Community Research and Development Information Service - CORDIS

Abstract

This report discusses an intercomparison exercize between laboratories carrying out acid rain analysis. The chemical results from the study stress the need for strict measurement protocols to improve comparability between different laboratories. Some analytical techniques proved to be inadequate for measuring small samples, for example the use of colorimetric titration in the case of alkalinity and turbidity for sulphate. Outlier values were found in some cases even when the most sophisticated equipment was used, indicating a lack of good laboratory practice. This is particularly evident where low concentrations are used. Differences in the concentrations of anions and cations, and the comparison of measured and calculated conductivity, indicate that some laboratories are still not checking their results using the methods suggested in previous exercizes.

Additional information

Authors: MOSELLO R, Instituto Italiano di Idrobiologica (IT), National Research Council, Verbania Pallanza (IT);BRIZZIO M C, Instituto Italiano di Idrobiologica (IT), National Research Council, Verbania Pallanza (IT);MARCHETTO, Instituto Italiano di Idrobiologica (IT), National Research Council, Verbania Pallanza (IT);TARTARI G A, Instituto Italiano di Idrobiologica (IT), National Research Council, Verbania Pallanza (IT);BIANCHI M, Environment Institute, Joint Research Centre, Ispra (IT);GEISS H, Environment Institute, Joint Research Centre, Ispra (IT);LEYENDECKER W, Environment Institute, Joint Research Centre, Ispra (IT);SERRINI G, Environment Institute, Joint Research Centre, Ispra (IT);SERRRINI LANZA G, Environment Institute, Joint Research Centre, Ispra (IT);MUNTAU H, Environment Institute, Joint Research Centre, Ispra (IT)
Bibliographic Reference: EUR 18135 EN (1998) 65pp.
Availability: Available from CCR Ispra - Servizio Pubblicazioni
Record Number: 199910463 / Last updated on: 1999-03-19
Category: PUBLICATION
Original language: en
Available languages: en