# Commission Regulation (EC) No 1737/2006 of 7 November 2006 laying down detailed rules for the implementation of Regulation (EC) No 2152/2003 of the European Parliament and of the Council concerning monitoring of forests and environmental interactions in the Community, Division II.8: Chemical analysis

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

Mandatory and optional parameters to be analysed on bulk deposition, throughfall, stemflow and fog samples are provided for in the following table:
DOC = dissolved organic carbon, and N total = total nitrogen.
Sample type
Mandatory
Optional
Bulk deposition, throughfall, stemflow
Amount of precipitation
pH and conductivity at 25 °C
Na, K, Mg, Ca, NH4
Al, Mn, Fe, and other heavy metals, e.g. Cu, Zn, Hg, Pb, Cd, Co, Mo
Cl, NO3 SO4
P total, PO4
Total alkalinity
Mandatory for individual samples if pH > 5
DOC, Ntotal
(N total is not mandatory for bulk deposition, but is highly recommended)
S total, HCO3
HCO3 can either be obtained by calculation (from pH, total alkalinity, temperature and ionic strength) or by direct measurement
Fog,
frozen fog
(rime)
pH, conductivity
Na, K, Mg, Ca, NH4
Cl, NO3, SO4, P total
Alkalinity
Al, Mn, Fe, and other heavy metals, e.g. Cu, Zn, Hg, Pb, Cd, Co, Mo

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Source: https://www.legislation.gov.uk/eur/2006/1737/annex/I/chapter/5/division/II/division/II.8 (the official version)
Page: https://openlegislation.uk/eu-regulation-2006-1737/annex-I/chapter-5/division-II/division-II.8
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.