Determination of environmental radioactivity (238U, 232Th and 40K) and indoor natural background radiation level in Chennai city (Tamilnadu State), India

被引：12

作者：

Babai, K. S. ^{[1
]}

Poongothai, S. ^{[2
]}

Punniyakotti, J. ^{[3
]}

机构：

[1] Meenakshi Sundararajan Engn Coll, Chennai 600024, Tamil Nadu, India

[2] Annamalai Univ, Fac Engn & Technol, Annamalainagar 608002, India

[3] Meenakshi Sundararajan Engn Coll, Dept Phys, Chennai 600024, Tamil Nadu, India

来源：

RADIATION PROTECTION DOSIMETRY | 2013年 / 153卷 / 04期

关键词：

NATURALLY-OCCURRING RADIONUCLIDES; SOIL SAMPLES; HIMACHAL-PRADESH; DOSE-RATE; BASE-LINE; AREAS; DISTRICT; KALPAKKAM; SEDIMENT; HAZARDS;

D O I：

10.1093/rpd/ncs121

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An extensive study on the determination of the natural radioactivity (U-238, Th-232 and K-40) levels in soil samples of Chennai city, India has been undertaken and the results of the same are compared with the levels reported in other Indian cities as well as other parts of the world. The radioactivity content in the soil samples, the absorbed dose rate, annual effective dose equivalent, radium equivalent activity, internal and external hazard indices were calculated and compared with UNSCEAR 2000 recommended values. In addition to the above, mapping of indoor natural background gamma radiation levels has been made using thermo luminescent dosemeters throughout Chennai city and the same are reported.

引用

页码：457 / 466

页数：10

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