Re: Mass Loading values for Children at Playgrounds

["Franz Schoenhofer" <franz.schoenhofer@CHELLO.AT>]

Private:

Franz Schoenhofer

Habicherg. 31/7

A-1160 Vienna, AUSTRIA

Phone: -43 699 11681319

e-mail: franz.schoenhofer@chello.at



Office:

MR Dr. Franz Schoenhofer

Federal Ministry for Agriculture, Forestry, Environment and Water Management

Dep. I/8U, Radiation Protection

Radetzkystr. 2

A-1031 Vienna, AUSTRIA

phone: +43-1-71100-4458

fax: +43-1-7122331

e-mail: franz.schoenhofer@bmu.gv.at







-----Ursprüngliche Nachricht-----

Von: James Weldy <jweldy@cnwra.swri.edu>

An: radsafe@list.vanderbilt.edu <radsafe@list.vanderbilt.edu>

Datum: Mittwoch, 03. Oktober 2001 00:32

Betreff: Mass Loading values for Children at Playgrounds





I am performing a dose assessment which involves a scenario in which the

dirt on the ground at a playground is contaminated. I am looking for a

reference to support a value for the concentration of dust in the air that a

child playing at the playground is exposed. I have not been able to find

anything in my searches to this point. If anyone could point me to an

appropriate reference for this value, I would appreciate it greatly.



-------------------------------------------------------------



I am not too well aware of the situation and the legislation within the USA,

but I try to give you some information, which is to my opinion based on

common sense.



After the Chernobyl-accident Austria was most probably the most affected

country outside of the former Sovjet-Union. The growing season had just

started, everything was contaminated to an extent, which made it necessary,

to ban consumption of fresh vegetables and meat. Later limits for food were

introduced.



During these days, recommendations were issued as to occupancy and other

parameters in order to restrict exposure, but were very soon redrawn,

because there simply was no real radiation hazard.



Now I come to the point. Institutions like the sports university were asked

to have their outdoor facilities checked. This included the sand, which was

used in "jumping", I unfortunatly do not know what this is in English, but

mentioning Bob Beamon and Lewis and 8.something meters might help to

understand.



I received a call from such an institution and they told me that they had

accordingly had the sand checked and it was so and so many nCi/kg. They had

not received any instruction, what was dangerous, what had to be removed and

exchanged. They asked me what to do. I answered, that if this activity

concentration would be present in beef, it would be according to the limits

established, be by far safe to be eaten. I heard a deep sigh of relief and a

cordially "Thank you."



Can't you handle your case similarily?



Franz











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