Biological effectiveness of environmental radiation in aquatic systems, measurements by T7-phage sensor

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4 Citations (Scopus)

Abstract

Bacteriophage T7 as a biologic sensor was used for systematic underwater UV measurements at the freshwater lake Gyekenyes, Hungary. Time evolution of the biologically effective doses, cumulated daily doses and daily dose-profiles have been measured. Measurements were undertaken not only in different water depths but also just above the water surface (15 cm height) and also on the beach. The exponential attenuation of daily doses in water has been confirmed. Although the values of H(T7) above the water's surface and on the beach were similar, the dose rates were very different between the two sides of the water surface, i.e. just under it (at 5 cm depth) and above it (at 15 cm height). Their ratio has been found to be dependent on the zenith angle with a maximum of not more than 0.5, and at higher zenith angles it is about 0.3.

Original languageEnglish
Pages (from-to)183-187
Number of pages5
JournalJournal of Photochemistry and Photobiology, B: Biology
Volume32
Issue number3
DOIs
Publication statusPublished - Feb 1996

Fingerprint

Bacteriophage T7
Bacteriophages
bacteriophages
Radiation
dosage
surface water
Water
sensors
Sensors
radiation
beaches
zenith
Beaches
water
Hungary
water depth
Lakes
Fresh Water
lakes
attenuation

Keywords

  • Biologically effective UV dose
  • Entering ratio of radiation
  • Time-evolution of biologically effective dose
  • Underwater daily profile
  • Underwater UV dose

ASJC Scopus subject areas

  • Plant Science
  • Bioengineering
  • Physical and Theoretical Chemistry

Cite this

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title = "Biological effectiveness of environmental radiation in aquatic systems, measurements by T7-phage sensor",
abstract = "Bacteriophage T7 as a biologic sensor was used for systematic underwater UV measurements at the freshwater lake Gyekenyes, Hungary. Time evolution of the biologically effective doses, cumulated daily doses and daily dose-profiles have been measured. Measurements were undertaken not only in different water depths but also just above the water surface (15 cm height) and also on the beach. The exponential attenuation of daily doses in water has been confirmed. Although the values of H(T7) above the water's surface and on the beach were similar, the dose rates were very different between the two sides of the water surface, i.e. just under it (at 5 cm depth) and above it (at 15 cm height). Their ratio has been found to be dependent on the zenith angle with a maximum of not more than 0.5, and at higher zenith angles it is about 0.3.",
keywords = "Biologically effective UV dose, Entering ratio of radiation, Time-evolution of biologically effective dose, Underwater daily profile, Underwater UV dose",
author = "S. G{\'a}sp{\'a}r and A. B{\'e}rces and G. Ront{\'o} and P. Gr{\'o}f",
year = "1996",
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TY - JOUR

T1 - Biological effectiveness of environmental radiation in aquatic systems, measurements by T7-phage sensor

AU - Gáspár, S.

AU - Bérces, A.

AU - Rontó, G.

AU - Gróf, P.

PY - 1996/2

Y1 - 1996/2

N2 - Bacteriophage T7 as a biologic sensor was used for systematic underwater UV measurements at the freshwater lake Gyekenyes, Hungary. Time evolution of the biologically effective doses, cumulated daily doses and daily dose-profiles have been measured. Measurements were undertaken not only in different water depths but also just above the water surface (15 cm height) and also on the beach. The exponential attenuation of daily doses in water has been confirmed. Although the values of H(T7) above the water's surface and on the beach were similar, the dose rates were very different between the two sides of the water surface, i.e. just under it (at 5 cm depth) and above it (at 15 cm height). Their ratio has been found to be dependent on the zenith angle with a maximum of not more than 0.5, and at higher zenith angles it is about 0.3.

AB - Bacteriophage T7 as a biologic sensor was used for systematic underwater UV measurements at the freshwater lake Gyekenyes, Hungary. Time evolution of the biologically effective doses, cumulated daily doses and daily dose-profiles have been measured. Measurements were undertaken not only in different water depths but also just above the water surface (15 cm height) and also on the beach. The exponential attenuation of daily doses in water has been confirmed. Although the values of H(T7) above the water's surface and on the beach were similar, the dose rates were very different between the two sides of the water surface, i.e. just under it (at 5 cm depth) and above it (at 15 cm height). Their ratio has been found to be dependent on the zenith angle with a maximum of not more than 0.5, and at higher zenith angles it is about 0.3.

KW - Biologically effective UV dose

KW - Entering ratio of radiation

KW - Time-evolution of biologically effective dose

KW - Underwater daily profile

KW - Underwater UV dose

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