Further Study on Fallout 3H Ingestion in Akita, Japan
| Autor: | Masanobu Sakanoue, Shunʼichi Hisamatsu, Yukio Takizawa, Mikio Itoh, Teiʼichi Katsumata, K. Ueno |
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| Rok vydání: | 1989 |
| Předmět: |
Water Pollutants
Radioactive Hydrogen compounds Epidemiology Chemistry Health Toxicology and Mutagenesis digestive oral and skin physiology Mineralogy Tritium Animal science Japan Tap water Free water Ingestion Radiology Nuclear Medicine and imaging Free form Hydrogen concentration Food Contamination Radioactive |
| Zdroj: | Health Physics. 57:565-570 |
| ISSN: | 0017-9078 |
| DOI: | 10.1097/00004032-198910000-00007 |
| Popis: | To study fallout {sup 3}H ingestion in Japan, 16 separate food-group samples were collected from Akita City in northern Japan during early summer and late autumn in 1986. Furthermore, total diet samples which are duplicate composite food samples consumed by five or six persons for a period of 1 d were also obtained in Akita City. The {sup 3}H concentration in free water and that in a tissue-bound form were determined separately. Seasonal changes of {sup 3}H concentration in the food samples and the total diet samples were not found clearly. The average {sup 3}H concentration in the free water including tap water was 1.6 Bq L-1. The mean ratio of specific activity of tissue-bound {sup 3}H to that of {sup 3}H in free water was found to be 1.2. The average total {sup 3}H ingestion was estimated to be 4.0 Bq d-1, while the proportion of tissue-bound form {sup 3}H ingestion to total {sup 3}H ingestion was 11%. Cereal was the greatest contributing food group to ingestion of tissue-bound {sup 3}H. These findings were consistent with our previous results for food samples collected in 1985. |
| Databáze: | OpenAIRE |
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