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Rapid magnetic biomonitoring and differentiation of atmospheric particulate pollutants at the roadside and around two major industrial sites, U.K..

Hansard, Ruth and Maher, Barbara and Kinnersley, Rob (2012) Rapid magnetic biomonitoring and differentiation of atmospheric particulate pollutants at the roadside and around two major industrial sites, U.K.. Environmental Science and Technology, 46 (8). pp. 4403-4410. ISSN 0013-936X

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Abstract

Emissions of particulate matter (PM) from vehicle and industrial sources constitute a hazard to human health. Here, we apply biomagnetic monitoring to a) discriminate between potential PM10 sources around a steelworks, and b) examine magnetic source differentiation for a combined, U.K.-based, magnetic dataset (steelworks, roadside, power-generating site). Tree leaves (sampled September 2009, as passive PM receptors) and putative sources were subjected to rapid magnetic characterisation (magnetic remanence measurements). Fuzzy cluster analysis of the combined dataset identified three clusters, showing that particulates emitted from vehicle fleets (e.g. diesel/petrol), and from different industrial processes can be magnetically differentiated. Cluster analysis of the steelworks leaf receptors and potential sources identified seven magnetic groupings. Leaves from one PM ‘hotspot’ showed no affinity with any available source sample, suggesting an as yet untested PM source. These data indicate the value of fast, inexpensive magnetic techniques for particulate source discrimination and indication of ‘missing’ sources.

Item Type: Article
Journal or Publication Title: Environmental Science and Technology
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Departments: Faculty of Science and Technology > Lancaster Environment Centre
ID Code: 53638
Deposited By: ep_importer_pure
Deposited On: 23 Apr 2012 09:18
Refereed?: Yes
Published?: Published
Last Modified: 09 Apr 2014 23:20
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/53638

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