Welcome to ICP Forests

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

The International Co-operative Programme on Assessment and Monitoring of Air Pollution Effects on Forests (ICP Forests) was launched in 1985 under the Convention on Long-range Transboundary Air Pollution (Air Convention, formerly CLRTAP) of the United Nations Economic Commission for Europe (UNECE).

ICP Forests monitors forest condition at two monitoring intensity levels:

The Level I monitoring is based on 5852 observation plots (as at 2019) on a systematic transnational grid of 16 x 16 km throughout Europe and beyond to gain insight into the geographic and temporal variations in forest condition.

The Level II intensive monitoring comprises 623 plots (as at 2018) in selected forest ecosystems with the aim to clarify cause-effect relationships.

At present 42 countries in Europe and beyond participate in ICP Forests.

Blog Posts

ICP Forests 2021 Technical Report now available online

We are happy to inform you that the ICP Forests 2021 Technical Report is now available online and can be downloaded from the ICP Forests website.

Printed copies will be available soon.

With best wishes
Alexa Michel
on behalf of the Programme Co-ordinating Centre of ICP Forests

Posted by Alexa Michel on November 16, 2021 at 14:19 — 1 Comment

Healthy air, healthy planet: UNEP's 2nd International Day of Clean Air for Blue Skies

With the International Day of Clean Air for Blue Skies on 7 September, the United Nations Environment Programme issues for the second time a global call for action toward a single, unifying objective: clean air for all.

This year, the focus is on the need for healthy air for the well-being of all, while incorporating other critical issues such as climate change, human and planetary health, and the Sustainable Development Goals into the discussion.

#WorldCleanAirDay #HealthyAirHealthyPlanet 

Posted by Alexa Michel on September 6, 2021 at 11:00

11th Deposition and soil solution Working Ring Test 2021/2022

The Polish Forest Research Institute invites all laboratories that perform deposition and soil solution analyses in ICP Forests to participate in the 11th Working Ring Test in order to assess the quality of the deposition and soil solution data collected in the ICP Forests programme on the Intensive Monitoring of Forest Ecosystems (EC-UN/ECE ICP Forests). The registration deadline is 30th September 2021.

All necessary information are available in the document below. If you have any questions, do not hesitate to contact Anna Kowalska ( from the Polish Forest Research Institute.


Posted by Alfred FÜRST on August 31, 2021 at 13:30

ICP Forests Brief No 3 available in Serbian language

The ICP Forests Brief No 3 titled Ozone concentrations are decreasing but exposure remains high in European forests is now available in Serbian: Концентрације озона се смањују али је изложеност и даље висока у шумама Европе

Please note that ICP Forests Briefs can be translated into any language. If you are interested in making them available in your language, please let us know.

Posted by Alexa Michel on April 15, 2021 at 12:44


Soil spectroscopy

Dear colleagues,as topicality is rising on application of soil spectroscopy for routine analysis by utilizing own created or shared spectral libraries, I am interested if someone could share their knowledge on instrumentation choice? Could someone…Continue

Started by Aldis Butlers Dec 19, 2019.

Choosing brands for some instruments 1 Reply

Dear colleagues,It is planned to purchase a new mill, Kjeldahl Steam Distillation System for N analysis and combined system to analyze pH, EC and alkalinity for water samples for my lab. 1. There are two mills in our lab. One of them is Retsch ZM200…Continue

Started by Rabia GUNHAN. Last reply by Robert Menegotto Apr 30, 2018.


© 2021   Created by ICP-Forests Admin.   Powered by

Banners  |  Report an Issue  |  Privacy Policy  |  Terms of Service