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

• Type: Article in International Scientific Journal
• Date: 2013

Authors

Klara Slezakova (Author) FEUP; Simone Morais (Author) Other; Maria do Carmo Pereira (Author) FEUP

Journal

Title: Atmospheric Research

Vol. 127 No. June 2013

Pages: 148-153

ISSN: 0169-8095

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 15 Citations

INSPEC

Scientific classification

FOS: Natural sciences > Biological sciences

Associated Projects

UI0511 - PROJECTO ESTRATÉGICO - UI 511 - 2013-2014

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6