Magnetic properties of road dust from Visakhapatnam (India)––relationship to industrial pollution and road traffic

Goddu, Srinivasa Rao; Appel, Erwin; Jordanova, Diana; Wehland, Florian

doi:10.1016/j.pce.2004.02.002

Cited by 119 publications

(58 citation statements)

References 14 publications

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“…Despite the relatively large predominant size (2-20 μm) of spherules observed in this study, we attribute them to the tailpipe emissions as they occur along the roadside trees which are far away from industrial sources. Possibility of generation of large-sized particles through combustion in vehicles is also supported by recent findings of: (i) large-sized magnetite (up to 8 μm diameter) formed by burning FeS 2 containing fossil fuel (Flanders, 1999); and (ii) a significant amount of 7-50 μm (with a maximum of 300 μm) sized spherules in road dust from Visakhapatnam in India (Goddu et al, 2004). Most of the euhedral to subhedral grains yielding magnetite-like mineralogy are attributed to lithogenic origin (Gautam et al, 2004b).…”

Section: Discussionmentioning

confidence: 58%

Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal

Gautam

Blaha

Appel

2005

Atmospheric Environment

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157

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Section: Discussionmentioning

confidence: 58%

Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal

Gautam

Blaha

Appel

2005

Atmospheric Environment

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157

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“…Physical characterization of common inhalable combustion products from organic matters, like fuels, cigarettes, etc., are of importance in relation to environmental pollution (Silva et al 2009;Wahlin et al 2006;Neal 2005;Stroink 1985) as well as environmental magnetism (Rao Goddu et al 2004;Muxworthy et al 2002;Shu et al 2001;Flanders 1994;Hay et al 1997;Petrovsky and Elwood 1997). Particulate matters (PMs), which originated from combustion, entering into our body can be classified as coarse, fine, and ultrafine depending upon their particle size, while the ultrafine particles with typical dimension of nanometer-length scale are most hazardous (Wahlin et al 2006).…”

Section: Introductionmentioning

confidence: 99%

A preliminary study on the nature of particulate matters in vehicle fuel wastes

Bhattacharjee

Mandal

Roy

et al. 2010

Environ Monit Assess

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Powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and tunneling electron microscopy (TEM) studies of two solid vehicle wastes (pollutants) from petrol- and diesel-fueled engines of Kolkata (India) have detected a significant amount of ultrafine particles in the nanometer scale in these wastes. Both powder XRD and selected area electron diffraction from TEM have confirmed the existence of inhomogeneous distribution of nanocrystallites in these pollutants. Energy dispersive X-ray spectrometry shows that these wastes contain mainly carbon and oxygen as the constituent components. These pollutants are magnetic in nature as seen with SQUID magnetometry, and the presence of a high amount of carbon presumably is likely the origin of the magnetic property.

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“…Mapping of the spatial distribution of pollution on contaminated surfaces is a primary prerequisite for further remedy and recovery efforts. To date, only limited data on magnetic measurements as a proxy of industrial contamination is available in the India (Goddu et al 2004). In general, soil or sediment monitoring employs chemical analysis of heavy metals concentrations which is relatively costly, therefore an alternative inexpensive method using the magnetic properties of soils can provide rapid data suitable for 2-D and/or 3-D mapping of contaminated areas.…”

Section: Introductionmentioning

confidence: 99%

Magnetic mapping of fly-ash pollution and heavy metals from soil samples around a point source in a dry tropical environment

Sharma

Tripathi

2007

Environ Monit Assess

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The Singrauli region in the southeastern part of Uttar Pradesh, India is one of the most polluted industrial sites of Asia. It encompasses 11 open cast coal mines and six thermal power stations that generate about 7,500 MW (about 10% of India's installed generation capacity) electricity. Thermal power plants represent the main source of pollution in this region, emitting six million tonnes of fly-ash per annum. Fly-ash is deposited on soils over a large area surrounding thermal power plants. Fly-ashes have high surface concentrations of several toxic elements (heavy metals) and high atmospheric mobility. Fly ash is produced through high-temperature combustion of fossil fuel rich in ferromagnetic minerals. These contaminants can be identified using rock-magnetic methods. Magnetic susceptibility is directly linked to the concentration of ferromagnetic minerals, primarily high values of magnetite. In this study, magnetic susceptibility of top soil samples collected from surrounding areas of a bituminous-coal-fired power plant were measured to identify areas of high emission levels and to chart the spatial distribution of airborne solid particles. Sites close to the power plant have shown higher values of susceptibility that decreases with increasing distance from the source. A significant correlation between magnetic susceptibility and heavy metal content in soils is found. A comparison of the spatial distribution of magnetic susceptibility with heavy-metal concentrations in soil samples suggests that magnetic measurements can be used as a rapid and inexpensive method for proxy mapping of air borne pollution due to industrial activity.

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Magnetic properties of road dust from Visakhapatnam (India)––relationship to industrial pollution and road traffic

Cited by 119 publications

References 14 publications

Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal

Magnetic susceptibility of dust-loaded leaves as a proxy of traffic-related heavy metal pollution in Kathmandu city, Nepal

A preliminary study on the nature of particulate matters in vehicle fuel wastes

Magnetic mapping of fly-ash pollution and heavy metals from soil samples around a point source in a dry tropical environment

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