Comparison of Atmospheric Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons in Kanazawa, Sapporo and Tokyo

Kakimoto, Hitoshi; Kitamura, Moritsugu; Matsumoto, Yutaka; Sakai, Shunsuke; Kanoh, Fumio; Murahashi, Tsuyoshi; Akutsu, Kazuhiko; Kizu, Ryoichi; Hayakawa, Kazuichi

doi:10.1248/jhs.46.5

Cited by 45 publications

(24 citation statements)

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“…16 The average concentration of 1-NP (5.36 pg/m 3 ) was 10-times higher than those of total dinitropyrenes (0.49 pg/m sampling periods, the value in this study was comparable to that found in Florence, Italy, 18 or lower than those in Hong Kong, China, 19 Napli, Italy 20 and Kanazawa, Japan. 21 The average total NPAHs in 1998 (0.69 pg/m 3 ) was comparable to that of our previous results in Nagasaki, 16 or lower than that in Kanazawa. 21 The total PAHs concentration was three orders of magnitude higher than total NPAHs concentration in this study.…”

Section: Atmospheric Concentrations Of Pahs and Npahssupporting

confidence: 87%

“…21 The average total NPAHs in 1998 (0.69 pg/m 3 ) was comparable to that of our previous results in Nagasaki, 16 or lower than that in Kanazawa. 21 The total PAHs concentration was three orders of magnitude higher than total NPAHs concentration in this study. This result was also in accordance with that obtained in Kanazawa.…”

Section: Atmospheric Concentrations Of Pahs and Npahssupporting

confidence: 87%

“…This result was also in accordance with that obtained in Kanazawa. 21 The relationship between the concentration of PAHs and NPAHs was examined for all samples. As shown in Fig.…”

Section: Atmospheric Concentrations Of Pahs and Npahsmentioning

confidence: 99%

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Retrospective Analyses of Atmospheric Poly cyclic and Nitropolycyclic Aromatic Hydrocarbons in an Industrial Area of a Western Site of Japan

et al. 2005

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Thirteen polycyclic aromatic hydrocarbons (PAHs) and four nitropolycyclic aromatic hydrocarbons (NPAHs) on the surfaces of airborne particulates, which were collected at an industrial area of a western site of Japan during periods from 1976 to 1998, were retrospectively analyzed. PAHs and NPAHs were extracted from airborne particulates using hexane with ultrasonication, and then analyzed by HPLC systems with fluorescence detection and chemiluminescence detection, respectively. The total concentrations (mean ± SD, n = 34) were 15.54 ± 21.24 ng/m 3 for PAHs and 5.85 ± 8.16 pg/m 3 for NPAHs. The concentrations of PAHs and NPAHs were found to be highest during the period between 1979 and 1982, and then reduced. The annual concentrations of PAHs and NPAHs were highly correlated with those of air pollutants from motor vehicle origin, such as carbon monoxide, suspended particulates and non-methane hydrocarbons. The results suggested that motor vehicle emissions were one of the predominant sources of atmospheric PAHs and NPAHs.

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Section: Atmospheric Concentrations Of Pahs and Npahssupporting

confidence: 87%

Section: Atmospheric Concentrations Of Pahs and Npahssupporting

confidence: 87%

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Retrospective Analyses of Atmospheric Poly cyclic and Nitropolycyclic Aromatic Hydrocarbons in an Industrial Area of a Western Site of Japan

et al. 2005

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“…In urban areas, because the contribution of natural sources, such as spontaneous forest burning and volcanic emissions, of PAHs and NPAHs is limited, they are mainly emitted from automobiles, cooking, power plants, domestic heating and industrial processes. According to our previous studies, the main contributors of atmospheric PAHs and NPAHs were automobiles, especially diesel-engine vehicles in Japanese and South Korean commercial cities (Sapporo, Kanazawa, Tokyo and Seoul), while coal combustion systems such as factories and heaters in Chinese and far-eastern Russian cities (Shenyang, Fushun and Vladivostok) (Lin et al, 2005;Tang et al, 2005;Kakimoto et al, 2002;Tang et al, 2002a, b;Hayakawa et al, 2000;Kakimoto et al, 2000).…”

Section: Introductionmentioning

confidence: 98%

Distribution and Source of Atmospheric Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons in Tieling City, Liaoning Province, a Typical Local City in Northeast China

Tang¹,

Araki²,

Tamura³

et al. 2009

ajae

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Airborne particulates were collected in three different size fractions (¤7 μm; 2.1-7 μm; ⁄2.1 μm) by using Andersen low-volume air samplers at three sites in Tieling city, Liaoning Province, a typical local city in northeast China, in every season during the period from July 2003 to May 2004. Nine polycyclic aromatic hydrocarbons (PAHs) and seven nitropolycyclic aromatic hydrocarbons (NPAHs) in the airborne particulates were determined by HPLC with fluorescence and chemiluminescence detection, respectively. The mean total concentrations of the nine PAHs and seven NPAHs were highest at The mixed residential and light industrial site, and lowest at the residential site near the suburbs. At all sites, more than 70% of the total PAHs and more than 60% of the total NPAHs were found in the finest particulate (⁄2.1 μm) fraction. Both cluster analysis and several diagnostic ratios showed that the major contributors of PAHs and NPAHs in airborne particulates were coal combustion systems such as domestic stoves and coal boilers in all seasons in Tieling city.

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“…14,15) Moreover, 2-NP was not detected in diesel-particulates but was found in the atmosphere. 15 16) However, in countries using large amounts of coal energy, the contributors and behaviors of NPAHs in urban air are not known. Vladivostok, Russia, is a typical city which uses large amounts of coal energy.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Atmospheric Nitropolycyclic Aromatic Hydrocarbons in Vladivostok, Kanazawa and Toyama.

Tang

Tabata

Мишуков

et al. 2002

JOURNAL OF HEALTH SCIENCE

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Airborne particulates were collected simultaneously at Vladivostok, Kanazawa and Toyama. 1,3-, 1,6-, 1,8-Dinitropyrenes (DNPs), 1-, 2-, 4-nitropyrenes (NPs), 2-nitrofluorene and 6-nitrochrysene in the particulates were analyzed by HPLC with chemiluminescence detection. All compounds were detected not only in Kanazawa but also in Vladivostok and Toyama. Moreover, five unknown peaks which might be nitropolycyclic aromatic hydrocarbons were detected only in chromatograms of Vladivostok. The [DNPs]/[1-NP] ratios at all stations were near the value found in diesel-exhaust particulates, suggesting that one of the main contributors of these compounds was dieselengine vehicles not only in Kanazawa and Toyama but also in Vladivostok. However, the difference in traffic volume at two stations in Vladivostok did not have a significant effect on the concentrations of DNPs and NPs in contrast to two stations in Kanazawa. These results suggested sources other than diesel-engine vehicles also contributing to DNPs and NPs in Vladivostok. Seasonal variations similar to those in Kanazawa were observed in Vladivostok and Toyama. As in Kanazawa, the [2-NP]/[1-NP] ratio in Vladivostok was larger at the lighter traffic station than that at heavier traffic station. This suggested that, as in Kanazawa, 2-NP was formed in the atmosphere in Vladivostok.

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Comparison of Atmospheric Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons in Kanazawa, Sapporo and Tokyo

Cited by 45 publications

References 0 publications

Retrospective Analyses of Atmospheric Poly cyclic and Nitropolycyclic Aromatic Hydrocarbons in an Industrial Area of a Western Site of Japan

Retrospective Analyses of Atmospheric Poly cyclic and Nitropolycyclic Aromatic Hydrocarbons in an Industrial Area of a Western Site of Japan

Distribution and Source of Atmospheric Polycyclic Aromatic Hydrocarbons and Nitropolycyclic Aromatic Hydrocarbons in Tieling City, Liaoning Province, a Typical Local City in Northeast China

Comparison of Atmospheric Nitropolycyclic Aromatic Hydrocarbons in Vladivostok, Kanazawa and Toyama.

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