Atmospheric pollutants in peri-urban forests of Quercus ilex : evidence of pollution abatement and threats for vegetation
García-Gómez, Héctor (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya))
Aguillaume Rodríguez-O'connor, Laura (Centre de Recerca Ecològica i d'Aplicacions Forestals)
Izquieta-Rojano, Sheila (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Valiño, Fernando (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya))
Àvila i Castells, Anna (Universitat Autònoma de Barcelona)
Elustondo, David (Universidad de Navarra. Laboratorio Integrado de Calidad Ambiental)
Santamaría Ulecia, Jesús Miguel (Universidad de Navarra. Laboratorio Integrado de Calidad Ambiental)
Alastuey, Andrés (Institut de Diagnosi Ambiental i Estudis de l'Aigua)
Calvete-Sogo, Héctor (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya))
González-Fernández, Ignacio (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya))
Alonso, Rocío (Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas (Espanya))

Fecha:	2016
Resumen:	Peri-urban vegetation is generally accepted as a significant remover of atmospheric pollutants, but it could also be threatened by these compounds, with origin in both urban and non-urban areas. To characterize the seasonal and geographical variation of pollutant concentrations and to improve the empirical understanding of the influence of Mediterranean broadleaf evergreen forests on air quality, four forests of Quercus ilex (three peri-urban and one remote) were monitored in different areas in Spain. Concentrations of nitrogen dioxide (NO₂), ammonia (NH₃), nitric acid (HNO₃) and ozone (O₃) were measured during 2 years in open areas and inside the forests and aerosols (PM₁₀) were monitored in open areas during 1 year. Ozone was the only air pollutant expected to have direct phytotoxic effects on vegetation according to current thresholds for the protection of vegetation. The concentrations of N compounds were not high enough to directly affect vegetation but could be contributing through atmospheric N deposition to the eutrophization of these ecosystems. Peri-urban forests of Q. ilex showed a significant below-canopy reduction of gaseous concentrations (particularly NH₃, with a mean reduction of 29-38 %), which indicated the feasibility of these forests to provide an ecosystem service of air quality improvement. Well-designed monitoring programs are needed to further investigate air quality improvement by peri-urban ecosystems while assessing the threat that air pollution can pose to vegetation.
Ayudas:	European Commission 282910 European Commission LIFE13/ENV/ES/000417 Ministerio de Ciencia e Innovación CGL2009-13188-C03-02
Derechos:	Tots els drets reservats.
Lengua:	Anglès
Documento:	Article ; recerca ; Versió acceptada per publicar
Materia:	Aerosols ; Atmospheric pollution ; Ecosystem services ; Mediterranean vegetation ; Nitrogen ; Ozone
Publicado en:	Environmental science and pollution research, Vol. 23, issue 7 (Apr. 2016) , p. 6400-6413, ISSN 0944-1344

DOI: 10.1007/s11356-015-5862-z

Post-print 27 p, 1001.3 KB

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Documentos de investigación > Documentos de los grupos de investigación de la UAB > Centros y grupos de investigación (producción científica) > Ciencias > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals)
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