Move to improve contaminated soil analyses

A scheme to improve the accuracy of contaminated soil analyses has been launched by the Laboratory of the Government Chemist (LGC). The "proficiency testing" project will be welcomed by customers who face large variations in results even between quality controlled laboratories.

Contaminated soil analysis is a relatively recent phenomenon compared with water and air pollution testing. Reflecting this, the National Measurement Accreditation Service (NAMAS), which accredits the quality control procedures of laboratories for various tests, has over 30 laboratories accredited for water analyses and five for some air pollution tests.

However, only one laboratory is accredited for analysis of soil contaminants. But app

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