# Commission Decision (EU) 2018/229 of 12 February 2018 establishing, pursuant to Directive 2000/60/EC of the European Parliament and of the Council, the values of the Member State monitoring system classifications as a result of the intercalibration exercise and repealing Commission Decision 2013/480/EU (notified under document C(2018) 696) (Text with EEA relevance), Division: NORTHERN LAKES GEOGRAPHICAL INTERCALIBRATION GROUP RESULTS Biological Quality Element Macrophytes and Phytobenthos Sub-Biological Quality Element Macrophytes

Extent: E+W+S+N.I.

Description of types that have been intercalibrated
Type
Lake characterisation
Alkalinity (meq/l)
Color(mg Pt/l)
L-N-M 101
Low alkalinity, clear
0,05 — 0,2
< 30
L-N-M 102
Low alkalinity, humic
0,05 — 0,2
> 30
L-N-M 201
Moderate alkalinity, clear
0,2 — 1,0
< 30
L-N-M 202
Moderate alkalinity, humic
0,2 — 1,0
> 30
L-N-M 301a
High alkalinity, clear, atlantic subtype
> 1,0
< 30
L-N-M 302a
High alkalinity, humic, atlantic subtype
> 1,0
> 30
Types 101, 102, 201 and 202: Ireland, Finland, Norway, Sweden, United Kingdom.
Type 301a: Ireland, United Kingdom.
Type 302a: Ireland, United Kingdom
Will be used in England, Wales and Scotland
Will be used also in the UK (North Ireland)
Country
National classificationmethods intercalibrated
Ecological Quality Ratios
High-good boundary
Good-moderate
Finland
Finnish macrophyte classification system (Finnmac)
0,8 (all types)
0,6 (all types)
Ireland
Free Macrophyte Index
0,9 (all types)
0,68 (all types)
Norway
National macrophyte index (Trophic Index — TIc)
Type 101: 0,98
Type 102: 0,96
Type 201: 0,95
Type 202: 0,99
Type 101: 0,87
Type 102: 0,87
Type 201: 0,75
Type 202: 0,77
Sweden
Trophic Macrophyte Index (TMI)
Type 101: 0,93
Type 102: 0,93
Type 201: 0,89
Type 202: 0,91
Type 101: 0,8
Type 102: 0,83
Type 201: 0,78
Type 202: 0,78
UK
Lake LEAFPACS 2
0,8 (all types)
0,66 (all types)
UK
Free Macrophyte Index
0,9 (all types)
0,68 (all types)

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Source: https://www.legislation.gov.uk/eudn/2018/229/annex/division/1/division/12/division/2 (the official version)
Page: https://openlegislation.uk/eu-decision-2018-229/annex/division-1/division-12/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.