIVITY | 1998年 / 38卷 / 01期

关键词：

D O I：

10.1016/S0265-931X(97)00018-0

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Natural radioactivity due to K-40, Ra-226 and Th-232 has been measured in phosphate rock samples, collected from various localities of Hazara division of Pakistan, and in locally prepared and imported fertilizer, For data acquisition and analysis, a high-purity germanium (HPGe) detector and a PC-based MCA were used. The Ra-226 content was very high and was found to vary from 307.7 Bq kg(-1) to 617.5 Bq kg(-1). This can result in a significant radiation exposure if the rock and fertilizer are handled in places with poor ventilation that could lead to radon accumulation. These data can be used to determine the radioactivity being spread along with fertilizer on agricultural lands. (C) 1997 Elsevier Science Ltd.

引用

页码：77 / 84

页数：8

共 6 条

[1] NATURAL RADIOACTIVITY OF AUSTRALIAN BUILDING-MATERIALS, INDUSTRIAL-WASTES AND BY-PRODUCTS [J].