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Leaf saturation isothermal remanent magnetization (SIRM) as a proxy for particulate matter monitoring: inter-species differences and in-season variation.

Kardel, Fatemeh and Wuyts, Karen and Maher, Barbara and Hansard, Ruth and Samson, Roeland (2011) Leaf saturation isothermal remanent magnetization (SIRM) as a proxy for particulate matter monitoring: inter-species differences and in-season variation. Atmospheric Environment: Part A - General Topics, 45 (29). pp. 5164-5171. ISSN 0960-1686

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Abstract

In recent studies, the saturation isothermal remanent magnetization (SIRM) of leaves has been used for monitoring of atmospheric particulate matter. This study examined leaf SIRM of tree species with different leaf surface characteristics in the urban environment of Gent (Belgium). Leaf SIRM was measured from co-located trees of Carpinus betulus (with ‘hairy’ leaves) and Tilia sp. (‘non-hairy’ leaves) at locations with contrasting traffic density (and particulate pollution level). The measurements were conducted twice during the growing season (June and September 2009). The highest SIRM values were observed for C. betulus, and the lowest for the non-hairy Tilia sp. leaves. The SIRM was significantly higher in locations with high traffic density and in September. Differences between species were independent of pollution level and sampling time, except between hairy and non-hairy Tilia sp. Monthly measurements of leaf SIRM on Tilia platyphyllos and C. betulus trees revealed high in-season variation, which may be due to a combination of short and long-term leaf surface processes. It is concluded that the leaf SIRM, a proxy for particulate matter deposition, depends on leaf surface structure, leaf maturity, and particulate pollution level.

Item Type: Article
Journal or Publication Title: Atmospheric Environment: Part A - General Topics
Uncontrolled Keywords: Biomonitoring ; Habitat quality ; Magnetic properties ; SIRM ; Particulate matter ; Urban trees
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 53640
Deposited By: ep_importer_pure
Deposited On: 23 Apr 2012 09:26
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:20
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/53640

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