1. Adoption of the draft
agenda
The draft agenda was
adopted.
2. Adoption of the draft
minutes of the 2nd plenary
meeting of the CSTEE held on
9.02.1998 in Brussels
The minutes were adopted
with the following changes:
(i) The chairperson of
the 'Chrysotile asbestos'
Working Group pointed out that
the text of the opinion annexed
to the draft minutes did not
correspond to the edited (by
the CSTEE chairman) version.
The edited version of the
opinion on 'Chrysotile
asbestos' adopted the 9
February 1998 should be
included instead.
On point 4 of the draft
minutes it was also requested
to delete the reference to the
fact that the chairperson of
the WG, and other CSTEE
members, might have commented
on threshold levels.
(ii) The request was
made to delete, in point 3 of
the minutes, the reference to
the presumed availability of an
interim report by June 98 on
the so-called NL study with
human volunteers as it was
considered that a guarantee of
such availability could not be
obtained. The sentence is to be
replaced by one informing of
the presumed conclusion of the
study by September 1998.
(iii) Other, mainly
editorial corrections, were
suggested.
3. 'Phthalates in toys' -
consideration of the draft
final report for opinion
The CSTEE took account
of the room documents (from
refs. CSTEE/97/1-Adds. 82 to 86
of the list of documents)
distributed just prior to the
start of the meeting. Some
minutes were spent analysing
them.
Among the issues
considered were: (i) what
safety factor to use between
exposure and the NOAEL values
for the respective phthalates;
(ii) relevance of peroxisome
proliferation seen in rats
(extrapolable to man or not);
(iii) which additional safety
factor to use in the absence of
a NOAEL; (iv) how do SCF and
CSTEE conclusions compare.
On (i) several comments
were made on the validity of a
safety factor lower than 100.
One view was that, due to the
lesser relevance of peroxisome
proliferation for humans, a
safety factor of 10 should be
used. Others took the view that
a safety factor of 100 was
warranted. Some suggested that
a safety factor of 50 should be
used as a compromise. This view
had some support but the final
decision was that a safety
factor of 100 should be chosen
but with a clear explanation of
the reasons why in the opinion.
On (ii) it was said that
although it is currently
generally accepted that
peroxisome proliferation should
not be an effect allowing for
an extrapolation to humans, it
was also acknowledged that this
view is not consensual in the
scientific community
(particularly as increases in
liver weight are statistically
significant). It was also said
that the effect should also be
considered in immune cells and
not only in the liver. This
gave some weight to the opinion
of those who thought that such
an effect should not simply be
ignored.
On (iii) an additional
uncertainty factor of 5 was
selected for DBP because of
effects in the offspring,
whereas a factor of 2 was
selected for BBP because of
slight organ weight effects.
On (iv), and with the
presence of a member of the
SCF, it was acknowledged that
the specificity of the effect,
plus the fact that some of the
data on which the CSTEE had
arrived at their conclusions
were more recent than that used
by the SCF, justified that the
former could deviate from the
conclusions of the latter.
Subsequently, and
bearing in mind the information
contained in all the documents
made available, the chairperson
of the 'Phthalates in toys'
working group explained some
important changes which were
introduced into the model of
calculation, i.e. a change from
12 to 6 hours exposure and that
of the weight of the 'model'
child from 5 to 8 Kg. These
changes alter significantly the
assessment. As a result DNOP
came out of the range of
concern (as defined by the
model). The extractable amounts
were calculated using the
modelling techniques (DINP -
1.2mg, DNOP - 3.0mg, DEHP -
0.4mg, DIDP - 2.0mg, BBP -
6.8mg and DBP - 0.8mg) but such
values do not take into account
that children may have
additional phthalate exposure
via other sources.
Going through the
results of the mentioned
calculations the conclusions
were that action is warranted
on DINP because the exposure
levels cause concern. As for
DEHP it was acknowledged that
the low margin of safety could
give rise to concern. However,
due to the nature of its
critical effect (peroxisome
proliferation), the CSTEE
members were less concerned
about exposure to this
phthalate.
No new information was
available on the study being
carried out with human
volunteers in the NL (study
expected to be concluded in the
autumn of 98). The CSTEE
reiterated the view that the
results of this study should be
closely followed and that, in
the light of the respective
results, its opinion on
'Phthalates in toys' could be
revised.
4. Water Framework Directive
- consideration of the draft
report of the working group
with a view to the possible
adoption of a final opinion
The main body of the opinion, particularly parts A and B was generally the object of a consensus. On part C there were few and mostly editorial comments on C1 to qualify the provisions of the directive dealing with pesticides. On C2 (Fish water directive), it was suggested that since comments were broader and applicable to the entire issue they should be moved to the Final Recommendations section. The importance of reference sites was emphasised. Regarding section E (presentation and classification of waters) a discussion on the classification about the different categories of waters also took place. There were only three in the terms of reference but some members suggested there should be five overall (with 'poor' and 'bad'). Others said that all that is possible at present is the classification of waters into 'good' and 'poor' and that a further change from 'bad' into 'fair' and 'bad' can be artificial (but can also contribute to harmonising the situation in M. States).The need for clarification on what the directive is intended to protect, particularly on the distinction between contamination/pollution and contaminant/pollutant, was also commented.
Regarding the procedure
for the selection of priority
substances with a view to
establishing a list of
Community priority substances,
the representative of DG XI
argued that, in their view, a
'monitoring based' selection
process would probably be more
realistic as opposed to the
'modelling based' process
supported by the CSTEE Working
Group. The members of the WG
present gave the reasons why
they thought that a 'modelling
based' approach was preferable
(basically due to the fact that
monitoring is very much
dependent upon the analytical
capabilities of laboratories).
Eventually it was agreed that a
combined approach between the
'monitoring based' and the
'modelling based' selection
process is desirable.
It was also said that
the proposed directive has
uncertainties since it is not
clear what it is intended to
protect. It was suggested that
a clarification is necessary in
the statement on how heavy
metals should be addressed in
the context of priority
chemicals. DG XI has the
intention of treating metals
separately from micro-organic
pollutants. They further
informed the CSTEE that the
ranking will be based on
monitoring results. The
selection of average
concentrations and PNECs used
for the ranking of metals will
be made publicly available and
openly discussed with experts
including the CSTEE.
DG XI also informed that
on 2/3 July 1998 experts of
Member States, Industry and
NGOs, as well as the
chairperson of the CSTEE 'Water
Framework Directive' Working
Group will be invited by DG XI
to a meeting to discuss the
results of the COMMPS
procedure.
The following course of
action was agreed to speed up
the adoption (by written
procedure) of the draft
opinion: (i) by the end of the
following week (30 April),
contributions of CSTEE members
to be sent to the Working
Group; (ii) Working Group to
respond by the 8th of May;
(iii) Working Group to
integrate any subsequent
comments by the 15th of May;
(iv) Working Group meets the
18th of May and concludes final
draft; (v) draft is circulated
for adoption by written
procedure with deadline for
approval set at the 25th of
May.
5. Information on matters
not covered elsewhere in the
agenda:
This point served the
purpose of discussing the role
to be played by the CSTEE on
activities which, given the
CSTEE brief, they should
follow. The issue of
electromagnetic radiation, was
discussed and the creation of a
provisional working group was
decided. Another provisional
working group on risk
assessment was also created.
On the issue of possible
future topics to be looked at
by the CSTEE members were
invited to reflect and propose
new ones for the committee to
address.
It was also decided that
the next CSTEE plenary should
take place over two working
days (possibly one half day and
a full working day). Given that
the date of 15 June had already
been decided for the next
plenary it was decided that the
plenary should take place over
15 and 16 of June in spite of
this being an arrangement not
convenient to everybody.
6. Presentation by DG III of
opinion requests they have put
forward:
(i) Tin, Arsenic and
Cadmium and
(ii) Pentachlorophenol
DG III explained the
context in which these opinion
requests are being submitted to
the CSTEE. Basically they are
the result of the need that the
Commission has of resolving the
problem of the derogations that
Sweden, Finland and Austria
have in their Accession
Treaties. The derogations
cover, among others, Directive
76/769 on restrictions,
marketing and use of Arsenic,
Tin, Cadmium and
Pentachlorophenol for a
transitional period ending 1st
January 1999.
The Commission agreed to
review the legislation in
question within the same
period. It is possible that
these countries may be forced
to lower their standards and
apply the existing directives.
Because of the difficulties
that this would pose, the
review process is ranked very
high politically.
The Accession Treaties
require that the Commission
review the directives in
question by 31st December 1998.
There is no engagement to
change any legislation and all
Member States (new and old) are
required to apply this acquis
(changed or unchanged) from 1st
January 1999. The policy of the
Commission to be followed in
reviewing legislation is set
out in the Communication "An
Industrial Competitiveness
Policy for the European
Chemical Industry". In essence
there are basically three
requirements namely a risk
assessment, a cost benefit
analysis and a comparison with
practice outside the EU.
The risk assessments
have been carried out by
external consultants who have
produced, or are in the process
of finalising, reports on the
risks posed by the chemicals in
question. The CSTEE is being
asked to peer review such
reports on the basis of the
terms of reference submitted to
them by DG III (already
distributed to the CSTEE).
7. Tin, Arsenic and Cadmium
- interim report presented by
the Working Group
chairperson
As two working group
meetings had already taken
place, one on Tin, Arsenic and
Cadmium (16 March 1998) and
another on Pentachlorophenol
(30 March 1998) the chairperson
of the respective working
groups were asked to comment on
any interim conclusions they
might have had to the plenary.
In the Working Group 'Tin,
Arsenic & Cadmium' the
decision had been taken to
appoint a rapporteur per
substance.
Tin - The rapporteur for
this substance had prepared a
draft preliminary report the
main conclusions of which were
that the degree of risk for
both the aquatic environment
and human health reported in
the study of WS Atkins is
sufficiently justified and also
that in spite of the scarcity
of available data and the
budget limitations as well as
the time constraints in the
report, this might,
provisionally, be deemed
appropriate for decision
taking. However the rapporteur
stressed the limitations posed
by the phraseology of the terms
of reference as the scientific
community is not used to making
peer reviews of risk
assessments bearing in mind any
budget limitations.
Arsenic - the rapporteur
for this substance highlighted
the problems he had found with
references. Very few of those
mentioned in the report are
published in standard
scientific journals. Most are
either reports to various
organisations or published in
proceedings of specialised
conferences, both of which are
not easily accessible. He
requested from DG III and/or DG
XXIV (CSTEE Secretariat) that
the documents that are
referenced should be made
available in order to properly
check the data. He subsequently
provided a list of those
thought to be the most relevant
for the peer review of the
document.
Cadmium - due to absence
of the rapporteur for this
particular substance no report
could be made to the working
group.
A meeting of the Working
Group 'Tin, Arsenic &
Cadmium' was scheduled for 29
May 1998.
8. Pentachlorophenol -
interim report presented by the
Working Group chairperson
The chairperson, and
'rapporteur' for this
substance, reported to the
CSTEE some of the interim
conclusions arrived at by the
Working Group. Basically the
emphasis was put on the
shortcomings of the report.
Among those found he mentioned
in particular confusing data
and mistakes in units expressed
in Table 3.3a (mg/kg, µg/kg,
ng/kg) and also lack of
compatibility of data in the
table with that in the
literature review.
Also in chapter 6 (on
Exposure Assessment and
Environment) there are also
aspects which lack clarity with
probable mistakes in expressed
units of tables 6.3a and 6.3b.
The chapter also lacks relevant
PCP exposure data for a proper
risk assessment.
Furthermore it was
mentioned that the report deals
essentially with steady
emissions only, while it is a
known fact that there are
significant accidental releases
of PCP against sapstaining of
timber at outdoor or near
outdoor facilities. Some data
on such occurrences were
reported orally by one of the
WG members.
Finally it was also said
that the report overlooks the
more serious threats to man and
the environment by releases of
noncontained chlorophenol usage
in timber. The characteristics
of biodegradation of higher
chlorinated dioxins/furans may
mean dechlorination into more
toxic substances and hence, in
the long run, the human
exposure to dioxins from PCP
products released into the
environment may rather increase
than decrease regardless of
whether emissions decrease or
even remain stable.
A meeting of the
'Pentachlorophenol' Working
Group was scheduled for 26 May
1998.
9. Strategies for dealing
with additional chemicals
(opinion requests to be
submitted by DG III):
(i) Chrysotile asbestos
A presentation was made by DG III on the developments of the dossier since the last CSTEE plenary meeting. A meeting with M. States took place on the 3rd of March 98 where the opinion of the CSTEE was looked at. Since the CSTEE issued their opinion on this subject DG III have been trying to gather the information which the CSTEE suggested should be made available to fill the gaps in the ERM report. Basically there are still three sets of data which can be made available to the CSTEE: the so-called DE data (a series of studies), the FR data (which is a report from INSERM and is likely to be a very wide ranging report) and the UK data (a study carried out by the Leicester Institute of Environment and Health). It was also said that an epidemiological study from Canada should be forthcoming and would be made available to the CSTEE as soon as possible. The need to wait for the INSERM report was debated. It was suggested that a meeting with experts from INSERM should take place to explore the issue.
DG III presented the new
terms of reference for the
consultation of the CSTEE on
the subject. Given the new
questions asked to the CSTEE
the Working Group chairperson
expressed the view that in
order to find answers to the
questions, a wider
participation and more time
would be needed to address the
problems of substitutes
appropriately. In practice this
should be taken to mean that no
opinion should be expected by
the CSTEE plenary in June.
It was finally agreed to
organise a working group
meeting in Paris (premises
kindly made available by the
INERIS) with the participation
opened to participants from
INSERM, IARC and an expert from
Leicester University. The
Working Group chairperson
suggested a few experts to help
the Working Group in the task
and the CSTEE accepted. The
Secretariat will check
availability of the nominees.
DG III understood the
time constraints but insisted
that it was of the utmost
importance for them to have an
opinion of the CSTEE by its
plenary meeting in September.
(ii) Creosotes
The presentation on this point was made by DG III. The context where the opinion of the CSTEE is being requested on this particular substance stems from the fact that there are in Directive 76/769 provisions on the marketing and use of Creosote, preparations containing Creosote and wood treated with Creosote. The restrictions laid down in Directive 76/769 are based on the fact that Creosote is classified in Directive 67/548 as carcinogenic but that such a classification need not apply below a given concentration (50 ppm) of a marker substance (benzo-[a]-pyrene). Certain M. States were of the opinion that the level of protection of human health laid down in Directive 76/769 was not sufficient and requested that their own, more restrictive, measures be accepted by the Commission, pursuant to Article 100a (4). The Commission requested that studies on the issue be produced by external consultants but such studies were inconclusive. They recommended to wait for the results of a new study carried out by the Fraunhoffer Institute, which should be properly analysed before proceeding with any risk management measures. The study has in the meantime been sent to European Chemicals Bureau in Ispra to allow them to organise the work in view of a possible revision of the classification of the substance under Directive 67/548/EEC.
The CSTEE is being asked
here on whether there is a
cancer risk to consumers from
Creosote containing less than
50 ppm of the marker substance
and/or from wood treated with
such Creosote and the
respective risk magnitude, if
quantifiable.
In terms of timing DG
III can wait for the CSTEE
plenary meeting of September
1998 for an opinion to be
adopted then. A working group
was set up within the CSTEE to
deal with this problem.
(iii) Chlorinated
paraffins
It was acknowledged that
before the CSTEE can look at
these substances one should
consider the risk assessments
produced under the Existing
Substances Regulation and what
DG XI will do about it.
(iv) Azo dyes - The
urgency of this subject is
similar to that of Creosotes. A
provisional working group was
set up to deal with this
subject when terms of reference
are sent by DG III. The working
group should meet before the
summer break with a view to
having an opinion adopted in
September.
10. Role of the CSTEE in the
entry of chemicals under
Directive 76/769
The main subjects of
discussion on this particular
point had taken place already
in looking at the priorities of
DG III to be submitted to the
CSTEE (see above point 9).
Generally the issues addressed
under this directive have to do
with the fact that harmonised
restrictions on the marketing
and use of dangerous substances
and preparations require risk
assessments and cost-benefit
analyses. The process of
introducing new restrictions is
mostly triggered by a
notification of national
provisions under Directive
83/189. Following the need to
react within a limited time, DG
III is using independent
consultants to carry out
targeted risk assessments.
Taking the time constraint into
account as well as the
committee's limited resources,
the CSTEE agreed that an
appropriate role for it is to
check the scientific quality of
the independent studies
(peer-review).
In order to be able to
meet the strict deadlines, the
CSTEE wished to have a regular
update on the issues in the
pipeline in the framework of
limitations on marketing and
use. A report from DG III/C/4
every three months was agreed.
11. Endocrine disrupters -
presentation by the Working
Group chairperson of status
report
The WG chairperson
presented the outline of the
draft report to be developed by
the Working Group and adopted
by the CSTEE. It includes the
following chapters:
(i)Introduction; (ii) Endocrine
disrupting chemicals (EDCs) and
human health; (iii) EDCs and
ecological health; (iv)
Ecotoxicology test protocols,
and (v) Conclusion.
The CSTEE agreed in
general with this approach. It
was suggested that a section on
prioritisation of chemicals
should be included and this was
accepted.
The content of each of
the chapters was discussed. On
the Introductory chapter a
definition of what an endocrine
disrupter is was considered
necessary as this expression is
still being used in a rather
loose way.
In the chapter on human
health the issue of declining
of human semen quality is going
to be covered as well as
reproductive organ disorders,
in particular testicular
cancer.
The chapter on
ecological health,
presentations of case studies
will help with the
characterisation of the effects
in the biota. The aquatic and
terrestrial environments will
be covered and a comparison
between the situation in the EU
and the USA will be made.
Regarding the
ecotoxicolgy test protocols a
special attention will be
devoted to highlighting what is
missing in the field of
ecotoxicology tests for
detecting EDC's. The logic
corollary will be that
recommendations for the
adoption of guidelines with
validated new test methods will
be proposed.
The date of 15 May was
scheduled for a meeting of the
Working Group 'Endocrine
disrupters'.
12. 'Scientific basis for
the hazard and risk assessment
of chemical substances for the
terrestrial environment' -
discussion
It was agreed to revisit
this agenda point at the
occasion of the next CSTEE
plenary as there was no time
available for discussing it.
13. Arrangements for the
next meeting of the CSTEE
Comments made as
reflected in point 5 were
restated given the growing
number of opinion requests
being submitted to the CSTEE
and the obvious need of more
time to discuss them in a
proper manner (next plenary to
take place over two working
days). Given that the date
previously chosen had been the
15th of June 1998, the decision
to prolong it into the 16th of
June 1998 was taken, in spite
of the fact that at least two
members could not make it into
the second day.
14. Any other business
Without any, the meeting
was closed at 6 p.m.
Annexes:
I - List of participants
II- Meeting agenda
LIST OF PARTICIPANTS
CSTEE:
Prof. Bridges, Prof.
Dybing, Prof.Greim, Prof.
Jansson, Prof. Kyrtopoulos, Dr.
Ladefoged, Dr. Lambré, Prof.
Rueff, Prof. Salkinoja-Salonen,
Dr. Tarazona, Prof. Terracini,
Prof. Vighi, Prof. Vos, Prof.
Wennig
SCF:
Prof. Knaap
External expert:
Prof. P. Calow
Apologies:
Prof. Chambers
European Commission:
DG XXIV
Mrs de Solà, Mrs Brunko,
Mr Costa-David, Mrs Gámez
Moreno, Mrs Decamps, Mr
M.-Magone
DG III
Mr Berend, Mr Burge, Mr
Glynn, Mr Soro, Mr Rossi
DG XI
Mr Aichinger, Mr
Brockett, Mrs Fidalgo, Mr
Olsen, Mr Paquot
DG XII
Mr Nolan
Stagiaire:
Mrs Fischer
AGENDA -
1. Adoption of the draft
agenda
2. Adoption of the draft
minutes of the 2nd plenary
meeting of the CSTEE held on
09.02.98 in Brussels
3. Phthalates in toys -
consideration of the draft
final report (for opinion)
4. Water Framework
Directive:
(i)Practical
implications of the proposed
modification to the Water
Framework Directive
(Annex V), and (ii)Procedure
for selection of priority
substances with a view to the
establishing of a list of
Community priority substances -
consideration of the draft
report with a view to the
possible adoption of a final
opinion
5. Information on
matters not covered elsewhere
in the agenda:
(i) Update by the CSTEE
chairman on the latest meetings
of the Scientific Steering
Committee
(ii) Discussion on the
brief of the CSTEE
(iii) Schedule of CSTEE
meetings for 1998
6. Presentation by DG
III of opinion requests they
have put forward:
(i) Tin, Arsenic and
Cadmium
(ii) Pentachlorophenol
7. Tin, Arsenic and
Cadmium - interim report
presented by the Working Group
chairperson
8. Pentachlorophenol -
interim report presented by the
Working Group chairperson
9. Strategies for
dealing with additional
chemicals (opinion requests to
be submitted by DG III):
(i) Chrysotile asbestos
(ii) Creosotes
(iii) Chlorinated
paraffins
(iv) Azo dyes
(v) Other
10. Role of the CSTEE in
the entry of chemicals under
Directive 76/769
11. Endocrine disrupters
- presentation by the Working
Group chairperson of status
report
12. 'Scientific basis
for the hazard and risk
assessment of chemical
substances for the terrestrial
environment' - discussion
13. Arrangements for the
next meeting of the CSTEE
14. Any other
business