Day 011 - 12 Jul 94 - Page 44
1 rather than the ODP". It was just whether there was part
of a sentence missing there as in, perhaps, it should read
2 something to say "as a measure of the damage potential of
chemicals towards the ozone layer".
3
MR. JUSTICE BELL: That is what that was meant to say,
4 Professor Duxbury?
A. Yes. I mean, the point is that if you state that
5 something has an ozone depleting potential, it is actually
on the basis of a particular way of modelling the
6 processes of formation and destruction of things in the
atmosphere.
7
Chlorine loading is primarily a way of saying that there
8 is a certain percentage of chlorine which has got to a
certain level of the atmosphere, and to that extent it
9 does not depend upon your assumptions about what or what
has not happened in terms of putting the chlorine there.
10
MR. JUSTICE BELL: Yes, I think the point is one on your
11 grammar really.
12 MISS STEEL: Yes, I am not trying to pick holes but I just want
to make things clearer.
13
MR. JUSTICE BELL: The last thing that SORG is doing is
14 advocating the use of chlorine loading of the tropisphere?
A. No, it certainly is not.
15
Q. It is just as a measure.
16 A. No, it certainly is not.
17 MISS STEEL: Right. The only other one is on page 10 where it
says: "These are formed by the reaction of chlorine atoms
18 with methane of nitrogen dioxide, should that be "or"?
A. Yes, it should be "or" -- that is my inability to use
19 a word processor, I think you could say.
20 MR. JUSTICE BELL: Yes, thank you.
21 MISS STEEL: OK.
22 MR. JUSTICE BELL: What I have said holds for witnesses in the
future.
23
MISS STEEL: Right.
24
MR. JUSTICE BELL: If you have any doubt about it in relation
25 to any witness in the future, then ask.
26 MISS STEEL: OK.
A. Basically, hydrogen chloride comes from methane and
27 chlorine nitrate from nitrogen dioxide.
28 MISS STEEL: Right. I am sorry, I might go a bit slowly
because we have so many notes. Is it right that the term
29 "CFC" is a naming system for chlorofluorocarbons, and
that originally it was an abbreviation for convenience
30 rather than being a true chemical description?
A. It is a name, I think, for convenience but, in fact,
