FIELD: chemistry.
SUBSTANCE: method involves collection of initial plankton samples from the water body under investigation, and preparation thereof, said samples containing hydrobionts-bioindicators of radioactive contamination. The resultant samples of said hydrobionts are prepared and analysed, followed by evaluation of the radiation condition of the water body under investigation. The hydrobionts-bioindicators of radioactive contamination of the water body used are sea zooplanktons of the Chaetognath type. One initial plankton sample containing said hydrobionts is collected at any arbitrary or directed given point of the offshore zone under investigation with salinity not lower than 8%. One resultant sample of said hydrobionts is then prepared by collecting from the initial sample not less than 5 zooids of sea zooplanktons of the Chaetognath type. Analysis of the resultant samples of said hydrobionts is carried out through visual examination of outer morphological features which characterise the state of the skin and fins of each separately taken zooid from among those collected. The radiation condition of the investigated offshore zone is carried out by detecting presence or absence from the resultant sample zooids of said hydrobionts, having anomality of said outer morphological features. If the resultant sample has at least one zooid, having damaged skin and/or broken fins, the offshore zone under investigation has radioactive contamination.
EFFECT: simple and shorter method, reduced expenses on implementing the method.
9 cl, 2 ex
