Nitrated-PAH in urban air of Italy as indicators of motor vehicle emission and light-induced reactions

被引：11

作者：

Cecinato, A

Mabilia, R

Brachetti, A

Di Filippo, P

Liberti, A

机构：

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

[2] DIPIA, ISPESL, I-00040 Monte Porzio Catone, RM, Italy

[3] Univ Rome La Sapienza, I-00185 Rome, Italy

来源：

ANALYTICAL LETTERS | 2001年 / 34卷 / 06期

关键词：

atmospheric aerosols; polynuclear aromatic hydrocarbons (PAH); nitrated-PAH (NPAH); ambient pollution; human health;

D O I：

10.1081/AL-100103603

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The presence of particle-bound nitrated PAH (NPAH) in the atmosphere has been observed in urban areas of Italy. Milan appeared to be the most polluted city. Sites of different nature were investigated in Rome and its outskirts. Particle-bound NPAH were modulated not only in concentration, but also in the relative content of homologues, according to emission and in-situ generation mechanisms influencing the site. Despite that, direct release from motor vehicles was found less important than degradation of PAH with respect to the presence of NPAH in the atmosphere. Concentrations of NPAH seemed to be capable to affect ambient air quality, due to strong mutagenicity of selected congeners.

引用

页码：927 / 936

页数：10

共 16 条

[1] THE FORMATION OF NITRO-PAH FROM THE GAS-PHASE REACTIONS OF FLUORANTHENE AND PYRENE WITH THE OH RADICAL IN THE PRESENCE OF NOX [J].