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Factors affecting atmospheric 1-, 2-nitropyrenes and 2-nitrofluoranthene in winter at Noto peninsula, a remote background site, Japan.

Chemosphere (2014-02-11)
Ning Tang, Kousuke Sato, Takahiro Tokuda, Michiya Tatematsu, Hirotaka Hama, Chikako Suematsu, Takayuki Kameda, Akira Toriba, Kazuichi Hayakawa
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.

MATERIALS
Product Number
Brand
Product Description

Sigma-Aldrich
1-Nitropyrene, ≥95%
1-Nitropyrene, BCR®, certified reference material

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