Passive air sampling theory for semivolatile organic compounds

Bartkow, Michael E., Booij, Kees, Kennedy, Karen E., Müller, Jochen F. and Hawker, Darryl W. (2005) Passive air sampling theory for semivolatile organic compounds. Chemosphere, 60 2: 170-176. doi:10.1016/j.chemosphere.2004.12.033

Author Bartkow, Michael E.
Booij, Kees
Kennedy, Karen E.
Müller, Jochen F.
Hawker, Darryl W.
Title Passive air sampling theory for semivolatile organic compounds
Journal name Chemosphere   Check publisher's open access policy
ISSN 0045-6535
Publication date 2005
Sub-type Article (original research)
DOI 10.1016/j.chemosphere.2004.12.033
Volume 60
Issue 2
Start page 170
End page 176
Total pages 7
Place of publication Oxford
Publisher Pergamon-Elsevier Science Ltd
Collection year 2005
Language eng
Subject C1
321299 Public Health and Health Services not elsewhere classified
730210 Environmental health
Abstract The mathematical modelling underlying passive air sampling theory can be based on mass transfer coefficients or rate constants. Generally, these models have not been inter-related. Starting with basic models, the exchange of chemicals between the gaseous phase and the sampler is developed using mass transfer coefficients and rate constants. Importantly, the inter-relationships between the approaches are demonstrated by relating uptake rate constants and loss rate constants to mass transfer coefficients when either sampler-side or air-side resistance is dominating chemical exchange. The influence of sampler area and sampler volume on chemical exchange is discussed in general terms and as they relate to frequently used parameters such as sampling rates and time to equilibrium. Where air-side or sampler-side resistance dominates, an increase in the surface area of the sampler will increase sampling rates. Sampling rates are not related to the sampler/air partition coefficient (K-SV) when air-side resistance dominates and increase with K-SV when sampler-side resistance dominates.
Keyword Passive Air Sampling
Rate Constants
Mass Transfer Coefficients
Air-side Resistance
Semipermeable-membrane Devices
Uptake Kinetics
Environmental Sciences
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 06:05:30 EST