THE ACCUMULATION AND ELIMINATION OF Sr$sup 90$ AND Cs$sup 137$ BY THE CADDIS FLY HALESUS INTERPUNCTATUS ZETT (in Russian)
Larvae of the caddis fly were placed in 5 liters of water which had been contaminated with about 1000 counts/minute of Sr/sup 90/ or Cs/sup 137/. After 3 and 6 hours, 1, 4, and 8 days, a definite number ot the insects were removed from the aquarium. Part of the insects were dried, weighed and counted in order to obtain the amount of Sr/sup 90/ and Cs/sup 137/ accumulated by the organism. The remainder of the insects were placed in clean water for 1, 4 and 114days in order to determine the rate of decontamination. Activity determinations were made on both the cocoon and on the larva. The greatest amount of residual activity is left in both the cocoon and in the larva after an 8-day accumulation of activity as compared to a 3 or 6 hour accumulation of activity. Most of the desorption of activity from the cocoon takes place during the first day. The contamination in the larva is removed more slowly and uniformly. (TTT)
- Research Organization:
- Inst. of Zoology, Academy of Sciences, USSR
- NSA Number:
- NSA-15-028960
- OSTI ID:
- 4843153
- Journal Information:
- Doklady Akad. Nauk S.S.S.R., Journal Name: Doklady Akad. Nauk S.S.S.R. Vol. Vol: 139
- Country of Publication:
- Country unknown/Code not available
- Language:
- Russian
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