Radiological Study on Soils, Foodstuff and Fertilizers in the Alexandria Region, Egypt

Ibrahim H. SALEH

doi:https://doi.org/10.3906/tar-1201-1

Makale detayları

Radiological Study on Soils, Foodstuff and Fertilizers in the Alexandria Region, Egypt

Yazarlar:

Ibrahim H. SALEH

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2007 Vol.31 Issue 1, pp.9-17

Belge Tipi:

Makale

Yayın Tarihi:

12/2006

Belge Dili:

İngilizce

Document ID (Org No.):

2000744952

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

DOI:

https://doi.org/10.3906/tar-1201-1

Özet:

 

Radionuclides 226Ra, 232Th, 40K and 137Cs were  measured in foodstuffs (vegetables, fruits, seeds, cereals, meats, and  milks), soil, and agricultural chemical fertilizers (phosphate and  urea) using a high-resolution gamma ray spectrometer.  The gamma Dose  Rate Conversion Factors (DRCFs) for the radionuclides present in the  surface layer of the investigated soil were developed based on the  local soil conditions and the updated nuclear properties of  radionuclides.  Good agreement between the calculated DRCFs and those  in the literature was found.  The annual external and internal  effective dose rates from soil and food were deduced.  The annual  average of the external effective dose rate was 195.28 m Sv.  The  daily intake of radionuclides from food consumption reveals that  vegetables are the biggest contributors, while meat is the lowest.   The annual internal effective dose rates were 61.32 m nd 146.54 m  Sv for 226Ra and 40K, respectively.  The levels of radionuclides  in phosphate and urea fertilizers frequently applied to the  agricultural soil of the study area indicated that the highest levels  of 226Ra and 232Th were in super-phosphate and the lowest in  urea.  Finally, the transfer of radionuclides from soil to plants was  discussed.

 

Radionuclides 226Ra, 232Th, 40K and 137Cs were  measured in foodstuffs (vegetables, fruits, seeds, cereals, meats, and  milks), soil, and agricultural chemical fertilizers (phosphate and  urea) using a high-resolution gamma ray spectrometer.  The gamma Dose  Rate Conversion Factors (DRCFs) for the radionuclides present in the  surface layer of the investigated soil were developed based on the  local soil conditions and the updated nuclear properties of  radionuclides.  Good agreement between the calculated DRCFs and those  in the literature was found.  The annual external and internal  effective dose rates from soil and food were deduced.  The annual  average of the external effective dose rate was 195.28 m Sv.  The  daily intake of radionuclides from food consumption reveals that  vegetables are the biggest contributors, while meat is the lowest.   The annual internal effective dose rates were 61.32 m nd 146.54 m  Sv for 226Ra and 40K, respectively.  The levels of radionuclides  in phosphate and urea fertilizers frequently applied to the  agricultural soil of the study area indicated that the highest levels  of 226Ra and 232Th were in super-phosphate and the lowest in  urea.  Finally, the transfer of radionuclides from soil to plants was  discussed.

Makale detayları

Radiological Study on Soils, Foodstuff and Fertilizers in the Alexandria Region, Egypt

Yazarlar: Ibrahim H. SALEH

Yayıncı: TUBITAK

Ana Başlıklar: Uygulamalı fizik

Dergi: Turkish Journal of Engineering and Environmental Sciences 2007 Vol.31 Issue 1, pp.9-17

Belge Tipi: Makale

Yayın Tarihi: 12/2006

Belge Dili: İngilizce

Document ID (Org No.): 2000744952

Sıklık: Üç Yıllık

eISSN: 1303-6157

pISSN: 1300-0160

DOI: https://doi.org/10.3906/tar-1201-1

Sayı

Yazarlar:

Ibrahim H. SALEH

Yayıncı:

TUBITAK

Ana Başlıklar:

Uygulamalı fizik

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2007 Vol.31 Issue 1, pp.9-17

Belge Tipi:

Makale

Yayın Tarihi:

12/2006

Belge Dili:

İngilizce

Document ID (Org No.):

2000744952

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

DOI:

https://doi.org/10.3906/tar-1201-1