中国の瀋陽,上海及び福州における大気中多環芳香族炭化水素類の地域間差

フォーマット:

論文

責任表示:

唐, 寧 ; 伊崎, 陽彦 ; 徳田, 貴裕 ; 季, 若男 ; 董, 麗君 ; 呉, 慶 ; 周, 志俊 ; 黄, 蓉 ; 林, 振宇 ; 亀田, 貴之 ; 鳥羽, 陽 ; 島, 正之 ; 早川, 和一

言語:

日本語

出版情報:

日本分析化学会 = The Japan Society for Analytical Chemistry, 2013-01-01

著者名:

唐, 寧

伊崎, 陽彦

徳田, 貴裕

季, 若男

董, 麗君

呉, 慶

周, 志俊

黄, 蓉

林, 振宇

亀田, 貴之

鳥羽, 陽

島, 正之

早川, 和一

続きを見る

掲載情報:

分析化学 = BUNSEKI KAGAKU

ISSN:

0525-1931      

巻:

62

通号:

4

開始ページ:

267

終了ページ:

273

バージョン:

publisher

概要:

Urban air contains various kinds of organic pollutants. Among them, several polycyclic aromatic hydrocarbons (PAHs) and nitropolycyclic aromatic hydrocarbons (NPAHs) are carcinogenic and/or endocrine disrupting. PAHs and NPAHs in the atmosp … here mainly originate from imperfect combustion of organic matter, such as petroleum and coal. In this study, total suspended particles (TSP) were collected in three different particulate size fractions by using Andersen low-volume air samplers in Shenyang, Shanghai and Fuzhou, China, in the winter and summer seasons in 2010. Nine PAHs and twelve NPAHs in the extracts from the TSP were analyzed by HPLC with fluorescence detection and chemiluminescence detection, respectively. The mean concentrations of the sums of the nine PAHs and twelve NPAHs were highest in Shenyang and lowest in Fuzhou. In each city, more than 80% of the total PAHs and total NPAHs were found in the fine particulate fraction (<2.1 μm). All PAHs and NPAHs were clearly higher in the winter than in the summer. Furthermore, the ratio of the molar concentrations of 1-nitropyrene to pyrene ([1-NP]/[Pyr]), which is a suitable indicator to estimate the contribution of diesel-engine vehicles and coal combustion to urban TSP, were smaller in Shenyang in the winter. However, in Shanghai, Fuzhou and Shenyang (summer), the [1-NP]/[Pyr] ratios were close to those of particulates released from diesel-engine automobiles. Our study showed that the major contributors of atmospheric PAHs and NPAHs were diesel-engine vehicles both in the winter and the summer in Shanghai and Fuzhou, and in the summer in Shenyang. However, in the winter in Shenyang, atmospheric PAHs and NPAHs seemed to be affected by the mixture of coal combustion systems, such as coal heating and diesel-engine vehicles. 2010年の冬季及び夏季に中国の東部に位置する瀋陽，上海及び福州で総浮遊粒子状物質をアンダーセン式ローボリウムエアサンプラーを用いて粒径別（＜2.1 μm，2.1～7 μm，＞7 μm）に捕集した．強い発がん性または内分泌かく乱性を有する9種の多環芳香族炭化水素（PAH）と12種のニトロ多環芳香族炭化水素（NPAH）をそれぞれ高速液体クロマトグラフ（HPLC）蛍光検出法，HPLC化学発光検出法で分析した．その結果，3都市の大気中PAH，NPAH濃度はいずれも冬高夏低の季節変動を呈し，また季節によらず瀋陽で最も高く，福州で最も低いことが分かった．また3都市の大気中PAH，NPAHの80％ 以上は呼吸器への沈着率の高い微小粒子画分（＜2.1 μm）に存在した．さらに，大気中PAH，NPAHの主要発生源の識別マーカーであるピレンに対する1-ニトロピレン濃度比を3都市で比較した結果，上海，福州及び夏季の瀋陽の大気中PAH，NPAHの主要発生源がディーゼル車であり，冬季の瀋陽はディーゼル車と石炭暖房施設の両方であることが明らかになった． 続きを見る

URL:

http://hdl.handle.net/2297/36937