Suchergebnisse

Front Cover; Advisory Board; Monitoring of Air Pollutants: Sampling, Sample Preparation and Analytical Techniques; Copyright; Contents; Contributors to Volume 70; Series Editor's Preface; Preface; I -- Introduction; 1 -- Perspectives on the Monitoring of Air Pollutants; 1. BACKGROUND TO AIR POLLUTION; 2. POTENTIAL EFFECTS OF AIR POLLUTION; 3. THE IMPORTANCE OF QUALITY CONTROL IN ENVIRONMENTAL ANALYSES; 4. STATISTICAL TOOLS FOR ENVIRONMENTAL MONITORING; 5. THE SCOPE OF THE BOOK; REFERENCES; II -- Sampling Air Pollutants with Associated Sample Preparation Techniques.

Abstract
Semi-volatile organic compounds (SVOCs), partitioned between particulates and vapours of an aerosol, require special attention. The toxicological effects caused by the inhalation of such aerosols may depend on the concentration and in which phase the organic compounds are found. A personal denuder-gas–particle separation aerosol sampler was developed to provide information about the partitioning of aerosols from organic compounds. The sampler was tested in a series of controlled laboratory experiments, which confirmed the capability and accuracy of the sampler to measure gas–particle mixtures. An average difference of 14.8 ± 4.8% was found between sampler and reference laboratory instruments. The obtained results showed that our sampler enables a more accurate measurement of the SVOC aerosols' gas–particle fractionation, compared with that of conventional samplers.