TNAG-1732-FCO40-2445-Minutes-and-Hansards-of-the-Legislative-Council-of-Hong-Kong-1988 — Page 39

se

5

What

It is our understanding that the question of

the question of radon which

is a fairly recently established source of concern is more

likely to occur in areas where windows are closed. It

occurs more frequently indoors than out of doors; it

builds up. It is an odourless, invisible gas and the

levels inside tend to be higher than outside.

research has been done in temperate parts of the world

suggests that the indoor average is eight times as high as

that outside. And, without any research having been done,

it is believed that it is more likely to build up in the

temperate regions of the world where windows are kept

closed for longer periods

hotter areas of the world.

of time, than those in the

MR. SOHMEN

Sir, I am not sure whether the Financial

Secretary should know what 'sievert' is, but to put it

in context, could he advise the Council what quantum of

sieverts might become

dangerous for the population at

large?

FINANCIAL SE CRE TARY

Sir, I do not

have the answer

immediately,

but I

will

provide a written answer to

Mr. SOHMEN.(See Annex I)