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Titolo:
RADIOACTIVE CONTAMINATION OF THE TECHA RIVER IN THE URALS
Autore:
TRAPEZNIKOV AV; POZOLOTINA VN; CHEBOTINA MY; CHUKANOV VN; TRAPEZNIKOVA VN; KULIKOV NV; NIELSEN SP; AARKROG A;
Indirizzi:
RUSSIAN ACAD SCI,INST PLANT & ANIM ECOL SVERDLOVSK RUSSIA
Titolo Testata:
Russian journal of ecology
fascicolo: 5, volume: 24, anno: 1993,
pagine: 336 - 341
SICI:
1067-4136(1993)24:5<336:RCOTTR>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
NO
Recensione:
Indirizzi per estratti:
Citazione:
A.V. Trapeznikov et al., "RADIOACTIVE CONTAMINATION OF THE TECHA RIVER IN THE URALS", Russian journal of ecology, 24(5), 1993, pp. 336-341

Abstract

In the 1950's, the Techa River was contaminated with highly radioactive waste from the ''Mayak'' nuclear enterprise. The total discharge ofradionuclides into the river is estimated as 10(17) Bq, including as much as 10(16) Bq each of Sr-90 and Cs-137. At present, the river's water and soils contain about 0.3 . 10(12) Bq of Sr-90, more than 6 . 10(12) of Cs-137, and about 8.10(8) Bq of Pu-239, Pu-240. The estimate was made for the part of the river beginning 50 km from the site of thedischarge and ending 240 m downstream, before the Techa River emptiesinto the Iset River. The greater part of the discharged radionuclideshas been deposited in a series of reservoirs in the upper reaches of the Techa. The concentration of radionuclides in the water and soils of the Techa River decreases exponentially or according to an exponential function with distance.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 28/11/20 alle ore 09:46:54