title: Factors affecting atmospheric 1-, 2-nitropyrenes and 2-nitrofluoranthene in winter at Noto peninsula, a remote background site, Japan.
abstract: Airborne particulates were collected at a background site (Wajima Air Monitoring Station; WAMS) on the Noto Peninsula, Japan from January 2006 to December 2007. 1-, 2-nitropyrenes (1-, 2-NPs) and 2-nitrofluoranthene (2-NFR), in the particulates were determined with a sensitive HPLC method with chemiluminescence detection. The average concentrations were higher in winter than in summer. A meteorological analysis indicated that the air samples collected in winter were transported mainly from Northeast China over the Japan Sea. Both the concentration ratios of 2-NFR to 1-NP and 1-NP to pyrene were similar to those in Shenyang in Northeast China which located along the air transportation route to WAMS, but not in Kanazawa which near WAMS. These results strongly suggest that most of the atmospheric 1-, 2-NPs and 2-NFR at WAMS in winter were long range transported from Northeast China.
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan. Electronic address: tou@p.kanazawa-u.ac.jp.
authors: Ning
authors: N
authors: Tang
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors: Kousuke
authors: K
authors: Sato
authors: Ishikawa Prefectural Institute of Public Health and Environmental Science, 1-11, Taiyogaoka, Kanazawa 920-1154, Japan.
authors: Takahiro
authors: T
authors: Tokuda
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors: Michiya
authors: M
authors: Tatematsu
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors: Hirotaka
authors: H
authors: Hama
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors: Chikako
authors: C
authors: Suematsu
authors: Graduate School of Energy Science, Kyoto University, Gokasho, Uji 611-0011, Japan.
authors: Takayuki
authors: T
authors: Kameda
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors: Akira
authors: A
authors: Toriba
authors: Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
authors: Kazuichi
authors: K
authors: Hayakawa
mesh_terms: D001272:Atmosphere / Q000737:chemistry*; D002681:China; D005449:Fluorenes / Q000032:analysis* / Q000737:chemistry; D007564:Japan; D008685:Meteorological Concepts; D052638:Particulate Matter / Q000032:analysis* / Q000737:chemistry; D011721:Pyrenes / Q000032:analysis* / Q000737:chemistry; D012621:Seasons; D001335:Vehicle Emissions / Q000032:analysis
chemical_list: D005449:Fluorenes; D052638:Particulate Matter; D011721:Pyrenes; D001335:Vehicle Emissions; C049029:2-nitropyrene; C049030:2-nitrofluoranthene; C032668:1-nitropyrene
keywords: Air pollutant; Long range transportation; NPAH; Northeast Asia; PAH