Gas-particle distribution of PAHs in wood combustion emission determined with annular denuders, filter and polyurethane foam adsorbent

Kati Hytönen, Pasi Yli-Pirilä, Jarkko Tissari, A. Gröhn, Ilona Riipinen, Kari, E.J. Lehtinen, Jorma Jokiniemi

Research output: Contribution to journalArticleScientificpeer-review

21 Citations (Scopus)

Abstract

Equipment consisting of annular denuders, a filter, and a polyurethane foam adsorbent was used for sampling 15 PAHs from the diluted emission from a heat-storing masonry heater. The denuder method was compared to the ISO 11338 method which was used for the sampling from hot and undiluted exhaust gas. The denuder method used with the exhaust dilution gave a realistic gas–particle distribution of PAHs in more atmospheric-like conditions compared to the sampling from undiluted exhaust gas where PAHs were almost totally in the gas phase. The results gained with the denuder method from the diluted exhaust are more relevant, e.g., from exposure and atmospheric processes point of view. The emissions from smoldering combustion conditions (SC) were compared with the emissions from normal combustion conditions (NC). The emission of each PAH was 7 to 14 times higher from SC than from NC, and the gas–particle distribution was shifted towards the particle phase due to increased condensation of PAHs. The PAHs could be divided into three groups based on their phase distributions. In the first group, PAHs existed mostly in the gas phase in both combustion cases; the vapor pressures of PAHs were lower than the saturation vapor pressures. In the second group, the gas phase was saturated and the concentration was almost the same in both combustion cases, whereas the particle phase concentration was higher in SC. In the third group, PAHs were mostly in the particle phase where the concentration was higher in SC.
Original languageEnglish
Pages (from-to)442-454
JournalAerosol Science and Technology
Volume43
Issue number5
DOIs
Publication statusPublished - 2009
MoE publication typeA1 Journal article-refereed

Fingerprint

Polycyclic aromatic hydrocarbons
foam
Adsorbents
Polyurethanes
Foams
Wood
PAH
combustion
Gases
filter
gas
Sampling
Exhaust gases
Vapor pressure
vapor pressure
sampling
particle
distribution
polyurethane foam
masonry

Cite this

Hytönen, Kati ; Yli-Pirilä, Pasi ; Tissari, Jarkko ; Gröhn, A. ; Riipinen, Ilona ; Lehtinen, Kari, E.J. ; Jokiniemi, Jorma. / Gas-particle distribution of PAHs in wood combustion emission determined with annular denuders, filter and polyurethane foam adsorbent. In: Aerosol Science and Technology. 2009 ; Vol. 43, No. 5. pp. 442-454.
@article{b508e0b57bec42eda3df843e836a9e1f,
title = "Gas-particle distribution of PAHs in wood combustion emission determined with annular denuders, filter and polyurethane foam adsorbent",
abstract = "Equipment consisting of annular denuders, a filter, and a polyurethane foam adsorbent was used for sampling 15 PAHs from the diluted emission from a heat-storing masonry heater. The denuder method was compared to the ISO 11338 method which was used for the sampling from hot and undiluted exhaust gas. The denuder method used with the exhaust dilution gave a realistic gas–particle distribution of PAHs in more atmospheric-like conditions compared to the sampling from undiluted exhaust gas where PAHs were almost totally in the gas phase. The results gained with the denuder method from the diluted exhaust are more relevant, e.g., from exposure and atmospheric processes point of view. The emissions from smoldering combustion conditions (SC) were compared with the emissions from normal combustion conditions (NC). The emission of each PAH was 7 to 14 times higher from SC than from NC, and the gas–particle distribution was shifted towards the particle phase due to increased condensation of PAHs. The PAHs could be divided into three groups based on their phase distributions. In the first group, PAHs existed mostly in the gas phase in both combustion cases; the vapor pressures of PAHs were lower than the saturation vapor pressures. In the second group, the gas phase was saturated and the concentration was almost the same in both combustion cases, whereas the particle phase concentration was higher in SC. In the third group, PAHs were mostly in the particle phase where the concentration was higher in SC.",
author = "Kati Hyt{\"o}nen and Pasi Yli-Piril{\"a} and Jarkko Tissari and A. Gr{\"o}hn and Ilona Riipinen and Lehtinen, {Kari, E.J.} and Jorma Jokiniemi",
year = "2009",
doi = "10.1080/02786820802716743",
language = "English",
volume = "43",
pages = "442--454",
journal = "Aerosol Science and Technology",
issn = "0278-6826",
publisher = "Taylor & Francis",
number = "5",

}

Gas-particle distribution of PAHs in wood combustion emission determined with annular denuders, filter and polyurethane foam adsorbent. / Hytönen, Kati; Yli-Pirilä, Pasi; Tissari, Jarkko; Gröhn, A.; Riipinen, Ilona; Lehtinen, Kari, E.J.; Jokiniemi, Jorma.

In: Aerosol Science and Technology, Vol. 43, No. 5, 2009, p. 442-454.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Gas-particle distribution of PAHs in wood combustion emission determined with annular denuders, filter and polyurethane foam adsorbent

AU - Hytönen, Kati

AU - Yli-Pirilä, Pasi

AU - Tissari, Jarkko

AU - Gröhn, A.

AU - Riipinen, Ilona

AU - Lehtinen, Kari, E.J.

AU - Jokiniemi, Jorma

PY - 2009

Y1 - 2009

N2 - Equipment consisting of annular denuders, a filter, and a polyurethane foam adsorbent was used for sampling 15 PAHs from the diluted emission from a heat-storing masonry heater. The denuder method was compared to the ISO 11338 method which was used for the sampling from hot and undiluted exhaust gas. The denuder method used with the exhaust dilution gave a realistic gas–particle distribution of PAHs in more atmospheric-like conditions compared to the sampling from undiluted exhaust gas where PAHs were almost totally in the gas phase. The results gained with the denuder method from the diluted exhaust are more relevant, e.g., from exposure and atmospheric processes point of view. The emissions from smoldering combustion conditions (SC) were compared with the emissions from normal combustion conditions (NC). The emission of each PAH was 7 to 14 times higher from SC than from NC, and the gas–particle distribution was shifted towards the particle phase due to increased condensation of PAHs. The PAHs could be divided into three groups based on their phase distributions. In the first group, PAHs existed mostly in the gas phase in both combustion cases; the vapor pressures of PAHs were lower than the saturation vapor pressures. In the second group, the gas phase was saturated and the concentration was almost the same in both combustion cases, whereas the particle phase concentration was higher in SC. In the third group, PAHs were mostly in the particle phase where the concentration was higher in SC.

AB - Equipment consisting of annular denuders, a filter, and a polyurethane foam adsorbent was used for sampling 15 PAHs from the diluted emission from a heat-storing masonry heater. The denuder method was compared to the ISO 11338 method which was used for the sampling from hot and undiluted exhaust gas. The denuder method used with the exhaust dilution gave a realistic gas–particle distribution of PAHs in more atmospheric-like conditions compared to the sampling from undiluted exhaust gas where PAHs were almost totally in the gas phase. The results gained with the denuder method from the diluted exhaust are more relevant, e.g., from exposure and atmospheric processes point of view. The emissions from smoldering combustion conditions (SC) were compared with the emissions from normal combustion conditions (NC). The emission of each PAH was 7 to 14 times higher from SC than from NC, and the gas–particle distribution was shifted towards the particle phase due to increased condensation of PAHs. The PAHs could be divided into three groups based on their phase distributions. In the first group, PAHs existed mostly in the gas phase in both combustion cases; the vapor pressures of PAHs were lower than the saturation vapor pressures. In the second group, the gas phase was saturated and the concentration was almost the same in both combustion cases, whereas the particle phase concentration was higher in SC. In the third group, PAHs were mostly in the particle phase where the concentration was higher in SC.

U2 - 10.1080/02786820802716743

DO - 10.1080/02786820802716743

M3 - Article

VL - 43

SP - 442

EP - 454

JO - Aerosol Science and Technology

JF - Aerosol Science and Technology

SN - 0278-6826

IS - 5

ER -