Characteristics of iron-containing magnetic particles in household dust from an urban area: A case study in the megacity of Shanghai

Characteristics of iron-containing magnetic particles in household dust from an urban area: A case study in the megacity of Shanghai

In order to characterize the magnetic properties and trace sources of household dust particles, magnetic measurements, geochemical and SEM/TEM analyses were performed on vacuum dust from 40 homes in Shanghai, China. Iron-containing magnetic particles (IMPs) in the household dust were dominated by ma...

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Veröffentlicht in:Journal of hazardous materials 2022-02, Vol.424 (Pt A), p.127212-127212, Article 127212
Hauptverfasser: Chen, Yinglu, Zhang, Weiguo, Dong, Chenyin, Hutchinson, Simon M., Feng, Huan
Format: Artikel
Sprache:eng
Schlagworte:
China
Cities
Dust - analysis
Environmental Monitoring
Indoor environment
Industrial activity
Iron
Magnetic minerals
Magnetic Phenomena
Metallurgy
Metals, Heavy - analysis
Source identification
Traffic emission
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Zusammenfassung:In order to characterize the magnetic properties and trace sources of household dust particles, magnetic measurements, geochemical and SEM/TEM analyses were performed on vacuum dust from 40 homes in Shanghai, China. Iron-containing magnetic particles (IMPs) in the household dust were dominated by magnetite, while maghemite, hematite and metallic iron were also present. The IMPs were mainly composed of coarse-grained particles (e.g., >0.1 µm). Ultrafine superparamagnetic (SP) grains (
ISSN:0304-3894
1873-3336
DOI:10.1016/j.jhazmat.2021.127212