Search Legislation

Council Directive of 30 October 1979 on the quality required of shellfish waters (79/923/EEC) (repealed)

 Help about what version

What Version

 Help about advanced features

Advanced Features

 Help about UK-EU Regulation

Legislation originating from the EU

When the UK left the EU, legislation.gov.uk published EU legislation that had been published by the EU up to IP completion day (31 December 2020 11.00 p.m.). On legislation.gov.uk, these items of legislation are kept up-to-date with any amendments made by the UK since then.

Close

This item of legislation originated from the EU

Legislation.gov.uk publishes the UK version. EUR-Lex publishes the EU version. The EU Exit Web Archive holds a snapshot of EUR-Lex’s version from IP completion day (31 December 2020 11.00 p.m.).

Status:

EU Directives are published on this site to aid cross referencing from UK legislation. Since IP completion day (31 December 2020 11.00 p.m.) no amendments have been applied to this version.

ANNEXU.K.QUALITY OF SHELLFISH WATERS

a

However, pending the adoption of a Directive on the protection of consumers of shellfish products, it is essential that this value be observed in waters in which live shellfish directly edible by man.

Abbreviations:
G

=

guide

I

=

mandatory

ParameterGIReference methods of analysisMinimum sampling and measuring frequency
1.

pH

pH unit

7 — 9

Electrometry

Measured in situ at the time of sampling

Quarterly
2.Temperature oCA discharge affecting shellfish waters must not cause the temperature of the waters to exceed by more than 2 oC the temperature of waters not so affected

Thermometry

Measured in situ at the time of sampling

Quarterly
3.Coloration (after filtration) mg Pt/l [X1A discharge affecting shellfish waters must not cause the colour of the waters after filtration to deviate by more than 100 mg Pt/l from the colour of waters not so affected]

Filter through a 0·45 µm membrane

Photometric method, using the platinum/cobalt scale

Quarterly
4.Suspended solids mg/lA discharge affecting shellfish waters must not cause the suspended solid content of the waters to exceed by more than 30 % the content of waters not so affected
  • Filtration through a 0·45 µm membrane, drying at 105 oC and weighing

  • Centrifuging (for at least five minutes, with mean acceleration 2 800 to 3 200 g), drying at 105 oC and weighing

Quarterly
5.Salinity ‰12 to 38 ‰
  • ≤ 40 ‰

  • Discharge affecting shellfish waters must not cause their salinity to exceed by more than 10 % the salinity of waters not so affected

ConductimetryMonthly
6.

Dissolved oxygen

Saturation %

≥ 80 %
  • ≥ 70 % (average value)

  • Should an individual measurement indicate a value lower than 70 %, measurements shall be repeated

  • An individual measurement may not indicate a value of less than 60 % unless there are no harmful consequences for the development of shellfish colonies

  • Winkler's method

  • Electrochemical method

Monthly, with a minimum of one sample representative of low oxygen conditions on the day of sampling. However, where major daily variations are suspected, a minimum of two samples in one day shall be taken
7.Petroleum hydrocarbons

Hydrocarbons must not be present in the shellfish water in such quantities as to:

  • produce a visible film on the surface of the water and/or a deposit on the shellfish,

  • have harmful effects on the shellfish

Visual examinationQuarterly
8.Organohalogenated substancesThe concentration of each substance in shellfish flesh must be so limited that it contributes, in accordance with Article 1, to the high quality of shellfish productsThe concentration of each substance in the shellfish water or in shellfish flesh must not reach or exceed a level which has harmful effects on the shellfish and larvaeGas chromatograpny after extraction with suitable solvents and purificationHalf-yearly
9.

Metals

SilverAg
ArsenicAs
CadmiumCd
ChromiumCr
CopperCu
MercuryHg
NickelNi
LeadPb
ZincZn

mg/l

The concentration of each substance in shellfish flesh must be so limited that it contributes in accordance with Article 1, to the high quality of shellfish products

The concentration of each substance in the shellfish water or in the shellfish flesh must not exceed a level which gives rise to harmful effects on the shellfish and their larvae

The synergic effects of these metals must be taken into consideration

Spectrometry of atomic absorption preceded, where appropriate, by concentration and/or extractionHalf-yearly
10.

Faecal

coliforms/100 ml

≤ 300 in the shellfish flesh and intervalvular liquidaMethod of dilution with fermentation in liquid substrates in at least three tubes in three dilutions. Subculturing of the positive tubes on a confirmation medium. Count according to MPN (most probable number). Incubation temperature 44 oC ± 0·5 oCQuarterly
11.Substances affecting the taste of the shellfishConcentration lower than that liable to impair the taste of the shellfishExamination of the shellfish by tasting where the presence of one of these substances is presumed
12.

Saxitoxin

(produced by dinoflagellates)

Back to top

Options/Help

Print Options

Close

Legislation is available in different versions:

Latest Available (revised):The latest available updated version of the legislation incorporating changes made by subsequent legislation and applied by our editorial team. Changes we have not yet applied to the text, can be found in the ‘Changes to Legislation’ area.

Original (As adopted by EU): The original version of the legislation as it stood when it was first adopted in the EU. No changes have been applied to the text.

Point in Time: This becomes available after navigating to view revised legislation as it stood at a certain point in time via Advanced Features > Show Timeline of Changes or via a point in time advanced search.

Close

See additional information alongside the content

Geographical Extent: Indicates the geographical area that this provision applies to. For further information see ‘Frequently Asked Questions’.

Show Timeline of Changes: See how this legislation has or could change over time. Turning this feature on will show extra navigation options to go to these specific points in time. Return to the latest available version by using the controls above in the What Version box.

Close

Opening Options

Different options to open legislation in order to view more content on screen at once

Close

More Resources

Access essential accompanying documents and information for this legislation item from this tab. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as adopted version that was used for the EU Official Journal
  • lists of changes made by and/or affecting this legislation item
  • all formats of all associated documents
  • correction slips
  • links to related legislation and further information resources
Close

Timeline of Changes

This timeline shows the different versions taken from EUR-Lex before exit day and during the implementation period as well as any subsequent versions created after the implementation period as a result of changes made by UK legislation.

The dates for the EU versions are taken from the document dates on EUR-Lex and may not always coincide with when the changes came into force for the document.

For any versions created after the implementation period as a result of changes made by UK legislation the date will coincide with the earliest date on which the change (e.g an insertion, a repeal or a substitution) that was applied came into force. For further information see our guide to revised legislation on Understanding Legislation.

Close

More Resources

Use this menu to access essential accompanying documents and information for this legislation item. Dependent on the legislation item being viewed this may include:

  • the original print PDF of the as adopted version that was used for the print copy
  • correction slips

Click 'View More' or select 'More Resources' tab for additional information including:

  • lists of changes made by and/or affecting this legislation item
  • confers power and blanket amendment details
  • all formats of all associated documents
  • links to related legislation and further information resources