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Transfer factors of radiocesium form drinking water sludge to leaf vegetables
https://repo.qst.go.jp/records/65081
https://repo.qst.go.jp/records/65081306e5f10-6e98-4d4d-b021-15ecdc4a8145
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-07-22 | |||||
| タイトル | ||||||
| タイトル | Transfer factors of radiocesium form drinking water sludge to leaf vegetables | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Ishii, Nobuyoshi
× Ishii, Nobuyoshi× Tagami, Keiko× Kawaguchi, Isao× Uchida, Shigeo× 石井 伸昌× 田上 恵子× 川口 勇生× 内田 滋夫 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Root uptake of radiocesium (137Cs + 134Cs) from drinking water sludge by leaf vegetables and a soil-to-plant transfer factor (TF: Bq/kg-dry of 137Cs in the vegetable/ Bq/kg-dry of 137Cs in the soil) were studied. The sludge was mixed to a garden soil at various volumes, and Japanese Mustard Spinach (Komatsuna) and mini cabbage were gown on these sludge-amended soils. After the harvest of the aerial part, these vegetables and residual soils were dried at 80˚C in a drying oven. Mini cabbage was divided into edible leaf part and core part before drying. The dried vegetables were powdered with a grinder for the analysis of radiocesium. Activities of radiocesium in samples were analyzed using a germanium detector. Radiocesium was detected in all vegetable parts suggesting the root uptake of radiocesium by these vegetables. The concentrations of radiocesium in these vegetables were below 100 Bq per kg of fresh weight, which is the new standard limit for general foods by Japanese guidelines. The concentrations of 137Cs in Komatsuna were 153 Bq/kg-dry and 400 Bq/kg-dry when they were grown in the soil having 1470 Bq/kg-dry and 4060 Bq/kg-dry, respectively. Mini cabbage, which was planted in the soil with the 137Cs concentration of 2122 Bq/kg-dry, contained 202 Bq/kg-dry in 137Cs for the edible leaf part and 155 Bq/kg-dry for the core part. The TFs were 0.10 for Komatsuna and 0.09 for the edible leaf part of the mini cabbage. Komatsuna was planted in soils with different concentrations of radiocesium, but there were no differences in the soil-to-plant transfer factor. These TFs were within the range of the values, which were investigated before the Fukushima Daiichi Nuclear Power plant accident. This work was supported by JSPS KAKENHI Grant Number 24590775. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 7th International Symposium on Radiation Safety and Detection Technology | |||||
| 発表年月日 | ||||||
| 日付 | 2013-07-18 | |||||
| 日付タイプ | Issued | |||||
