Advanced

Use of Depuration Compounds in Passive Air Samplers: Results from Active Sampling-Supported Field Deployment, Potential Uses, and Recommendations

Moeckel, Claudia; Harner, Tom; Nizzetto, Luca; Strandberg, Bo; Lindroth, Anders LU and Jones, Kevin C. (2009) In Environmental Science & Technology 43(9). p.3227-3232
Abstract
Deputation compounds (DCs) are added to passive air samplers (PAS) prior to deployment to account for the wind-dependency of the sampling rate for gas-phase compounds. This correction is particularly useful for providing comparable data for samplers that are deployed in different environments and subject to different meteorological conditions such as wind speeds. Two types of PAS-the polyurethane foam (PUF) disk sampler and semipermeable membrane devices (SPMDs)-were deployed at eight heights on a 100 m tower to test whether the DC approach could yield air concentrations profiles for PCBs and organochlorine pesticides and account for the wind speed gradient with height. Average wind speeds ranged from 0.3 to 4.5 ms(-1) over the 40 day... (More)
Deputation compounds (DCs) are added to passive air samplers (PAS) prior to deployment to account for the wind-dependency of the sampling rate for gas-phase compounds. This correction is particularly useful for providing comparable data for samplers that are deployed in different environments and subject to different meteorological conditions such as wind speeds. Two types of PAS-the polyurethane foam (PUF) disk sampler and semipermeable membrane devices (SPMDs)-were deployed at eight heights on a 100 m tower to test whether the DC approach could yield air concentrations profiles for PCBs and organochlorine pesticides and account for the wind speed gradient with height. Average wind speeds ranged from 0.3 to 4.5 ms(-1) over the 40 day deployment, increasing with height. Two low volume active air samples (AAS), one collected at 25 m and one at 73 m over the 40 day deployment showed no significant concentration differences for target compounds. As expected, the target compounds taken tip by PAS reflected the wind profile with height. This wind-dependency of the PAS was also reflected in the results of the DCs. A correction based on the DC approach successfully accounted for the effect of wind on PAS sampling rates, yielding a profile consistent with the AAS. Interestingly, in terms of absolute air concentrations, there were differences between the AAS and PAS-derived values for some target compounds. These were attributed to different sampling characteristics of the two approaches that may have resulted in slightly different air masses being sampled. Based on the results of this study, guidelines are presented for the use of DCs and for the calibration of PAS using AAS. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Environmental Science & Technology
volume
43
issue
9
pages
3227 - 3232
publisher
The American Chemical Society
external identifiers
  • wos:000265781100043
  • scopus:66449085285
ISSN
1520-5851
DOI
10.1021/es802897x
language
English
LU publication?
yes
id
7aefae6a-ae76-4f32-a22d-244145f11d52 (old id 1426194)
date added to LUP
2009-06-26 11:24:57
date last changed
2017-10-22 04:13:06
@article{7aefae6a-ae76-4f32-a22d-244145f11d52,
  abstract     = {Deputation compounds (DCs) are added to passive air samplers (PAS) prior to deployment to account for the wind-dependency of the sampling rate for gas-phase compounds. This correction is particularly useful for providing comparable data for samplers that are deployed in different environments and subject to different meteorological conditions such as wind speeds. Two types of PAS-the polyurethane foam (PUF) disk sampler and semipermeable membrane devices (SPMDs)-were deployed at eight heights on a 100 m tower to test whether the DC approach could yield air concentrations profiles for PCBs and organochlorine pesticides and account for the wind speed gradient with height. Average wind speeds ranged from 0.3 to 4.5 ms(-1) over the 40 day deployment, increasing with height. Two low volume active air samples (AAS), one collected at 25 m and one at 73 m over the 40 day deployment showed no significant concentration differences for target compounds. As expected, the target compounds taken tip by PAS reflected the wind profile with height. This wind-dependency of the PAS was also reflected in the results of the DCs. A correction based on the DC approach successfully accounted for the effect of wind on PAS sampling rates, yielding a profile consistent with the AAS. Interestingly, in terms of absolute air concentrations, there were differences between the AAS and PAS-derived values for some target compounds. These were attributed to different sampling characteristics of the two approaches that may have resulted in slightly different air masses being sampled. Based on the results of this study, guidelines are presented for the use of DCs and for the calibration of PAS using AAS.},
  author       = {Moeckel, Claudia and Harner, Tom and Nizzetto, Luca and Strandberg, Bo and Lindroth, Anders and Jones, Kevin C.},
  issn         = {1520-5851},
  language     = {eng},
  number       = {9},
  pages        = {3227--3232},
  publisher    = {The American Chemical Society},
  series       = {Environmental Science & Technology},
  title        = {Use of Depuration Compounds in Passive Air Samplers: Results from Active Sampling-Supported Field Deployment, Potential Uses, and Recommendations},
  url          = {http://dx.doi.org/10.1021/es802897x},
  volume       = {43},
  year         = {2009},
}