TNAG-1776-FCO40-2530-Daya-Bay-nuclear-power-station-project-safety-concerns-in-Ho-1988 — Page 119

ཐཱ ན 'P *

I

2

(vi)

(vii)

(viii)

(ix)

The Royal Observatory (RO) is recommended as the

centre to monitor and assess the consequences of

any radiological release from Daya Bay. Factors

influencing this choice are : the RO is manned on a

24 hour basis, has experience in radiation monitoring, and has immediate access to weather

conditions. [Chapter 6, paragraph 6.5, page 32]

Even with very serious accidents, it is unlikely that unacceptable contamination of the water supply system would eventuate. [Chapter 9, paragraph 9.5,

page 60]

The food pathway is likely to be the principal concern following any serious release of

radioactivity from the Daya Bay plant. [Chapter 9,

paragraph 9.6, page 64]

Although stressing that very large (beyond design

basis) accidents are highly improbable, perhaps impossible, with the type of PWR being constructed at Daya Bay, for completeness such hypothetical accidents are considered. Sheltering in certain

circumstances is recommended : the general

distribution of stable iodine tablets is not. The

possibility of 'hot spots', necessitating temporary relocation, is considered so remote that detailed

planning is not justified. [Chapter 9, paragraph

9.7, pages 65-67]

(x) Extremely large accidents sufficient to cause

significant ground contamination are also considered so unlikely that detailed planning and, in particular, the purchase of expensive

specialized decontamination equipment is not

justified.

[Chapter 9, paragraph 9.8, page 68]