… coordination of quality assurance activities for the measurements of the compounds regulated by EU Directive 2008/50 on ambient air quality and cleaner air for Europe. … gas chromatographs”, applied exclusively for measurement of synthetic test gases, e.g. in interlaboratory comparisons or test gases in cylinders. Monitoring of … disseminate national standards for air quality monitoring activities pursuant to EU regulations and thus ensure the metrological traceability of air quality data. These …

… Ozone Ozone is a colourless and toxic gas, and one of the most important trace gases in the atmosphere. The natural ozone layer which occurs in the atmosphere at … ozone … Ozone is a colourless and toxic gas, and one of the most important trace gases in the atmosphere. The natural ozone layer which occurs in the atmosphere at …

… is one of the main principles of German environmental law. It is expressly regulated in article 34 (1) of the Unification Treaty as a self-imposed commitment … principle as a legal provision in environmental law by means of various regulations, rendered it specific and implemented it as an instrument. It has at the …