Atmospheric occurrence of 2-nitrobenzanthrone associated with airborne particles in central Tokyo

Koji Inazu; Vu Duc Nam; Takahiro Asato; Hiroshi Okochi; Yoshiharu Hisamatsu; Takaaki Kobayashi; Toshihide Baba

doi:10.1080/10406630802374457

Atmospheric occurrence of 2-nitrobenzanthrone associated with airborne particles in central Tokyo

Koji Inazu^*, Vu Duc Nam, Takahiro Asato, Hiroshi Okochi, Yoshiharu Hisamatsu, Takaaki Kobayashi, Toshihide Baba

^*Corresponding author for this work

School of Creative Science and Engineering

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

2- and 3-Nitrobenzanthrones (NBAs) in airborne particles collected in central Tokyo on a seasonal basis from 1996 to 2001 are quantified and possible sources are investigated. The concentrations of 2- and 3-NBA are found to range from 49 to 831 fmol m^-3and 0.5 to 3.5 fmol m^-3, while the nitrated polycyclic hydrocarbons 1-nitropyrene and 2-nitrofluoranthene are found at concentrations of 100-492 fmol m^-3 and 10-97 fmol m^-3. Significant linear correlations are identified between 2-NBA and NO ₂, a photochemical product, suggesting that 2-NBA is formed by atmospheric reactions of benzanthrone initiated by hydroxyl or nitrate radicals in the presence of NO₂. 2-NBA is not correlated with directly emitted compounds such as 1-nitropyrene. The concentration ratio of 2-NBA to 1-nitropyrene is 5 or greater in all samples. Nitrated polycyclic aromatic compounds formed by atmospheric reactions therefore appear to represent a substantial contribution to the mutagenicity of airborne particulate matter.

Original language	English
Pages (from-to)	562-577
Number of pages	16
Journal	Polycyclic Aromatic Compounds
Volume	28
Issue number	4-5
DOIs	https://doi.org/10.1080/10406630802374457
Publication status	Published - 2008 Aug

Keywords

2-Nitrobenzanthrone
Airborne particles
Atmospheric nitration
PAH

ASJC Scopus subject areas

Organic Chemistry
Polymers and Plastics
Materials Chemistry

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10.1080/10406630802374457

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title = "Atmospheric occurrence of 2-nitrobenzanthrone associated with airborne particles in central Tokyo",

abstract = "2- and 3-Nitrobenzanthrones (NBAs) in airborne particles collected in central Tokyo on a seasonal basis from 1996 to 2001 are quantified and possible sources are investigated. The concentrations of 2- and 3-NBA are found to range from 49 to 831 fmol m-3and 0.5 to 3.5 fmol m-3, while the nitrated polycyclic hydrocarbons 1-nitropyrene and 2-nitrofluoranthene are found at concentrations of 100-492 fmol m-3 and 10-97 fmol m-3. Significant linear correlations are identified between 2-NBA and NO 2, a photochemical product, suggesting that 2-NBA is formed by atmospheric reactions of benzanthrone initiated by hydroxyl or nitrate radicals in the presence of NO2. 2-NBA is not correlated with directly emitted compounds such as 1-nitropyrene. The concentration ratio of 2-NBA to 1-nitropyrene is 5 or greater in all samples. Nitrated polycyclic aromatic compounds formed by atmospheric reactions therefore appear to represent a substantial contribution to the mutagenicity of airborne particulate matter.",

keywords = "2-Nitrobenzanthrone, Airborne particles, Atmospheric nitration, PAH",

author = "Koji Inazu and Nam, {Vu Duc} and Takahiro Asato and Hiroshi Okochi and Yoshiharu Hisamatsu and Takaaki Kobayashi and Toshihide Baba",

note = "Funding Information: This work was supported in part by a Grant-in-Aid for Scientific Research (Nos. 16710030 and 14780409) from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.",

year = "2008",

month = aug,

doi = "10.1080/10406630802374457",

language = "English",

volume = "28",

pages = "562--577",

journal = "Polycyclic Aromatic Compounds",

issn = "1040-6638",

publisher = "Taylor and Francis Ltd.",

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TY - JOUR

T1 - Atmospheric occurrence of 2-nitrobenzanthrone associated with airborne particles in central Tokyo

AU - Inazu, Koji

AU - Nam, Vu Duc

AU - Asato, Takahiro

AU - Okochi, Hiroshi

AU - Hisamatsu, Yoshiharu

AU - Kobayashi, Takaaki

AU - Baba, Toshihide

N1 - Funding Information: This work was supported in part by a Grant-in-Aid for Scientific Research (Nos. 16710030 and 14780409) from the Ministry of Education, Culture, Sports, Science, and Technology of Japan.

PY - 2008/8

Y1 - 2008/8

N2 - 2- and 3-Nitrobenzanthrones (NBAs) in airborne particles collected in central Tokyo on a seasonal basis from 1996 to 2001 are quantified and possible sources are investigated. The concentrations of 2- and 3-NBA are found to range from 49 to 831 fmol m-3and 0.5 to 3.5 fmol m-3, while the nitrated polycyclic hydrocarbons 1-nitropyrene and 2-nitrofluoranthene are found at concentrations of 100-492 fmol m-3 and 10-97 fmol m-3. Significant linear correlations are identified between 2-NBA and NO 2, a photochemical product, suggesting that 2-NBA is formed by atmospheric reactions of benzanthrone initiated by hydroxyl or nitrate radicals in the presence of NO2. 2-NBA is not correlated with directly emitted compounds such as 1-nitropyrene. The concentration ratio of 2-NBA to 1-nitropyrene is 5 or greater in all samples. Nitrated polycyclic aromatic compounds formed by atmospheric reactions therefore appear to represent a substantial contribution to the mutagenicity of airborne particulate matter.

AB - 2- and 3-Nitrobenzanthrones (NBAs) in airborne particles collected in central Tokyo on a seasonal basis from 1996 to 2001 are quantified and possible sources are investigated. The concentrations of 2- and 3-NBA are found to range from 49 to 831 fmol m-3and 0.5 to 3.5 fmol m-3, while the nitrated polycyclic hydrocarbons 1-nitropyrene and 2-nitrofluoranthene are found at concentrations of 100-492 fmol m-3 and 10-97 fmol m-3. Significant linear correlations are identified between 2-NBA and NO 2, a photochemical product, suggesting that 2-NBA is formed by atmospheric reactions of benzanthrone initiated by hydroxyl or nitrate radicals in the presence of NO2. 2-NBA is not correlated with directly emitted compounds such as 1-nitropyrene. The concentration ratio of 2-NBA to 1-nitropyrene is 5 or greater in all samples. Nitrated polycyclic aromatic compounds formed by atmospheric reactions therefore appear to represent a substantial contribution to the mutagenicity of airborne particulate matter.

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KW - Airborne particles

KW - Atmospheric nitration

KW - PAH

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ER -

Atmospheric occurrence of 2-nitrobenzanthrone associated with airborne particles in central Tokyo

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Keywords

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