1
at Light Vessel "Fehmarnbelt”"
Instructions to the Research Cutter "Friedrich
Heincke” concerning the precautionary taking of wa-
ter samples on the route from the Skagerrak to the
German Bight-
Information from the Federal Minister of Transport
concerning the contaminated ships coming out of the
Baltic Sea.
Commencement of operation of an aerosol collector
for the measurement of the contamination of the air
at Hamburg-Sülldorf.
03.05.1986
First detection of increased air contamination:
beginning air contamination measurements in
Hamburg-Sülldorf, which extended to 12.05.1986.
First Gamma-spectroscopic investigations from wipe
test samples from ships coming out of the Baltic
Sea.
First warning reports from the radiological mea-
surement network station "Borkumriff” at 21.00 hrs.
after the set in of thunder showers: 40 Ba/l.
Commencement of the regular taking of water samples
at the Light Vessels "Borkumriff"” and "Elbe 1”.
04.05.1986
05.05.1986
First warning reports from the measurement station
Light Vessel "Elbe 1” at 01.00 hrs. and 04.00 hrs.
with the set in of rain shower activities.
Monitoring station "Helgoland" indicated slowly rising
measurement values.
Commencement of the regular rainwater sample
investigation, extending until 09.05.1986,
06.05.1986
Monitoring station, Research Platform "Nordsee"
indicated increased measurement values at 06,00 hrs.
Taking of a seaweed sample from the hull of Light
Vessel "Elbe 1”, for the control of the enrichment of
radionuclides.
08.05.1986
Estimation of a maximum radiation burden to ships
due to the results of the irradiation of the ship's
hull from the seawater and the seaweed vegetation,