Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/2920
Authors: | Szonyi, M.* Sagnotti, L.* Hirt, A. M.* |
Title: | On leaf magnetic homogeneity in particulate matter biomonitoring | Journal: | Geophysical Research Letters | Series/Report no.: | /34(2007) | Publisher: | AGU | Issue Date: | 2007 | DOI: | 10.1029/2006GL029076 | Keywords: | environmental magnetism hysteresis properties |
Subject Classification: | 04. Solid Earth::04.05. Geomagnetism::04.05.08. Instruments and techniques | Abstract: | Biomonitoring of magnetic properties of tree leaves has been postulated to be a good approach to measure particulate matter (PM) pollution levels. We studied the variation of magnetic hysteresis parameters on leaves of Quercus ilex, an evergreen oak previously used for magnetic biomonitoring of air pollution in Rome (Italy). The hysteresis parameters (MRS, MS, BCR and BC) measured on specimens collected at a close spacing on the surface of two single leaves show variances that are smaller than those observed on a collection of Q. ilex leaves sampled from several trees distributed along high-traffic roads. The variability is higher for magnetizations than for coercivities. This suggests a uniform source for the magnetic particles, such that variations are due mainly to changes in concentration. The normalized hysteresis cycles are remarkably similar for all the specimens. Normalization of magnetic moments by mass appears however more efficient than normalization by volume. |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | Existing users please Login |
---|---|---|---|---|
szoenyi et al_2006GL029076.pdf | Main article | 664.7 kB | Adobe PDF |
WEB OF SCIENCETM
Citations
16
checked on Feb 10, 2021
Page view(s)
115
checked on Apr 17, 2024
Download(s)
22
checked on Apr 17, 2024