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Collection of ambient particulate matter by porous vegetation barriers: sampling and characterization methods

Collection of ambient particulate matter by porous vegetation barriers: sampling and characterization methods
Collection of ambient particulate matter by porous vegetation barriers: sampling and characterization methods
Sampling and characterization methods for assessing the effect of vegetative barriers on particulate matter (PM10PM10) concentrations and functional group composition were developed and applied in a case study. Ambient PM10PM10 was concurrently sampled upwind and downwind of a hawthorn hedge at a rural location in the UK. Fourier transform infrared (FTIR) spectra of PM10PM10 samples were collected to characterize the functional group composition. Absorbances associated with sulfate, nitrate, ammonium, aliphatic carbon-hydrogen, and carbonyl functional groups were observed in the FTIR spectra. Calculations with gravimetric measurements show that the hedge collects PM10PM10 mass with a collection efficiency of 34% on average. FTIR results suggest that individual functional groups might exhibit different behavior in the hedge, but further method development and sampling is necessary to calculate functional group results with more confidence. Current results show the potential of using hedges to mitigate ambient concentrations of airborne PM10PM10, and applying these methods to a more statistically robust sample size is anticipated to aid in elucidating physico-chemical mechanisms driving collection of PM10PM10 by hedge elements.

ambient particulate matter, functional groups, filtration efficiency, vegetative barriers, ftir
0021-8502
40-47
Tiwary, Abhishek
97b69446-3517-4b2e-93dc-3f51f575dd92
Reff, Adam
64ae11e1-5202-47ce-9bec-694bc8bd0f03
Colls, Jeremy J.
db25acee-6679-413a-b47d-93f361fc0591
Tiwary, Abhishek
97b69446-3517-4b2e-93dc-3f51f575dd92
Reff, Adam
64ae11e1-5202-47ce-9bec-694bc8bd0f03
Colls, Jeremy J.
db25acee-6679-413a-b47d-93f361fc0591

Tiwary, Abhishek, Reff, Adam and Colls, Jeremy J. (2008) Collection of ambient particulate matter by porous vegetation barriers: sampling and characterization methods. Journal of Aerosol Science, 39 (1), 40-47. (doi:10.1016/j.jaerosci.2007.09.011).

Record type: Article

Abstract

Sampling and characterization methods for assessing the effect of vegetative barriers on particulate matter (PM10PM10) concentrations and functional group composition were developed and applied in a case study. Ambient PM10PM10 was concurrently sampled upwind and downwind of a hawthorn hedge at a rural location in the UK. Fourier transform infrared (FTIR) spectra of PM10PM10 samples were collected to characterize the functional group composition. Absorbances associated with sulfate, nitrate, ammonium, aliphatic carbon-hydrogen, and carbonyl functional groups were observed in the FTIR spectra. Calculations with gravimetric measurements show that the hedge collects PM10PM10 mass with a collection efficiency of 34% on average. FTIR results suggest that individual functional groups might exhibit different behavior in the hedge, but further method development and sampling is necessary to calculate functional group results with more confidence. Current results show the potential of using hedges to mitigate ambient concentrations of airborne PM10PM10, and applying these methods to a more statistically robust sample size is anticipated to aid in elucidating physico-chemical mechanisms driving collection of PM10PM10 by hedge elements.

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More information

Published date: January 2008
Keywords: ambient particulate matter, functional groups, filtration efficiency, vegetative barriers, ftir
Organisations: Civil Maritime & Env. Eng & Sci Unit

Identifiers

Local EPrints ID: 354508
URI: http://eprints.soton.ac.uk/id/eprint/354508
ISSN: 0021-8502
PURE UUID: a2633f55-0506-4ec8-b672-406ccd08801d

Catalogue record

Date deposited: 15 Jul 2013 13:52
Last modified: 16 Jul 2019 21:28

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