dorsal/arxiv
View SchemaRadiostrontium activity concentrations in milk in the Republic of Croatia for 1961 - 2001 and dose assessment
| Authors | Z. Franic, N. Lokobauer, G. Marovic |
|---|---|
| Categories | |
| ArXiv ID | physics/0406054 |
| URL | https://arxiv.org/abs/physics/0406054 |
| Journal | Health Physics. 87(2):160-65, 2004. Aug |
Abstract
Results of systematic measurements of Sr-90 activity concentrations in milk for the period 1961 - 2001 are summarized. An exponential decline of radioactivity followed the moratorium on atmospheric nuclear testing. The highest activity of Sr-90 deposited by fallout, being 1060 Bq/m2, was recorded in 1963, while the peak Sr-90 activity concentration in milk, 1.42 +/-0.17 Bq/L, was recorded in 1964. The values in year 2001 for fallout deposition and milk were 7.7 Bq/m2 and 0.07 +/- 0.03 Bq/L, respectively. The reactor accident at Chernobyl caused higher Sr-90 levels only in 1986. Sr-90 fallout activity affects milk activity, the coefficient of correlation between Sr-90 fallout activity and Sr-90 activity concentrations in milk being 0.80. The transfer coefficient from fallout deposition to milk was estimated to be 2.5 mBqy/L per Bq/m2. The dose incurred by milk consumption was estimated for the Croatian population, the annual collective effective dose in 2001 being approximately 2.0 man-Sv.
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"abstract": "Results of systematic measurements of Sr-90 activity concentrations in milk\nfor the period 1961 - 2001 are summarized. An exponential decline of\nradioactivity followed the moratorium on atmospheric nuclear testing. The\nhighest activity of Sr-90 deposited by fallout, being 1060 Bq/m2, was recorded\nin 1963, while the peak Sr-90 activity concentration in milk, 1.42 +/-0.17\nBq/L, was recorded in 1964. The values in year 2001 for fallout deposition and\nmilk were 7.7 Bq/m2 and 0.07 +/- 0.03 Bq/L, respectively. The reactor accident\nat Chernobyl caused higher Sr-90 levels only in 1986. Sr-90 fallout activity\naffects milk activity, the coefficient of correlation between Sr-90 fallout\nactivity and Sr-90 activity concentrations in milk being 0.80. The transfer\ncoefficient from fallout deposition to milk was estimated to be 2.5 mBqy/L per\nBq/m2. The dose incurred by milk consumption was estimated for the Croatian\npopulation, the annual collective effective dose in 2001 being approximately\n2.0 man-Sv.",
"arxiv_id": "physics/0406054",
"authors": [
"Z. Franic",
"N. Lokobauer",
"G. Marovic"
],
"categories": [
"physics.med-ph"
],
"journal_ref": "Health Physics. 87(2):160-65, 2004. Aug",
"title": "Radiostrontium activity concentrations in milk in the Republic of Croatia for 1961 - 2001 and dose assessment",
"url": "https://arxiv.org/abs/physics/0406054"
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