PMID- 21316827
OWN - NLM
STAT- MEDLINE
DCOM- 20110721
LR  - 20110408
IS  - 1873-6424 (Electronic)
IS  - 0269-7491 (Linking)
VI  - 159
IP  - 5
DP  - 2011 May
TI  - Identification of magnetic particulates in road dust accumulated on roadside snow 
      using magnetic, geochemical and micro-morphological analyses.
PG  - 1266-76
LID - 10.1016/j.envpol.2011.01.030 [doi]
AB  - The aim of this study is to test the applicability of snow surveying in the 
      collection and detailed characterization of vehicle-derived magnetic particles. 
      Road dust extracted from snow, collected near a busy urban highway and a low 
      traffic road in a rural environment (southern Finland), was studied using 
      magnetic, geochemical and micro-morphological analyses. Significant differences 
      in horizontal distribution of mass specific magnetic susceptibility (chi) were 
      noticed for both roads. Multi-domain (MD) magnetite was identified as the primary 
      magnetic mineral. Scanning electron microscope (SEM) analyses of road dust from 
      both roads revealed: (1) angular-shaped particles (diameter approximately -300 mum) mostly 
      composed of Fe, Cr and Ni, derived from circulation of motor vehicles and (2) 
      iron-rich spherules (d approximately 2-70 mum). Tungsten-rich particles (d<2 mum), derived from 
      tyre stud abrasion were also identified. Additionally, a decreasing trend in chi 
      and selected trace elements was observed with increasing distance from the road 
      edge.
CI  - Copyright (c) 2011 Elsevier Ltd. All rights reserved.
FAU - Bucko, Michal S
AU  - Bucko MS
AD  - Division of Geophysics and Astronomy, Department of Physics, P.O. Box 64, Gustaf 
      Hallstromin katu 2, 00014 University of Helsinki, Finland. 
      michal.bucko@helsinki.fi
FAU - Magiera, Tadeusz
AU  - Magiera T
FAU - Johanson, Bo
AU  - Johanson B
FAU - Petrovsky, Eduard
AU  - Petrovsky E
FAU - Pesonen, Lauri J
AU  - Pesonen LJ
LA  - eng
PT  - Comparative Study
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20110212
PL  - England
TA  - Environ Pollut
JT  - Environmental pollution (Barking, Essex : 1987)
JID - 8804476
RN  - 0 (Dust)
RN  - 0 (Vehicle Emissions)
SB  - IM
MH  - Dust/*analysis
MH  - Environmental Monitoring/*methods
MH  - Finland
MH  - *Magnetics
MH  - Microscopy, Electron, Scanning
MH  - Snow/*chemistry
MH  - Vehicle Emissions/*analysis
EDAT- 2011/02/15 06:00
MHDA- 2011/07/22 06:00
CRDT- 2011/02/15 06:00
PHST- 2010/06/02 00:00 [received]
PHST- 2011/01/14 00:00 [revised]
PHST- 2011/01/17 00:00 [accepted]
PHST- 2011/02/15 06:00 [entrez]
PHST- 2011/02/15 06:00 [pubmed]
PHST- 2011/07/22 06:00 [medline]
AID - S0269-7491(11)00052-2 [pii]
AID - 10.1016/j.envpol.2011.01.030 [doi]
PST - ppublish
SO  - Environ Pollut. 2011 May;159(5):1266-76. doi: 10.1016/j.envpol.2011.01.030. Epub 
      2011 Feb 12.