Surfactants in South East Asian Aerosols

Mohd Talib Latif, Peter Brimblecombe, Nor Azam Ramli, Justin Sentian, Jariya Sukhapan, Norela Sulaiman

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

The concentration of surfactants in aerosols was determined at several sites in South East Asia, Bangi, Penang and Kota Kinabalu in Malaysia and Bangkok, Thailand, as methylene blue active substances (MBAS) and ethyl violet active substances (EVAS) for anionic surfactants and disulphine blue active substances (DBAS) for cationic surfactants. The methodology used is based on the formation of extractable ion-association complexes of surfactants and dye in organic solvents followed by spectrometric measurement of the intensity of the extracted coloured complex. Results showed surfactants in aerosols are mostly in the anionic form as MBAS and EVAS, and higher in aerosols collected in congested areas, especially in times of forest fires. Concentrations are in the range of 34.6 to 285.0 pmol m-3 for MBAS and 129.9 to 932.2 pmol m-3 for EVAS. Several different types of soot and humic acid seem possible sources of surfactants in atmospheric aerosols. Laboratory experiments suggested that combustion products, especially from motor vehicles, are important primary sources of surfactants in aerosols. There is also some laboratory evidence that there are secondary sources for these surfactants in aerosols, possibly humic-like substances (HULIS) from the oxidation and photochemical reaction of soots and humic acid.

Original languageEnglish
Pages (from-to)198-204
Number of pages7
JournalEnvironmental Chemistry
Volume2
Issue number3
DOIs
Publication statusPublished - 2005

Fingerprint

Aerosols
Surface-Active Agents
surfactant
aerosol
Methylene Blue
Soot
Humic Substances
soot
humic acid
Atmospheric aerosols
Anionic surfactants
Photochemical reactions
Cationic surfactants
Organic solvents
Fires
Coloring Agents
forest fire
Association reactions
Ions
Oxidation

Keywords

  • Aerosols
  • Humic substances
  • Surfactants

ASJC Scopus subject areas

  • Geochemistry and Petrology
  • Chemistry (miscellaneous)
  • Environmental Chemistry

Cite this

Latif, M. T., Brimblecombe, P., Ramli, N. A., Sentian, J., Sukhapan, J., & Sulaiman, N. (2005). Surfactants in South East Asian Aerosols. Environmental Chemistry, 2(3), 198-204. https://doi.org/10.1071/EN05031

Surfactants in South East Asian Aerosols. / Latif, Mohd Talib; Brimblecombe, Peter; Ramli, Nor Azam; Sentian, Justin; Sukhapan, Jariya; Sulaiman, Norela.

In: Environmental Chemistry, Vol. 2, No. 3, 2005, p. 198-204.

Research output: Contribution to journalArticle

Latif, MT, Brimblecombe, P, Ramli, NA, Sentian, J, Sukhapan, J & Sulaiman, N 2005, 'Surfactants in South East Asian Aerosols', Environmental Chemistry, vol. 2, no. 3, pp. 198-204. https://doi.org/10.1071/EN05031
Latif, Mohd Talib ; Brimblecombe, Peter ; Ramli, Nor Azam ; Sentian, Justin ; Sukhapan, Jariya ; Sulaiman, Norela. / Surfactants in South East Asian Aerosols. In: Environmental Chemistry. 2005 ; Vol. 2, No. 3. pp. 198-204.
@article{d4e3ae95f41d4ea4867e79286b2ee363,
title = "Surfactants in South East Asian Aerosols",
abstract = "The concentration of surfactants in aerosols was determined at several sites in South East Asia, Bangi, Penang and Kota Kinabalu in Malaysia and Bangkok, Thailand, as methylene blue active substances (MBAS) and ethyl violet active substances (EVAS) for anionic surfactants and disulphine blue active substances (DBAS) for cationic surfactants. The methodology used is based on the formation of extractable ion-association complexes of surfactants and dye in organic solvents followed by spectrometric measurement of the intensity of the extracted coloured complex. Results showed surfactants in aerosols are mostly in the anionic form as MBAS and EVAS, and higher in aerosols collected in congested areas, especially in times of forest fires. Concentrations are in the range of 34.6 to 285.0 pmol m-3 for MBAS and 129.9 to 932.2 pmol m-3 for EVAS. Several different types of soot and humic acid seem possible sources of surfactants in atmospheric aerosols. Laboratory experiments suggested that combustion products, especially from motor vehicles, are important primary sources of surfactants in aerosols. There is also some laboratory evidence that there are secondary sources for these surfactants in aerosols, possibly humic-like substances (HULIS) from the oxidation and photochemical reaction of soots and humic acid.",
keywords = "Aerosols, Humic substances, Surfactants",
author = "Latif, {Mohd Talib} and Peter Brimblecombe and Ramli, {Nor Azam} and Justin Sentian and Jariya Sukhapan and Norela Sulaiman",
year = "2005",
doi = "10.1071/EN05031",
language = "English",
volume = "2",
pages = "198--204",
journal = "Environmental Chemistry",
issn = "1448-2517",
publisher = "CSIRO",
number = "3",

}

TY - JOUR

T1 - Surfactants in South East Asian Aerosols

AU - Latif, Mohd Talib

AU - Brimblecombe, Peter

AU - Ramli, Nor Azam

AU - Sentian, Justin

AU - Sukhapan, Jariya

AU - Sulaiman, Norela

PY - 2005

Y1 - 2005

N2 - The concentration of surfactants in aerosols was determined at several sites in South East Asia, Bangi, Penang and Kota Kinabalu in Malaysia and Bangkok, Thailand, as methylene blue active substances (MBAS) and ethyl violet active substances (EVAS) for anionic surfactants and disulphine blue active substances (DBAS) for cationic surfactants. The methodology used is based on the formation of extractable ion-association complexes of surfactants and dye in organic solvents followed by spectrometric measurement of the intensity of the extracted coloured complex. Results showed surfactants in aerosols are mostly in the anionic form as MBAS and EVAS, and higher in aerosols collected in congested areas, especially in times of forest fires. Concentrations are in the range of 34.6 to 285.0 pmol m-3 for MBAS and 129.9 to 932.2 pmol m-3 for EVAS. Several different types of soot and humic acid seem possible sources of surfactants in atmospheric aerosols. Laboratory experiments suggested that combustion products, especially from motor vehicles, are important primary sources of surfactants in aerosols. There is also some laboratory evidence that there are secondary sources for these surfactants in aerosols, possibly humic-like substances (HULIS) from the oxidation and photochemical reaction of soots and humic acid.

AB - The concentration of surfactants in aerosols was determined at several sites in South East Asia, Bangi, Penang and Kota Kinabalu in Malaysia and Bangkok, Thailand, as methylene blue active substances (MBAS) and ethyl violet active substances (EVAS) for anionic surfactants and disulphine blue active substances (DBAS) for cationic surfactants. The methodology used is based on the formation of extractable ion-association complexes of surfactants and dye in organic solvents followed by spectrometric measurement of the intensity of the extracted coloured complex. Results showed surfactants in aerosols are mostly in the anionic form as MBAS and EVAS, and higher in aerosols collected in congested areas, especially in times of forest fires. Concentrations are in the range of 34.6 to 285.0 pmol m-3 for MBAS and 129.9 to 932.2 pmol m-3 for EVAS. Several different types of soot and humic acid seem possible sources of surfactants in atmospheric aerosols. Laboratory experiments suggested that combustion products, especially from motor vehicles, are important primary sources of surfactants in aerosols. There is also some laboratory evidence that there are secondary sources for these surfactants in aerosols, possibly humic-like substances (HULIS) from the oxidation and photochemical reaction of soots and humic acid.

KW - Aerosols

KW - Humic substances

KW - Surfactants

UR - http://www.scopus.com/inward/record.url?scp=27744468120&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=27744468120&partnerID=8YFLogxK

U2 - 10.1071/EN05031

DO - 10.1071/EN05031

M3 - Article

VL - 2

SP - 198

EP - 204

JO - Environmental Chemistry

JF - Environmental Chemistry

SN - 1448-2517

IS - 3

ER -