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  • Electronic Resource  (2)
  • 1980-1984  (1)
  • 1975-1979  (1)
  • 1970-1974
  • 1983  (1)
  • 1978  (1)
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  • Electronic Resource  (2)
Years
  • 1980-1984  (1)
  • 1975-1979  (1)
  • 1970-1974
Year
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Water, air & soil pollution 9 (1978), S. 199-206 
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The concentration of medically used radionuclides has been studied in sludge from the sewage treatment plant serving the borough of Malmo. In this area all nuclear medicine procedures are carried out in one hospital and almost all patients live in the borough. Therefore, the input of medically used radionuclides into the sewage system can be estimated with good accuracy. Samples of digested sludge have been taken once or twice a week during half a year. Iodine-131 (physical half life (T) = R.05 d) was detected in all samples. The 131I-activity concentration due to medical use varied between (0.03±0.01) and (0.12±0.02) nCi kg−1. The ratio between the total output of 131I via the sludge and an adherent input of the radionuclide into the sewage system was determined to (2.6 ± 0.6) × 10−3, which is equivalent to a ratio of (2 ± 1) × 10−2 for stable I. Occasionally measurable activities of 198Au (T=2.7 d) and 201T1(T=3.l d) have been found. The radioactivity concentration of medically used radionuclides in the sludge is low and constitutes no health problems for the persons involved. The sludge however has proved to be a very sensitive and suitable integrator of radioactive material released from a large urban area.
    Type of Medium: Electronic Resource
    Library Location Call Number Volume/Issue/Year Availability
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Water, air & soil pollution 20 (1983), S. 331-346 
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The presence of activation products in the environment released to the air from a nuclear power station has been studied in sewage sludge and ground level air. The measured time variation of the 60,Co concentration in sludge and ground level air was found to be in good agreement with the reported variation in release rate to the air from the power station when the prevalent wind direction is taken into account. The ratio between the 7,Be normalized concentration in sludge and ground level air was studied and was found to be about 1 for radionuclides due to global fallout but less than 2 · 10−3, for 60,Co. Our conclusion is that 60,Co spreads from a local source (a nuclear power station) and to a considerable degree is dry deposited on the ground and then washed off by rain.
    Type of Medium: Electronic Resource
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