Contribution of anthropogenic pollutants to the increase of tropospheric ozone levels in the Oporto Metropolitan Area, Portugal since the 19th century

被引：43

作者：

Alvim-Ferraz, MCM ^{[1
]}

Sousa, SIV ^{[1
]}

Pereira, MC ^{[1
]}

Martins, FG ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, LEPAE, Dept Engn Quim, P-4200465 Oporto, Portugal

来源：

ENVIRONMENTAL POLLUTION | 2006年 / 140卷 / 03期

关键词：

time-series; Schonbein method; photochemical production; meteorological parameters; seasonal variation;

D O I：

10.1016/j.envpol.2005.07.018

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The main purpose of this study was to evaluate the contribution of anthropogenic pollutants to the increase of tropospheric ozone levels in the Oporto Metropolitan Area (Portugal) since the 19th century. The study was based on pre-industrial and recent data series, the results being analyzed according to the atmospheric chemistry. The treatment of ozone and meteorological data was performed by classical statistics and by time-series analysis. It was concluded that in the 19th century the ozone present in the troposphere was not of photochemical origin, being possible to consider the respective concentrations as reference values. For recent data a cycle of 8 h for ozone concentrations could be related to traffic. Compared to the 19th century, the current concentrations were 147% higher (252% higher in May) due to the increased photochemical production associated with the increased anthropogenic emissions. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：516 / 524

页数：9

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