CELEX: 51986PC0710
Language: en
Date: 1986-12-08
Title: Proposal for a COUNCIL DECISION on a supplement, in respect of mercury originating in sectors other than the chlor-alkali electrolysis industry, to Annex IV to the Convention for the Protection of the Rhine against Chemical Pollution and Commission Communication to the Council on the recommendation by the International Commission for the Protection of the Rhine against Pollution on the monitoring of mercury discharges by sectors other than the chlor-alkali electrolysis industry (submitted to the Council by the Commission)

ARCHIVES HISTORIQUES
DE LA COMMISSION
COLLECTION RELIEE DES
DOCUMENTS "COM"
COM (86) 710
Vol. 1986/0285
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 ---pagebreak---   COMMISSION OF THE EUROPEAN COMMUNITIES
                                                C0MC86) 710 final
                                                Brussels, 8 December 1986
                                 Proposal for a
                               COUNCIL DECISION
on a supplement, in respect of mercury originating in sectors other than the
  chlor-alkali electrolysis industry, to Annex IV to the Convention for the
              Protection of the Rhine against Chemical Pollution
                                       and
                    Commission Communication to the Council
on the recommendation by the International Commission for the Protection of
   the Rhine against Pollution on the monitoring of mercury discharges by
          sectors other than the chlor-alkali electrolysis industry
 C0MC86) 710 final
 ---pagebreak--- SUMMARY
On 25 July 1977 the Council decided to sign the Convention for the Protection
of the Rhine against Chemical Pollution (77/586/EEC).                                 For the purposes of
applying this Convention, the International Commission for the Protection of
the Rhine drafted the following documents in accordance with Articles 3, 4, 5
and 14 of the Convention :
-   a proposal        in te n d e d   as a s u p p l e m e n t  to  Annex I V o f  the    C onvention,     and
- a recommendation on the monitoring of mercury discharges by sectors other
    than the chlor-alkali electrolysis industry.
The p r o p o s a l ,   which      w ill come i n t o      fo rce   a fte r unanimous a c c e p ta n c e by th e
C o n tra ctin g    P a rtie s     to  the C onvention,           and t h e recommendation concern m ercury
d is c h a rg e s in to    the     R hine by s e c t o r s     other   than  the  c h lo r-a lk a li e le c tro ly s is
 in d u stry.
 In practice they are consistent with the provisions of the Directive of 8 March
 1984 on limit values and quality objectives for mercury discharges by sectors
 other than the chlor-alkali electrolysis industry.
 ---pagebreak--- 1. Proposed Council Decision
   EXPLANATORY MEMORANDUM
   1.1. Background
   On 25 July 1977 the Council decided to sign the Convention on the Protection
   of the Rhine against Chemical Pollution and the Additional Agreement to
   the Agreement, signed in Berne on 29 April 1963, concerning the International
   Commission for the Protection of the Rhine against Pollution (77/586/EEC) (1).
   The Convention and the Additional Agreement were signed in Bonn on 3 December
   1976 by the Federal Republic of Germany, the French Republic, the Grand Duchy
   of Luxembourg, the Kingdom of the Netherlands, the Swiss Confederation and
   the European Economic Community, and both entered into force on 1 February 1979.
   The aim of the Convention for the Protection of the Rhine against Chemical
   Pollution (hereinafter referred to as the Convention) is to eliminate or      ,
    reduce pollution of the surface waters of the Rhine basin by dangerous
   substances in the families and groups of substances listed in Annexes I and II
   to the Convention.   Accordingly, it pursues the same objectives and provides
    in numerous instances for the same measures as Council Directive 76/464/EEC of
   4 May 1976 on pollution caused by certain dangerous substances discharged into
    the aquatic environment of the Community (2).
    To become a Contracting Party to the Convention, the Community had to accede
    to the Agreement, signed in Berne on 29 April 1963, concerning the International
    Commission for the Protection of the Rhine against Pollution (hereinafter
    referred to as the International Commission).  To this end, the said Agreement
    was amended by the Additional Agreement of 3 December 1976.
    (1) OJ L 240 of 19.9.1977, p. 35
    (2) OJ L 129 of 18.5.1976, p. 23
 ---pagebreak---                                                                              V
                             - 2 -
Under the Council Decision of 25 July 1977 the Commission represents
the Community on the International Commission for the Protection of
the Rhine against Pollution.
1.2. Ai_m_of _t he_grogosa]1
Articles 5 and 14 of the Convention provide that the International Commission
shall propose to the Contracting Parties limit values for the discharge of
substances appearing in Annex I into the waters of the Rhine.   These proposals
enter into force after unanimous acceptance by the Contracting Parties and
are then included in Annex IV to the Convention. Any proposals thus adopted
have to be notified to the Government of the Swiss Confederation.
This procedure has already been followed for limit values applicable to
mercury discharges from chlor-alkali electrolysis establishments and to
cadmium discharges, giving rise to the Council Decision of 24 June 1982
 (82/460/EEC) (3) on a supplement to Annex IV to the Chemical Pollution
Convention, which was notified to the Government of the Swiss Confederation
on 1 March 1983, and to the Council Decision of 27 June 1985 (85/336/EEC) (4)
concerning a supplement to Annex IV in respect of cadmium.
The International Commission's proposal intended as a supplement on mercury
discharges from other sectors to Annex IV to the Chemical Pollution Convention
was transmitted to the Commission by the Government of the Swiss Confederation
on 16 May 1986 with a view to adoption by the European Economic Community.
The proposal is accompanied by recommendations from the International
 Commission dated 10 July 1985 concerning the application of the proposed
 limit values for mercury discharges.
 (3) 0J L 210 of 19.7.1982, p. 8
 (4) 0J L 175 of 5.7.1985, p. 36
 ---pagebreak--- The International Commission proposes limit values on emission standards
and deadlines applicable to discharges of mercury into the Rhine from
the following sectors :
a) chemical industries using mercury catalysts ;
b) the manufacture of mercury catalysts used in the production of vinyl
    chloride ;
c) the manufacture of other mercury compounds ;
d) the manufacture of primary batteries containing mercury ;
e) the non-ferrous metal industry ;
f) plants for the treatment of toxic wastes containing mercury.
The limit values are expressed in terms of maximum concentration and
maximum quantity except in the case of the last two sectors where only
the maximum concentration is laid down.
1.3. Consistenç^_wi^th_the_measures_taken_at_Çommuni_t^_J.evel^
Represented by the Commission, the Community has taken an active part in
the work of the International Commission, notably within Working Party B
 ('Water supply, hygiene and treatment of waste water'). The consistency
of the proposal from the International Commission with the Community
Directives directly involved is thus assured.
Preparatory work on this proposal ran parallel with Community work leading
to the adoption by the Council of the Directive of 8 March 1984 on limit
values and quality objectives for mercury discharges by other sectors
 (84/156/E EC) <5 ).
Most of the provisions of the proposal in question are identical with those
 laid down in directive 84/156/EEC and are consistent with the Community texts.
 (5) OJ L 74 of 17.3.1984, p. 49
 ---pagebreak---                                - 4 -
Nevertheless, directive 84/156/EEC is more stringent in that it provides
that the Member States shall draw qp specific programmes fqr mercury
discharges by multiple sources which are not industrial plants and for
which the agreed emission standards cannot be applied in practice.
In the International Commission statement accompanying the proposal the only
requirement is that the Contracting Parties shall inform the International
Commission on the measures they have taken or intend to take in this field.
The EEC used the same document to state that the proposal for a less
stringent decision must not prejudice the application of directive 84/156/EEC
by the Contracting Parties who are Member States of the EEC.
1.4. Consultation_of_the_Eurogean_ParIlament
The proposed decision is based on Article 235 of the Treaty under which the
European Parliament must be consulted.   This proposal must be submitted to
the Parliament for opinion.   The Commission feels that the opinion of the
Economic and Social Committee on this proposal should also be requested.
 ---pagebreak---                                                                                             /
                                            Proposal for a
                                           COUNCIL DECISION
                                   on a supplement in respect of
            mercury ori g i n ati n g in sectors other than the chloi—a lka li
          e l e c t r o l y s i s indus try, to Annex IV to the Convention for the
                      Protec tion of the Rhine against Chemical Pollution
THE COUNCIL OF THE EUROPEAN COMMUNITIES,
Having regard to the Treaty e sta b lis h in g the European Economic Community,
and in p a r t i c u l a r A rticle 235 t h e r e o f ,
Having regard to the proposal from the Commission,
Having regard to the opinion of the European Parliament,
Having regard to the opinion of the Economic and Social Committee,
Whereas by Council Decision 77/586/EEC (1)                        the  Community
concluded the Convention for the p rote c tion of the Rhine against Chemical
P o ll u tio n , h e r e in a f te r re fe rre d to as 'The Convention', and the Additional
Agreement to the Agreement signed in Berne on 29 April 1963 concerning the
In te rn a tio n a l Commission for the Protection of the Rhine against P o l l u tio n ,
he r e in af te r re fe rre d to as the ' I n t e r n a t i o n a l Commission' ;
Whereas under A rtic le 5 of the Convention the I n t e r n a t i o n a l Commission proposes
limit values for the discharge of c e r t a i n substances into the surface waters
of the Rhine basin by way of amendments to Annex IV to the Convention; whereas
under Article 14 of the Convention unanimous acceptance by the Contracting
P a r ti e s to the Convention is necessary for the entry into force of these
amendments ;
(1) OJ N° L 240, 19.9.1977, p. 51.
 ---pagebreak--- Whereas, in the form of a proposal designed to supplement Annex IV to
the Convention, the In te r n a tio n a l Commission has est ablished limit values
for mercury discharged by in d u s t r i e s other then the c h lo r - a lk a li e l e c t r o l y s i s
industry ;
Whereas Counci l Directive 84/156/EEC (2) lays down limit values for mercury discharges
by sectors other than the c h l o r - a lk a li e l e c t r o l y s i s industry into the aquatic
environment of the Community; whereas these limit values are i d e n tic a l to those
set out in the proposal of the I n t e r n a tio n a l Commission ;
Whereas A r tic le 4 of tha t Directive requires Member States to draw up s p ec ifi c
 programmes for reduction of mercury discharges by multiple sources which are
not i n d u s t r i a l p l a n t s ; whereas there are no such provisions in the proposal of
 the I n te r n a tio n a l Commission ;
 Whereas i t is d e sir ab l e th a t the Community, as a Contracting Party to the
 Convention,adopt the abovementioned proposal;
 HAS DECIDED AS FOLLOWS :
                                              A r tic le 1
 The proposal from the I n te r n a t i o n a l Commission for the Protec tion of the Rhine
 against pollu ti o n intended to supplement, in respect of mercury o r ig i n ati n g in
  s ectors other than the c h l o r - a l k a l i e l e c t r o l y s i s in d u s tr y , Annex IV to the
 Convention for the Protection of the Rhine against Chemical P o ll u t i o n , is hereby
  adopted on behalf of the European Economic Community.
 The te x t of the proposal is annexed to t h i s Decision.
  (2) OJ N° L 74, 17.3.1984, p. 49.
 ---pagebreak---                            A rtic le 2
This Decision shall be applicable without prejudice to the spec ifi c
provisions in other Community Regulations, p a r t i c u l a r l y A r tic le 4 of
Directive 84/156/EEC.
                           A r tic le 3
The President of the Council s hal l notif y the Government of the Swiss
Confederation, in accordance with the procedures laid down by the Convention,
of the adoption of the proposal re ferred to in A rtic le 1.
                                        Done at
                                        For the Council,
                                        The President
 ---pagebreak---                                                                                                                               XI/247/86 - EN
                                                                PROPOSAL
 from the INTERNATIONAL COMMISSION FOR THE PROTECTION OF THE RHINE AGAINST POLLUTION to supplement Annex IV to the
 Convention on the Protection of the Rhine against Chemical P o l l u tio n , signed in Bonn on 3 December 1976
 The In te rn a tio n a l Commission for the Protection of the Rhine against P oll ution,
 Having regard to the Convention on the Protection of the Rhine against Chemical P o llu tio n , signed in Bonn on 3 December 1
 Having regard in p a r t i c u l a r to A rtic le s 3, 4, 5 and 14 th e r e o f ,
 Having regard to the proposal of 28 June 1979 tabled at Baden in Switzerland and intended to add to Annex IV of the above
 Convention limit values for mercury discharges from c h l o r - a lk a li e l e c t r o l y s i s establishments,
 Proposes to the Contracting P a r t i e s to the Convention that Annex IV to the Convention of 3 December 1976 be supplemented
 as follows in respect of mercury :
Substance              \                           Limit value in terms of         Limit value in terms of       Time limit for
                                                   the maximum concentration       the maximum quantity of       exi sting              Remarks
or group                  Origin
substances                                         of a substance                  a substance                   discharges
                                                                 3                                4                       5                 6
     1                             2
                                                                                                                                    (1 ) , (2 ), (3),
Mercury        1. Chemical in d u s tr ie s
                                                                                           •                                        (4)
                    using mercury
                    c a t a ly s ts
               1.1. For the production         0,05 milligrams of mercury           0,1 grams of mercury           01.07.1989
                       of vvinyl chloride      per l i t r e of waste water         per tonne of vinyl
                                                                                    chloride production
                                                                                    capacity
                                               For ex isting discharges the        For ex isting discharges
                                               provisional limit value of          the provisional limit           01.07.1986
                                               0,1 milligrams of mercury           value of 0,2 grams of
                                               per l i t r e of waste water        mercury per tonne of
                                              ap p lie s.                          vinyl chloride
                                                                                   production capacity
                                                                                   aDDlies
 ---pagebreak---                                                                  - 2 -                                          XI'/247/86” EN
     1                 2                                   3                                   4                      5                     6
Mercury. 1.2 for the manufacture of 0,05 mi lli'grams of mercury          5 grams of mercury per                 01.07.1989          (1), (2), (3),
         other products                  per l i t r e of waste water     Kilogram of mercury Treated                                (4)
                                         For e x ist in g discharges the  Tor e x i s i t i n g discharges the   01.07.1986
                                         provisional limit value of       provisional limit value of
                                         Q,1 milligrams of mercury        10 grams of mercury per
                                         per l i t r e of waste water     kilogram t r e a te d applies
                                         applies
         2. The manufacture of           0,05 milligrams of mercury · 0,7 grams of mercury per                   01.07.1989
            mercury c a t a ly s ts used per l i t r e of waste "water    kilogram of mercury tre a te d
            in the production of
            vinyl chloride
                                         for e x is t in g discharges the For e x ist in g discharges the        01.07.1986
                                         provisional limit value of       provisional limit value of
                                         0,1 milligrams of mercury        1,4 grams of mercury per
                                         per l i t r e of waste water     kilogram of mercury tre a te d
                                         applies                          appli es
         3. The manufacture of           0,05 milligrams of mercury 0,05 grams of mercury per                    01.07.1989
            organic and non-organic per l i t r e of waste water          kilogram of mercury tre a te d
            mercury compounds
             (except the products
            covered by point 2)           For e xisting discharges the For e xisting discharges the              01.07.1986
                                          provisional limit value of       provisional limit value of
                                          0,1 milligrams of mercury        0,1 grams of mercury per
                                          per l i t r e of waste water     kilogram       of mercury tre a te d
                                          applies                          appli es
                                                                                                                        • a aj · · ·
 ---pagebreak---                                                              - 3 -                                         XI/247/86 - EN
                              2                            3                                4                     5                  6
     1
                                         0,05 milligrams of mercury ' .0,03 grams of mercury per             01.07.1989 ( 1 ) , (2 ) , ( 3 ) ,
Mercury 4. Manufacture of primary
            b a t t e r i e s containing per l i t r e of waste water     kilogram of mercury tre a te d                  (4)
            mercury
                                          For e xisting discharges the    For e x is t in g discharges the   01.07.1986
                                         provisional limit value of       provisional limit value of
                                         0,1 milligrams of mercury        0,05 grams of mercury per
                                         vper l i t r e of waste water    kilogram of mercury tre a te d
                                         appli es                         applies
        5. Non-ferrous met'al                                                                                              ( 1 ) , (2 ) , ( 3 ) .
            in d u s trie s                                                                                                ( 4 ) , (5)
«       5.1     Establishments for       0,05 milligrams of mercury                                           01.07.1989
              . the recovery of          per l i t r e of discharge .
                mercury                                                                            t
                                          For e xisting discharges                                            01.07.1986
                                          the provisional limit value
                                         cof 0,1 milligrams per l i t r e
                   1                     of waste water applies
        5.2     Extraction and           ,0,05 milligrams of mercury                                          01.07.1989
                re fi ning of             per l i t r e of waste water
               .non-ferrous metals
                                                                                                              01.07.1986
                                          For e x ist in g discharges the
                                          provisional limit value of
                   i                      0,1 milligrams of mercury
                   S \                    per l i t r e of waste water
                                         appli es
                                                                t
                                                                                                                       ·« ·/···
 ---pagebreak---                                                                         - 4 -                                        XI/247/86 - EN
     1                              2                             3                                4                             5               6
Mercury     6. Establishments for the            0,05 milligrams of mercury                                                01.07.1989 ( 1 ) , ( 2 ) , ( 3 ) ,
               treatment of toxic              . per l i t r e of waste water                                                            (4)
               waste containing
               mercury                            For ex ist ing discharges
                                                  the provisional limit value                                              01.07.1986
                                               ; of 0,1 milligrams of
                                                  mercury per l i t r e of waste
                                                  water applies
I f necessary, limit values for other i n d u s t r i e s , such as paper, stee l and c o a l - f ir e d power s t a t i o n s , will be proposed by
the International Commission at a l a t e r stage.            In hte meantime the governments will fix emission standards for mercury
autonomously in accordance with Articles 3 and 4 of the Convention.                These standards must take account of the best technical
means available and must not be less st ri ngent than the nearest comparable limit value in Annex IV.
Pursuant to A rtic le s 14 and 19 of the Convention, these p riv i s io n s will enter into force a f t e r t h e i r unanimous acceptance
by the Contracting P a r ti e s to the Convention.
The Contracting P a r ti es will n otif y t h e i r adoption to the Government of the Swiss Confederation which will acknowledge
reception of n o t i f i c a t i o n .
 ---pagebreak--- CD The Limit values given in the table represent a monthly average
     concentration or a monthly average load.
     The amounts of mercury discharged are expressed in terms of the
     quan tity of mercury t r e a t e d by a given i n d u s t r i a l establishment during
     the same period or in terms of a p l a n t ' s i n s t a l l e d vinyl chloride
     production capacity.
(2) Limit va lues , expressed in terms of concentra tion, are given in the above
     ta ble for in d u s t r i e s 1 to 4 and should not, in p r i n c i p l e , be exceeded.
     In no case may the limit values expressed in terms of maximum concen­
     t r a t i o n exceed those expressed in terms of maximum quantity divided by
     water requirements per kilogram of mercury t r e a t e d or per tonne of
     i n s t a l l e d vinyl chloride production capacity.          Nevertheless, as the
     concentration of mercury in e f f l u e n t s depends on the volume of water
      involved, and as t h i s d i f f e r s from one process and establishment to the
      next, the limit value s, expressed in terms of the quantity of mercury
      discharged as compared with the quan tity of mercury t r e a t e d or the
      i n s t a l l e d vinyl chloride capacity given in the above t a b l e , must be
      complied with at a l l times.
 (3) The limit values given in the above t a b l e r e f e r to the amount of mercury
      contained in an u n f i l t e r e d sample.  They apply to t o t a l mercury in a l l
      waste water r e s u ltin g from production processes and discharged from the
      s i t e of the production p l a n t .
      Discharges containing mercury s h all be t r e a t e d off the premises of the
      production plant in an establishment designed for eliminating mercury.
      Governments may permit the limit values to apply at the point where the
      discharge leaves the p l a n t .
 ---pagebreak--- (4) Average d a ily limit values s hal l be equivalent to double the
    corresponding average monthly limit values given in the t a b l e .
(5) On the basis of experience gained in applying these provisions
    the I n te r n a tio n a l Commission will submit to the Contracting P a r ti es
    proposals r e l a t i n g to the non-ferrous metals industry and intended
    to lay down more s trin g e n t limit values for entry into force ten years
    a f t e r the adoption of these provisions.
 ---pagebreak---             Commission Communication to the Council on the Recommendation by the
I n te r n a t i o n a l Commission for the Prot ec tion of the Rhine against Pollution
on the monitoring of mercury discharges by s ectors other than the c h lo r - a lk a li
e l e c t r o l y s i s ind ustry.
2. 1. A r tic le s 12 and 13 of the Convention provide that 'The In te r n a tio n a l
          Commission s h all make recommendations, as app ro p ria te , designed gradually
          to improve the implementation of t h i s Convention', and that i t ' s h a l l work
          out recommendations for achieving comparable r e s u l t s by using appropriate
          measuring and analys is measures'.
           In line with these provisions the I n te r n a t i o n a l Commission has drawn up
           recommendations which i t i s tr a n s m ittin g to the Contracting P a r t i e s for
           information.           The recommendations concern discharges of mercury by those
           i n d u s t r i e s covered by the proposal for a Council Decision re ferred to in
           point 1 above.
           The recommendations cover :
            a) The c alc u la tio n of lim it values expressed in terms of the maximum
                 concentration of mercury in waste water ;
            b) a reference anal ysi s method;
            c) sampling and monitoring of discharges ;
            d) the method of c a l c u l a t i n g the q u a n t i t i e s of mercury discharged per
                  month ;
            e) the p o s s i b i l i t y of using a s im plified procedure in c e r t a i n s p ec ifi c
                  cases.
 ---pagebreak---       The recommendations correspond by and Large with the provisions
      set out in the Council Directive of 8 March 1984 on limit values
      and q u a lity obj ectives for mercury discharges by other in d u s t r i e s
      into the aquatic environment (1 ).
2. 2. The Commission requests the Council to take note of t h i s Communication
      which has also been sent to the European Parliament and the Economic
      and Social Committee for information.
2. 3. The text of the recommendations of the I n t e r n a tio n a l Commission, dated
      10 July 1985, is annexed.
 (1) 0J L 74 of 17.3.1984
 ---pagebreak---                                                                 ANNEX I
                            RECOMMENDATI ONS
In Line with i t s proposal made in Basle on 10 July 1985 concerning limit
values for mercury discharges, the I n te rna tiona l Commission for the
Protection of the Rhine against Poll ution hereby makes the following
recommendations to the Contracting P a r ti es to the Convention for the
Protection of the Rhine against Chemical Poll ution in accordance with the
provisions of A rtic le s 12 and 13 of the said Convention :
1. Where the waste water from production is d ilu te d by other waste water,
   the limit value expressed in terms of maximum concentration should be
   divided by the corresponding d i l u t i o n f a c t o r .
2. The limit values laid down in Annex IV for mercury discharges ref er to
   the determination, by the cold vapour method and spectrophotometry, of
   mercury contained in an u n f i l t e r e d sample.
   Other equivalent analysis procedures may by used instead of the above­
   reference method.
3. The competent a u thority will be responsible for monitoring the emission
   standards.        This may be by measurements taken by the au th o rity and/or
   samples taken and analysed by the producer himself.
   The r e s u l t s of these findings and a l l measurements should be kept for at
    least four year s.               *
                                                                                   ✓
   The monitoring of discharges will depend in each case on the specific
    conditions applying to each establishment.                For s u b sta n tia l discharges,
   for example, the following monitoring procedures could be applied :
 ---pagebreak---     a) da ily sampling and analysis of assorted samples taken over 24 hours
        according to the flow ;
    b) sampling ana analysis of 24 assorted samples for one hour or corres ­
        ponding assorted samples for several hours.
4. The quantity of mercury discharged over a month should be cal culated by
    adding up the q u a n t i t i e s of mercury discharged each day during th a t month.
   This sum should then be divided by the weight of mercury t r e a t e d during
   that month in the course of production or cal culated on the basis of the
   vinyl chloride production capacity. I f i t i s impossible to determine the
   quantity of mercury t r e a t e d , the control procedure may be based on the
   quantity of mercury lik e ly to be used for the authorized volume of
   production.
5. A simplified control procedure may be set up for i n d u s t r i a l establishments
   discharging not more than 7.5 kilogrammes of mercury per year.
   This simplified control procedure must include sampling and analysis and,
   i f necessary, measurement of the flow so as to provide a s t a t i s t i c a l l y
   s ig n if ic a n t basis with which to determine whether the emission standards
   have been observed.
                                               (Basle, 10 July 1985)