THE CONTRIBUTION OF GAS-PHASE REACTIONS TO THE NITROARENE FRACTION OF MOLECULAR-WEIGHT 247 PRESENT IN CARBON PARTICLES SAMPLED IN AN URBAN AREA OF NORTHERN ITALY

被引：17

作者：

CICCIOLI, P ^{[1
]}

CECINATO, A ^{[1
]}

CABELLA, R ^{[1
]}

BRANCALEONI, E ^{[1
]}

BUTTINI, P ^{[1
]}

机构：

[1] ENI RIC,I-00016 MONTEROTONDO,ITALY

来源：

ATMOSPHERIC ENVIRONMENT PART A-GENERAL TOPICS | 1993年 / 27卷 / 08期

关键词：

NITROARENES; NITROFLUORANTHENES; NITROPYRENES; ATMOSPHERIC REACTIONS; GAS-PHASE FORMATION; AMBIENT PARTICULATE ORGANIC MATTER; CARBONACEOUS PARTICLES;

D O I：

10.1016/0960-1686(93)90253-U

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The formation of 2-nitrofluoranthene and 2-nitropyrene by gas-phase atmospheric reactions has been investigated by analysing the nitroarene fraction with molecular weight 247 extracted from 34 high-volume samples collected during two different monitoring campaigns held in the centre of Milan. 2-Nitrofluoranthene, 2-nitropyrene and 1-nitropyrene were the only nitroarenes detected. The ratios 2-nitrofluoranthene/1-nitropyrene and 2-nitrofluoranthene/2-nitropyrene combined with the day/night variations of various photochemical indicators have been used to assess the relative contribution of different reactions leading to the formation of 2-nitroarenes with MW 247 in carbon particles. Daytime OH radical-initiated reactions were found to be mainly responsible for their formation but evidence was collected of nighttime formation.

引用

页码：1261 / 1270

页数：10

共 27 条

[21]

PLATT U, 1985, SEP P WORKSH POLL CY, P82

[22] UBIQUITOUS OCCURRENCE OF 2-NITROFLUORANTHENE AND 2-NITROPYRENE IN AIR [J].