The use of passive diffusion tubes for measuring concentrations of nitrogen dioxide in air
Cape, J.N.. 2009 The use of passive diffusion tubes for measuring concentrations of nitrogen dioxide in air. Critical Reviews in Analytical Chemistry, 39 (4). 289-310. 10.1080/10408340903001375Before downloading, please read NORA policies.
CapeN008362PP.pdf - Accepted Version
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Passive diffusion tubes have been widely used in Europe for spatial and temporal measurement of NO2 concentrations. The method is cheap, simple, and provides concentration data in most circumstances that are sufficiently accurate for assessing exposure and compliance with Air Quality criteria. Tube-type diffusion samplers are prone to several sources of uncertainty, arising from the materials of construction, the absorbent used, the methods of preparation, the details of their deployment (including the exposure time) and the analytical methods used to establish the concentration of nitrite ion absorbed. This review considers the major sources of uncertainty, and reports on the many experiments aimed at identifying and minimising uncertainties, including modifications to the simple open tube devices that were originally developed in the 1970s.
|Programmes:||CEH Programmes pre-2009 publications > Biogeochemistry > BG01 Measuring and modelling trace gas, aerosol and carbon|
|Additional Keywords:||Passive sampling, NO2, nitrogen oxides, triethanolamine, Palmes tube|
|NORA Subject Terms:||Atmospheric Sciences
|Date made live:||17 Nov 2009 14:35|
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