Field intercomparison of filter pack and impactor sampling for aerosol nitrate, ammonium, and sulphate at coastal and inland sites

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Field intercomparison of filter pack and impactor sampling for aerosol nitrate, ammonium, and sulphate at coastal and inland sites. / Huang, Z; Harrison, Roy; Allen, Andrew; James, JD; Tilling, Robert; Yin, Jianxin.

In: Atmospheric Research, Vol. 71, 01.01.2004, p. 215-232.

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@article{8ed838f5a9934ddf982aa17f86ec91cf,
title = "Field intercomparison of filter pack and impactor sampling for aerosol nitrate, ammonium, and sulphate at coastal and inland sites",
abstract = "An intercomparison has been performed on the coarse (>2.5 mum) and fine fraction (0.1 ppbv(2)), significantly negative sampling artefacts are observed for both nitrate and ammonium concentrations obtained with the impactor relative to the filter pack. Nevertheless, it is shown that both filter pack and MOUDI are capable of collecting ammonium nitrate from polluted air masses although the absolute efficiency is unknown. From the measurements obtained with the MOUDI in summertime at both coastal and inland sites, it is observed that about 64% of collected particle nitrate is present in the coarse (> 2.5 mum) mode; but in wintertime, only about 29% of particle nitrate is found to reside in the coarse particles collected at the inland site. The lower efficiency of the MOUDI for ammonium nitrate relative to the Teflon filter is in marked contrast to the reported higher efficiency of the Berner impactor than the Teflon filter for sampling nitrate from polluted air. (C) 2004 Elsevier B.V. All rights reserved.",
keywords = "ammonium, sulphate, nitrate, MOUDI",
author = "Z Huang and Roy Harrison and Andrew Allen and JD James and Robert Tilling and Jianxin Yin",
year = "2004",
month = jan,
day = "1",
doi = "10.1016/j.atmosres.2004.05.002",
language = "English",
volume = "71",
pages = "215--232",
journal = "Atmospheric Research",
issn = "0169-8095",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Field intercomparison of filter pack and impactor sampling for aerosol nitrate, ammonium, and sulphate at coastal and inland sites

AU - Huang, Z

AU - Harrison, Roy

AU - Allen, Andrew

AU - James, JD

AU - Tilling, Robert

AU - Yin, Jianxin

PY - 2004/1/1

Y1 - 2004/1/1

N2 - An intercomparison has been performed on the coarse (>2.5 mum) and fine fraction (0.1 ppbv(2)), significantly negative sampling artefacts are observed for both nitrate and ammonium concentrations obtained with the impactor relative to the filter pack. Nevertheless, it is shown that both filter pack and MOUDI are capable of collecting ammonium nitrate from polluted air masses although the absolute efficiency is unknown. From the measurements obtained with the MOUDI in summertime at both coastal and inland sites, it is observed that about 64% of collected particle nitrate is present in the coarse (> 2.5 mum) mode; but in wintertime, only about 29% of particle nitrate is found to reside in the coarse particles collected at the inland site. The lower efficiency of the MOUDI for ammonium nitrate relative to the Teflon filter is in marked contrast to the reported higher efficiency of the Berner impactor than the Teflon filter for sampling nitrate from polluted air. (C) 2004 Elsevier B.V. All rights reserved.

AB - An intercomparison has been performed on the coarse (>2.5 mum) and fine fraction (0.1 ppbv(2)), significantly negative sampling artefacts are observed for both nitrate and ammonium concentrations obtained with the impactor relative to the filter pack. Nevertheless, it is shown that both filter pack and MOUDI are capable of collecting ammonium nitrate from polluted air masses although the absolute efficiency is unknown. From the measurements obtained with the MOUDI in summertime at both coastal and inland sites, it is observed that about 64% of collected particle nitrate is present in the coarse (> 2.5 mum) mode; but in wintertime, only about 29% of particle nitrate is found to reside in the coarse particles collected at the inland site. The lower efficiency of the MOUDI for ammonium nitrate relative to the Teflon filter is in marked contrast to the reported higher efficiency of the Berner impactor than the Teflon filter for sampling nitrate from polluted air. (C) 2004 Elsevier B.V. All rights reserved.

KW - ammonium

KW - sulphate

KW - nitrate

KW - MOUDI

UR - http://www.scopus.com/inward/record.url?scp=13944253334&partnerID=8YFLogxK

U2 - 10.1016/j.atmosres.2004.05.002

DO - 10.1016/j.atmosres.2004.05.002

M3 - Article

VL - 71

SP - 215

EP - 232

JO - Atmospheric Research

JF - Atmospheric Research

SN - 0169-8095

ER -