Welcome to ICP Forests

– the International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests operating under the UNECE Convention on Long-range Transboundary Air Pollution (CLRTAP) –

A programme aiming at a comprehensive compilation of information on the condition of forests in Europe and beyond

ICP Forests was launched in 1985 under the Convention on Long-range Transboundary Air Pollution (CLRTAP) of the United Nations Economic Commission for Europe (UNECE) in response to wide public and political concern over extensive forest damage that had been observed in Europe in the beginning of the 1980s. ICP Forests monitors forest condition in Europe at two monitoring intensity levels: The Level I monitoring is based on around 6000 observation plots on a systematic transnational grid of 16 x 16 km throughout Europe to gain insight into the geographic and temporal variations in forest condition while the Level II intensive monitoring comprises around 500 plots in selected forest ecosystems with the aim to clarify cause-effect relationships. At present 42 countries participate in ICP Forests.

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Blog Posts

5th ICP Forests Scientific Conference - Book of Abstracts now available online

With the 5th ICP Forests Scientific Conference in Luxembourg on May 11-12, 2016 approaching soon, I am happy to announce that the Book of Abstracts is now available online.

With best wishes
Alexa Michel

Posted by Alexa Michel on May 2, 2016 at 14:52

30 Years Anniversary Report of ICP Forests available online

Dear members and friends of the ICP Forests website community,

We are happy to inform you about the online publication of the

30 Years Anniversary Report of ICP Forests

You can download the report from the ICP Forests website

With best wishes
Alexa Michel, Programme Co-ordinating Centre of ICP Forests

Posted by Alexa Michel on April 6, 2016 at 10:48

Registration for the 5th Scientific Conference and 32nd Task Force Meeting of ICP Forests is now open!

We cordially invite you to register now for the 5th Scientific Conference and 32nd Task Force Meeting of ICP Forests at and benefit from early-bird registration rates until April 15, 2016.

Please keep in mind that the deadline for abstract submission is already on February 28, 2016.

For more information, please visit the following pages:

5th Scientific Conference of ICP Forests…


Posted by Alexa Michel on January 14, 2016 at 14:07

18th Needle/Leaf Interlaboratory Comparison Test 2015/16 - Results

Dear colleagues,

the results of the 18th Needle/Leaf Interlaboratory Comparison Test are available on the FFCC homepage. The qualification reports can be downloaded from the ringtest web-interface. You had to login here with your lab code and your password. The following ICP-Forests laboratories (=laboratories analysing monitoring samples from the vegetation period 2015) had to re-qualify for some parameters:

A59: C
A62: P, Ca, Mg, K, Mn, Fe
F12: Pb
F13: C
F24: Mg
F27: K
F33: Fe, Pb, B…

Posted by Alfred FÜRST on January 8, 2016 at 13:38


Upcoming workshop: Environmental change and forest ectomycorrhizal fungi. 8-9 October 2015

Dear all,I would like to announce that we will organise a workshop on 8-9 October 2015 at the Royal Botanic Gardens Kew in London, with the topic environmental change and forest ectomycorrhizal…Continue

Started by Sietse van der linde Mar 30, 2015.

Soil Sample Laboratory Test 1 Reply

I would like to know about Soil Sample Laboratory Test, are we going to have it in 2014 year. Best regards, Radovan Nevenic, NFC Serbia.Continue

Started by Radovan Nevenic. Last reply by Nathalie Cools May 7, 2014.


Latest Activity

Profile IconNuno Ricardo Gracinhas Nunes Gui and Marlies Volckaert joined ICP Forests
Walter Seidling posted an event

Task Force Meeting of ICP Forests at Bucharest

May 15, 2017 to May 19, 2017
The Task Force Meeting is the topmost Meeting of ICP Forests. This is an advance notice and more detailed Information will follow.Invitation by Romania: icp.pdf%20invitatia%20MMAP.pdfSee More
Profile Iconsteenackers Marijke and Sara Lukic joined ICP Forests
Jan-Peter George is now a member of ICP Forests
Jun 16
Profile IconJavier Valenciano and Angela Schlutow joined ICP Forests
Jun 9
Radek Novotný posted an event

EuMIXFOR Final Conference at Conference hall of hotel DAP***

October 5, 2016 to October 7, 2016
Integrating Scientific Knowledge in Mixed Forests.EuMIXFOR Final Conference, COST Action FP 1206See More
Jun 8
Walter Seidling joined Marcus Schaub's group

Ozone visible symptoms

The group focuses on the evaluation of tropospheric ozone effects in terms of ozone visible symptoms (see ICP Forests Manual part VIII). We aim at investigating temporal and spatial trends of injury occurrence in relation to ambient ozone concentrations. The analyses of Level II data from the last 10 years data are embedded in a broader evaluation and publication concept on ozone risk assessment across Europe. For…See More
Jun 8
Anu Akujaervi is now a member of ICP Forests
Jun 7

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