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

• Tipo: Artigo em Revista Científica Internacional
• Data: 2006

Autores

Alvim Ferraz, MCM (Autor) Outra; Sousa, SIV (Autor) FEUP; Pereira, MC (Autor) FEUP; Martins, FG (Autor) FEUP

Revista

Título: Environmental Pollution

Vol. 140 Nº 3

Páginas: 516-524

ISSN: 0269-7491

Editora: Elsevier

Indexação

ISI Web of Knowledge - 34 Citações

ISI Web of Science

Scopus - 39 Citações

Classificação Científica

FOS: Ciências exactas e naturais > Ciências da terra e ciências do ambiente

CORDIS: Ciências Naturais > Ciências do ambiente

Outras Informações

ID Authenticus: P-004-MDC

DOI: 10.1016/j.envpol.2005.07.018

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 9