distribution of radionuclides in the water column during the entire period after
the ChNPP accident taking into account the new data about the above-mentioned
distribution
137
Cs in the deep layers of sea.
– to make the forecast of the time of the decreasing till levels of concentrations of
artificial radionuclides
90 Sr и
137 Cs in the balance components, abiotic and biotic
components of the Black Sea ecosystem, which were in them before the ChNPP
accident,
– to get the new data about the speed of the self-purification of coastal and deepwater areas of the Black Sea from
90 Sr and
137 Cs radionuclides after the ChNPP
accident.
17.2 Materials and Methods
17.2.1 Analysis of Sample Sites and Samples
In this investigation the results of the radioanalytical measurements obtained by us
with the usage of standard methods in the framework of the radiation monitoring
1986–2016 years were applied (Polikarpov et al. 2008), as well as the data on the
vertical distribution of
90 Sr and
137 Cs in the water column of the Black Sea deepwater zone, obtained in 2013 and 2015 years (Gulin et al. 2015) were used. Material
for investigations was taken during the sea trips (Polikarpov et al. 2008) on
scientific research vessels (SRV) of the Institute of Biology of the Southern Seas
(IBSS) NAS of Ukraine (now it is Institute of Marine Biological Research AS of
Russia (IMBR)) such as “Professor Vodyanitskiy” (including the material from its
88 cruise in September 2016) and “Academician Kovalevskiy”, as well as in coastal
areas on small vessels during the shore expeditions, (Fig. 17.1).
To determine the concentrations of
90 Sr and
137 Cs after the ChNPP accident the
following indicator species of hydrobionts were selected. The main object of study
among the Black Sea mollusks was the Mytilus galloprovincialis (Lam.), among the
seaweed it was brown algae Cystoseira crinita (Duby).
17.2.2 Sampling
The sampling of surface water (volume 20–2000 l) was realized with using pumps
“Azovets”, “Malish” and with using the deck’s turbine pump. The “Sartorius”
Peristaltic Pumps, vacuum pumps and turbine pump “Flotec-F360-5 ACMP”
were used for filtration of sea water samples and sorption of contaminants or
suspended matter. Water samples from various horizons were taken with using
the bathometers of the Niskin system (10 and 20 l volumes), the 140 l Bodmen
bathometer, as well as cassettes of bathometers STD probe “Istok-3” (6 Â 10 l),
17 Radionuclides
137
Cs and
90
Sr in Components of the Black Sea Ecosystems. . .
277
the ChNPP accident taking into account the new data about the above-mentioned
distribution
137
Cs in the deep layers of sea.
– to make the forecast of the time of the decreasing till levels of concentrations of
artificial radionuclides
90 Sr и
137 Cs in the balance components, abiotic and biotic
components of the Black Sea ecosystem, which were in them before the ChNPP
accident,
– to get the new data about the speed of the self-purification of coastal and deepwater areas of the Black Sea from
90 Sr and
137 Cs radionuclides after the ChNPP
accident.
17.2 Materials and Methods
17.2.1 Analysis of Sample Sites and Samples
In this investigation the results of the radioanalytical measurements obtained by us
with the usage of standard methods in the framework of the radiation monitoring
1986–2016 years were applied (Polikarpov et al. 2008), as well as the data on the
vertical distribution of
90 Sr and
137 Cs in the water column of the Black Sea deepwater zone, obtained in 2013 and 2015 years (Gulin et al. 2015) were used. Material
for investigations was taken during the sea trips (Polikarpov et al. 2008) on
scientific research vessels (SRV) of the Institute of Biology of the Southern Seas
(IBSS) NAS of Ukraine (now it is Institute of Marine Biological Research AS of
Russia (IMBR)) such as “Professor Vodyanitskiy” (including the material from its
88 cruise in September 2016) and “Academician Kovalevskiy”, as well as in coastal
areas on small vessels during the shore expeditions, (Fig. 17.1).
To determine the concentrations of
90 Sr and
137 Cs after the ChNPP accident the
following indicator species of hydrobionts were selected. The main object of study
among the Black Sea mollusks was the Mytilus galloprovincialis (Lam.), among the
seaweed it was brown algae Cystoseira crinita (Duby).
17.2.2 Sampling
The sampling of surface water (volume 20–2000 l) was realized with using pumps
“Azovets”, “Malish” and with using the deck’s turbine pump. The “Sartorius”
Peristaltic Pumps, vacuum pumps and turbine pump “Flotec-F360-5 ACMP”
were used for filtration of sea water samples and sorption of contaminants or
suspended matter. Water samples from various horizons were taken with using
the bathometers of the Niskin system (10 and 20 l volumes), the 140 l Bodmen
bathometer, as well as cassettes of bathometers STD probe “Istok-3” (6 Â 10 l),
17 Radionuclides
137
Cs and
90
Sr in Components of the Black Sea Ecosystems. . .
277