Forest fires in Northern region of Portugal: Impact on PM levels

• Tipo: Artigo em Revista Científica Internacional
• Data: 2013

Autores

Klara Slezakova (Autor) FEUP; Simone Morais (Autor) Outra; Maria do Carmo Pereira (Autor) FEUP

Revista

Título: Atmospheric Research

Vol. 127 Nº June 2013

Páginas: 148-153

ISSN: 0169-8095

Editora: Elsevier

Indexação

ISI Web of Knowledge - 14 Citações

Scopus - 15 Citações

INSPEC

Classificação Científica

FOS: Ciências exactas e naturais > Ciências biológicas

Projetos Associados

UI0511 - PROJECTO ESTRATÉGICO - UI 511 - 2013-2014

Outras Informações

ID Authenticus: P-005-0B1

DOI: 10.1016/j.atmosres.2012.07.012

Abstract (EN): Every year European citizens become victims of devastating fires, which are especially disastrous for Southern European countries. Apart from the numerous health and economic consequences, fires generate hazardous pollutants that are introduced into the environment, thus representing serious risks for public health. In that regard, particulate matter (PM) is of a major concern. Thus, the objectives of this work were to characterize the trend of forest fire occurrences and burnt area during the period of 2005 and 2010 and to study the influence of forest fires on levels of particulate matter PM10 and PM2.5. In 2010, 22,026 forest fires occurred in Portugal. The northern region was the most affected by forest fires, with 27% of occurrences in Oporto district. The annual means of PM10 and PM2.5 concentrations at two urban background sites were 25 +/- 14 mu g m(-3) and 8.2 +/- 4.9 mu g m(-3), and 17 +/- 13 mu g m(-3) and 73 +/- 5.9 mu g m(-3), respectively. At both sites the highest levels of PM fractions were observed during July and August of 2010, corresponding to the periods when majority (66%) of forest fires occurred. Furthermore, PM10 daily limit at the two sites was exceeded during 20 and 5 days, respectively; 56%, and respectively 60% of those exceedances occurred during the forest fire season. Considering that the risks of forest fire ignition and severity are enhanced with elevated temperatures, the climate change might increase the environmental impacts of forest fires.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 6