Determination of phase-distributed PAH in Rome ambient air by denuder/GC-MS method

被引：91

作者：

Possanzini, M ^{[1
]}

Di Palo, V ^{[1
]}

Gigliucci, P ^{[1
]}

Concetta, M ^{[1
]}

Scianò, T ^{[1
]}

Cecinato, A ^{[1
]}

机构：

[1] CNR, Ist Inquinamento Atmosfer, I-00016 Monterotondo, RM, Italy

来源：

ATMOSPHERIC ENVIRONMENT | 2004年 / 38卷 / 12期

关键词：

PAH; annular denuder; urban atmosphere; gas-particle partitioning;

D O I：

10.1016/j.atmosenv.2003.12.024

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

An annular denuder filter sampler has been tested for determination of both gaseous and particulate polycyclic aromatic hydrocarbons (PAH) in air. Collection efficiency and capacity over 6-h sampling at an air flow rate of 61 min(-1) were assessed. Concentrations were measured and phase distributions of the most important 2-6 ring PAH in air samples collected in downtown Rome during November 2002 to April 2003 were determined. The 2- and 3-ring PAH were found for more than 90% in the gas phase, whilst congeners with more than 4 rings were present almost entirely in the particle phase. Comparison with a high-volume filter-PUF sampler showed that similar results for total PAH contents (gas + particle) were observed only for congeners with molecular mass higher than 178 (phenanthrene and anthracene). (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1727 / 1734

页数：8

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