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naturlige baggrundsniveauer
natural background levels

bilag vi: beregning af baggrundsniveauer for naturlige forstyrrelser
annex vi: calculation of background levels for natural disturbances

for naturligt forekommende stoffers vedkommende, de observerede baggrundsniveauer
in the case of naturally-occurring substances, the observed background levels,

i begge situationer vil det være nødvendigt at fastsætte baggrundsniveauer ud fra kvalificerede faglige skøn.
it is necessary to ensure here that the monitoring points are comparable.

det er nødvendigt at forholde sig til spørgsmålet om, hvorfor disse baggrundsniveauer i det hele taget findes.
now that, with enlargement, the baltic sea is to become even more obviously an inland sea of the union, a comprehensive plan should be drawn up to protect salmon stocks and organise fishing activity.

for metaller modificeres kravet til overholdelse på den måde, at medlemsstaterne kan tage højde for baggrundsniveauer og biotilgængelighed.
for metals, the compliance regime is adapted by allowing member states to take background levels and bioavailability into account.

disse metoder kan anvendes til at bekræfte resultater fra screeningsmetoder og til at bestemme lave baggrundsniveauer i forbindelse med overvågningen af foder.
these methods can be used for confirmation of results obtained by screening methods and for determination of low background levels in feed monitoring.

kommissionen kan også acceptere andre ændringsforslag, herunder ændringsforslag 38 og 39, der vedrører baggrundsniveauer og en særlig tendensvurdering for punktforureningskilder.
as regards preventing and limiting discharges to groundwater, the commission is in a position to accept in principle the majority of the clarifications proposed in amendments 19, 20, 43 and 48.

baggrundsniveauer for retikulin i knoglemarven hos itp- patienter samt den observerede incidens af og mulige virkningsmekanisme for retikulinaflejring som følge af behandling med romiplostim.
background rates of reticulin in the bone marrow in itp patients and the observed incidence and potential mechanism

grænseværdierne for benzo(a)pyren er derfor blevet tilpasset for at afspejle mere realistiske baggrundsniveauer i ferske og røgede toskallede bløddyr.
benzo(a)pyrene maximum levels have therefore been adapted to reflect more realistic lower background levels in fresh and smoked bivalve molluscs.

i nødvendigt omfang: også visse for­stadsstationer, som ikke placeres i vindretningen fra området med de største emissioner, til bestemmelse af de regionale baggrundsniveauer for ozon.
where appropriate, some suburban stations also upwind of the area of maximum emissions, in order to determine the regional background levels of ozone.

2.2 henstiller, at hvor der ikke er kendte baggrundsniveauer i grundvandet for naturligt forekommende stoffer, fastsættes baggrundsniveauer efter bedste faglige skøn, indtil overvågningsdata er tilvejebragt.
2.2 recommends that where the background levels of naturally occurring substances in groundwater are not known, background levels should be laid down in accordance with the best professional opinion until monitoring data is produced.

hver enkelt grundvandsforekomst, der karakteriseres som truet, navnlig forekomsternes størrelse, forholdet mellem grundvandsforekomsterne og det tilknyttede overfladevand og direkte afhængige terrestriske økosystemer og, for naturligt forekommende stoffers vedkommende, de naturlige baggrundsniveauer i grundvandsforekomsterne
information on each of the bodies of groundwater characterised as being at risk, in particular the size of the bodies, the relationship between the bodies of groundwater and the associated surface waters and directly dependent terrestrial ecosystems, and, in the case of naturally-occurring substances, the natural background levels in the bodies of groundwater;

2.2 forholdet mellem tærskelværdierne og, for 2.2 forholdet mellem tærskelværdierne og, for naturligt forekommende stoffer, de observerede naturligt forekommende stoffer, de observerede baggrundsniveauer. baggrundsniveauer.
in some cases the background level will not be known until after a long period of monitoring - for some groups of groundwater bodies it may also be difficult to find bodies where the natural background level can be measured.

baggrundsniveau
background level