A high temperature volatility technique for determination of atmospheric aerosol composition

C. D. O'Dowd; S. G. Jennings; M. H. Smith; W. Cooke

doi:10.1016/0021-8502(92)90558-D

A high temperature volatility technique for determination of atmospheric aerosol composition

C. D. O'Dowd, S. G. Jennings, M. H. Smith, W. Cooke

Research output: Contribution to a Journal (Peer & Non Peer) › Article › peer-review

18 Citations (Scopus)

Abstract

Size segregated atmospheric aerosol composition, over the radius range 0.05μm ≤ r ≤ 1.5μm, is inferred using an optical particle counter equipped with a high temperature heater tube cycling through temperatures from 20°C to 870°C. The volatility system infers the presence of common atmospheric constituents such as H₂SO₄, (NH₄)₂SO₄, NaCl, and soot carbon. This system has been successfully used to determine the physico-chemical characteristics of accumulation mode aerosol associated with air masses of different origin. Results from ship-borne and ground based measurements are presented. For continental and modified maritime air, (NH₄)₂SO₄ was observed to be the dominant species, whilst H₂SO₄ was more abundant in Arctic aerosol. Sea-salt aerosol accounts for ≈75% of accumulation mode particle concentration for maritime aerosol in periods of high wind speeds. We also show that soot carbon can be identified in polluted air using this technique.

Original language	English
Pages (from-to)	905-908
Number of pages	4
Journal	Journal of Aerosol Science
Volume	23
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/0021-8502(92)90558-D
Publication status	Published - 1992
Externally published	Yes

Keywords

aerosol
air mass
sea-salt
soot
sulphate
Volatility

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10.1016/0021-8502(92)90558-D

Cite this

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title = "A high temperature volatility technique for determination of atmospheric aerosol composition",

abstract = "Size segregated atmospheric aerosol composition, over the radius range 0.05μm ≤ r ≤ 1.5μm, is inferred using an optical particle counter equipped with a high temperature heater tube cycling through temperatures from 20°C to 870°C. The volatility system infers the presence of common atmospheric constituents such as H2SO4, (NH4)2SO4, NaCl, and soot carbon. This system has been successfully used to determine the physico-chemical characteristics of accumulation mode aerosol associated with air masses of different origin. Results from ship-borne and ground based measurements are presented. For continental and modified maritime air, (NH4)2SO4 was observed to be the dominant species, whilst H2SO4 was more abundant in Arctic aerosol. Sea-salt aerosol accounts for ≈75\% of accumulation mode particle concentration for maritime aerosol in periods of high wind speeds. We also show that soot carbon can be identified in polluted air using this technique.",

keywords = "aerosol, air mass, sea-salt, soot, sulphate, Volatility",

author = "O'Dowd, \{C. D.\} and Jennings, \{S. G.\} and Smith, \{M. H.\} and W. Cooke",

year = "1992",

doi = "10.1016/0021-8502(92)90558-D",

language = "English",

volume = "23",

pages = "905--908",

journal = "Journal of Aerosol Science",

issn = "0021-8502",

publisher = "Elsevier Ltd",

number = "SUPPL. 1",

}

TY - JOUR

T1 - A high temperature volatility technique for determination of atmospheric aerosol composition

AU - O'Dowd, C. D.

AU - Jennings, S. G.

AU - Smith, M. H.

AU - Cooke, W.

PY - 1992

Y1 - 1992

N2 - Size segregated atmospheric aerosol composition, over the radius range 0.05μm ≤ r ≤ 1.5μm, is inferred using an optical particle counter equipped with a high temperature heater tube cycling through temperatures from 20°C to 870°C. The volatility system infers the presence of common atmospheric constituents such as H2SO4, (NH4)2SO4, NaCl, and soot carbon. This system has been successfully used to determine the physico-chemical characteristics of accumulation mode aerosol associated with air masses of different origin. Results from ship-borne and ground based measurements are presented. For continental and modified maritime air, (NH4)2SO4 was observed to be the dominant species, whilst H2SO4 was more abundant in Arctic aerosol. Sea-salt aerosol accounts for ≈75% of accumulation mode particle concentration for maritime aerosol in periods of high wind speeds. We also show that soot carbon can be identified in polluted air using this technique.

AB - Size segregated atmospheric aerosol composition, over the radius range 0.05μm ≤ r ≤ 1.5μm, is inferred using an optical particle counter equipped with a high temperature heater tube cycling through temperatures from 20°C to 870°C. The volatility system infers the presence of common atmospheric constituents such as H2SO4, (NH4)2SO4, NaCl, and soot carbon. This system has been successfully used to determine the physico-chemical characteristics of accumulation mode aerosol associated with air masses of different origin. Results from ship-borne and ground based measurements are presented. For continental and modified maritime air, (NH4)2SO4 was observed to be the dominant species, whilst H2SO4 was more abundant in Arctic aerosol. Sea-salt aerosol accounts for ≈75% of accumulation mode particle concentration for maritime aerosol in periods of high wind speeds. We also show that soot carbon can be identified in polluted air using this technique.

KW - aerosol

KW - air mass

KW - sea-salt

KW - soot

KW - sulphate

KW - Volatility

UR - https://www.scopus.com/pages/publications/0026962576

U2 - 10.1016/0021-8502(92)90558-D

DO - 10.1016/0021-8502(92)90558-D

M3 - Article

AN - SCOPUS:0026962576

SN - 0021-8502

VL - 23

SP - 905

EP - 908

JO - Journal of Aerosol Science

JF - Journal of Aerosol Science

IS - SUPPL. 1

ER -

A high temperature volatility technique for determination of atmospheric aerosol composition

Abstract

Keywords

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