Deposition and Soil Solution Ringtest and QA/QC information

Atmospheric deposition and soil solution Working Ringtest programme

Anna KOWALSKA

IBL - Forest Research Institute

3 Braci Lesnej St.

05-090-Raszyn

POLAND

Email: A.Kowalska@ibles.waw.pl

The Atmospheric deposition and soil solution Working Ringtest programme is running every year. The usual schedule is:

Informing the possible participating labs and NFCs (summer of each year - e.g. 2022, 2023, 2024...)
Registration of the participants via internet (autumn of each year - e.g. 2022, 2023, 2024...)
Distribution of the test samples and the invoice (autumn/winter)
Deadline of data submission (winter)
Results (spring)
Re-qualification process finished (spring)
Re-qualification confirmed - successful participation in next ringtest

When a lab did not qualify and did not make efforts to improve the data quality, ICP Forests PCC will send a letter to the National Focal Centre and inform them about the consequence that their data possibly cannot be used for evaluations on an European level.

The ringtest is financed with a participation fee and ringtest sample preparation from participants.

Instructions for ringtest sample preparation

Please, keep in mind that submission of the monitoring results to the PCC database is only possible if your lab participated in the ring test for all submitted parameters. If you want to participate and you need a labcode or/and a password - please, contact Anna Kowalska.

Webinterface for registration and data submisson

Evaluation procedure

Parameters and evaluation limits

Requalification procedure

Status of the Re-qualification of the last test