Activity of ²²⁶Ra, ²³²Th and ⁴⁰K in riverine environs and evaluation of radiological hazards
by Y. Narayana, K.M. Rajashekara, K. Siddappa
International Journal of Low Radiation (IJLR), Vol. 4, No. 3, 2007

Abstract: This paper discusses the results of systematic measurement of activity concentrations of ²²⁶Ra, ²³²Th and ⁴⁰K in riverine samples of river Sharavathi, one of the major rivers of coastal Karnataka in India. Activity concentrations of ²²⁶Ra, ²³²Th and ⁴⁰K in soil, sediment and rock were measured by Na(I) Tl gamma-ray spectrometry. To assess the radiological hazards of the natural radioactivity in the samples, absorbed gamma-dose rates in air, radium equivalent activity, representative level index, external hazard index and internal hazard index values associated with the radionuclides were calculated and compared with the international recommended values. The representative level index (I_gr) values are high in soil and sediment samples. The external hazard index (H_ex) and internal hazard index (H_in) values are low in rock samples of the Sharavathi River.

Online publication date: Tue, 20-Nov-2007

The full text of this article is only available to individual subscribers or to users at subscribing institutions.

 
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.

Pay per view:
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.

Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Low Radiation (IJLR):
Login with your Inderscience username and password:

Username:        Password:          Forgotten your password?

Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.

If you still need assistance, please email subs@inderscience.com