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2 188 442

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IPC

(21) (22)

Application

99106630/28, 1999-03-30

(24)

Start date

1999-03-30

(22)

Actual filing date

1999-03-30

(45)

Published

2002-08-27

(72)

Inventor

Markelov A.V.Mineeva N.Ja.Sobolev I.A.Dmitriev S.A.

(73)

Holder

Moskovskoe Gosudarstvennoe Predprijatie Ob"Edinennyj Ehkologo-Tekhnologicheskij I Nauchno-Issledovatel'Skij Tsentr Po Obezvrezhivaniju Rao I Okhrane Okruzhajushchej Sredy

PROCEDURE OF RADIATION MONITORING OF ECOLOGICAL SYSTEMS BY MEASUREMENT OF RADIOACTIVITY OF SNOW COVER IN PROCESS OF SNOW SURVEY Russian patent published in 2002 - IPC

Abstract RU 2188442 C2

FIELD: ecological control. SUBSTANCE: procedure includes taking and preparation of samples with subsequent determination of activity of radio nuclides in samples with measurement of density and thickness of snow cover on each section of sample taking. Characteristic feature of procedure lies in taking samples over regular radial sampling network along 8 bearings at equal distances from source of contaminating effluent and on trace of plume grounding and beyond bounds of sanitary-protection zone. Check samples are taken under similar landscape conditions over flat or slightly convex open sections in populated localities in radius up to 10.0 km. Snow samples are thawed and filtered with determination of content of solid suspensions per unit of sample volume and of activity of radio nuclides in filtered snow water of sample. EFFECT: increased efficiency of radiation monitoring with determination of stock of radio nuclides, determination of peculiarities of agglomeration of snow cover by elements of man-made landscape. 5 cl

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RU 2 188 442 C2

Authors

Markelov A.V.

Mineeva N.Ja.

Sobolev I.A.

Dmitriev S.A.

Dates

2002-08-27—Published

1999-03-30—Filed