Süt ve süt ürünlerinin radyoaktivite konsantrasyonları

Beyaz peynir, peynir altı suyu tozu, süt tozu, labne, kaşar peyniri ve sütün doğal ve yapay radyoaktivite konsantrasyonları gama spektrometrik metot ile belirlendi. Bu amaçla, p-tipi %110 rölatif verimli eş eksenli HPGe dedektör kullanıldı. Beyaz peynir, peynir altı suyu tozu, süt tozu, labne, kaşar peyniri ve sütün 40K ortalama radyoaktivite konsantrasyonları sırasıyla 63.1 ± 7.1, 392.6 ± 40.2, 482.1 ±38.6, 152.0 ±12.1, 48.7 ± 5.8 ve 52.2 ± 4.2 Bq/kg dir. 137Cs radyoaktivite konsantrasyonları MDA altında bulunmuştur. Süt tozu dışında 232Th radyoaktivite konsantrasyonları MDA altında bulunmuştur. Süt tozu 232Th radyoaktivite konsantrasyonu 3.2 ± 0.3 - 9.8 ± 0.8 Bq/kg aralığında bulunmuştur. 226Ra radyoaktivite konsantrasyonları peynir altı suyu tozu için 5.9 ± 0.5 - 8.3 ± 0.7 Bq/kg, süt için 5.1 ± 0.5 – 9.8 ± 0.8 Bq/kg, beyaz peynir için 4.6 ± 0.5 - 9.9 ± 1.9 Bq/kg, süttozu için 3.5 ± 0.3 - 16.0 ± 1.5 Bq/kg, labne için 4.2 ± 0.3 - 11.1 ± 1.0 Bq/kg aralığında bulunmuştur.

Radioactivity concentrations of the milk and dairy products

Natural and artificial radioactivity concentrations of the white cheese, whey powder, milk powder, labaneh, kaskhaval cheese and milk were determined via gamma spectrometric method. For this purpose, p-type 110% relative efficiency coaxial HPGe detector was used. Average 40K radioactivity concentrations of the white cheese, whey powder, milk powder, labaneh, kaskhaval cheese and milk were found to be 63.1 ± 7.1, 392.6 ± 40.2, 482.1 ±38.6, 152.0 ±12.1, 48.7 ± 5.8 and 52.2 ± 4.2 Bq/kg respectively. 137Cs radioactivity concentrations were found to be below MDA. Except the milk powder 232Th radioactivity concentrations were found to be below MDA. 232Th radioactivity concentrations of the milk powder samples were found to be ranged from 3.2 ± 0.3 - 9.8 ± 0.8 Bq/kg. 226Ra radioactivity concentrations were ranged from 5.9 ± 0.5 - 8.3 ± 0.7 Bq/kg for whey powder, 5.1 ± 0.5 – 9.8 ± 0.8 Bq/kg for milk, 4.6 ± 0.5 - 9.9 ± 1.9 Bq/kg for white cheese, 3.5 ± 0.3 - 16.0 ± 1.5 Bq/kg for milk powder, 4.2 ± 0.3 - 11.1 ± 1.0 Bq/kg for labaneh.

Keywords:

Gamma spectrometry, radioactivity concentration, milk dairy products,

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