Characteristics of Fugitive Dust Generated from Unpaved Mine Haulage Roads

Organiscak, John A.; Reed, W.R.

doi:10.1080/1389526042000263333

Cited by 32 publications

(32 citation statements)

References 7 publications

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“…The consistency of such an assumption is confirmed by the results of the field study carried out by Organisiak and Reed [24], who found that the majority of dust generated from unpaved and untreated haulage roads is non-respirable and at least 80% of the airborne dust has an aerodynamic diameter size larger than 10 μm. The TSP emission rates determined for the unpaved road on the mineral remediation site are reported in Table 6.…”

Section: Emission Ratessupporting

confidence: 58%

“…The emission factor may be either estimated from measurements taken on-site or in accordance with the haul road dust emission models defined by US EPA AP-42 manual [22]. Organisiak and Reed [24] carried out field studies at a limestone quarry and coal preparation plant, to quantify the fugitive dust emission and dispersion experienced from the transit of haulage trucks along unpaved roads. The results of these studies support the representation of these mobile sources as an area or volume-distributed sources [25] and suggest the definition of an adjusted road width given by the actual road width plus 6 m, to represent the horizontal extent of the wake arising from the transit along the road.…”

Section: Representation Of Mobile Sourcesmentioning

confidence: 99%

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Dust dispersion from haul roads in complex terrain: the case of a mineral reclamation site located in Sardinia (Italy)

Piras

Dentoni

Massacci

et al. 2014

International Journal of Mining, Reclamation and Environment

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In recent years there has been significant research effort to investigate the use of plume dispersion models to assess the environmental impact of fugitive dust emissions from surface mining operations. In particular, the results of these studies have identified challenges to the use of traditional Gaussian plume dispersion models to satisfactorily reproduce fugitive dust dispersion and deposition experienced from low elevation release heights within complex topography. This paper presents a discussion of the results of a preliminary series of modelling studies that have employed the UK-ADMS (Atmospheric Dispersion Modelling System) model to investigate the dust dispersion and deposition from to a former mining site currently undergoing remediation. The remediation site is located within a valley in south western Sardinia that may be considered an aerodynamically complex terrain. A series of field measurement surveys were conducted along the length of an unpaved surface haul truck roadway to measure the PM2.5 and PM10 dust fractions within the emitted plumes. To investigate the potential effects that that the surrounding topography may have on the atmospheric dispersion and deposition experienced a series of UK-ADMS dispersion models were solved for a range of meteorological stability conditions typical of the area under investigation. A preliminary analysis of the results of these simulations concludes that there was a strong influence of the surrounding terrain on the dispersion and deposition phenomena predicted

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Section: Emission Ratessupporting

confidence: 58%

Section: Representation Of Mobile Sourcesmentioning

confidence: 99%

Dust dispersion from haul roads in complex terrain: the case of a mineral reclamation site located in Sardinia (Italy)

Piras

Dentoni

Massacci

et al. 2014

International Journal of Mining, Reclamation and Environment

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show abstract

“…Primarily these are either based upon cyclone based systems (see e.g. Organiscak andReed 2004, Gillies et al 2005) or surface impaction methods including the flat adhesive pad method introduced by Beaman and Kingsbury (1981) and cylindrical directional derivatives. This latter method relies upon the use of optical reflectance methods to derive an effective area coverage (EAC) as a percentage of the total exposed surface area allowing relative measurements to be taken; in the case of cylindrical derivatives, directionality has to be established.…”

Section: Emissions Sampling Methodsmentioning

confidence: 99%

“…The generation of fugitive dust clouds on haul roads can also present a significant operational safety hazard by reducing the truck drivers' visibility along the length of the travelled haul roads and ramps. The results of a recent US-based study have indicated that haul truck operators record one of the highest respirable dust exposure levels amongst the cross-section of the workforce employed at quarries (Organiscak and Reed 2004).…”

Section: Fugitive Dust Emissions From Unpaved Haul Roadsmentioning

confidence: 99%

An investigation into unpaved road emissions from a UK surface limestone quarry using cylindrical adhesive pad collectors and image analysis

Docx

Kingman

Lester

et al. 2007

International Journal of Mining, Reclamation and Environment

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Demand for increased aggregates extraction combined with ongoing pressure to adhere to existing and future environmental regulatory requirements requires sustained research and investigation into associated particulate emissions. Open pit quarries commonly operate 'blast and haul' extraction methods, implying that any increase in production will lead to increases in quarry traffic and hence unpaved haul road particulate emissions. This paper presents an analysis and discussion of experimental data collected during a roadside particulate emission sampling study conducted within a major UK limestone quarry. The particulate samples were collected using a total of six cylindrical adhesive pad type collectors located symmetrically, at equally spaced intervals upwind and downwind of an unpaved truck haul road. A total of three sampling studies were conducted, each representing approximately 1 hour of road activity and between 6 and 8 vehicle passes. The first two sampling periods were conducted on an initially unwetted haul road. The third sampling period was conducted following road wetting by a bowser. The surface characteristics of the haul road surface were obtained by the collection of a series of swept surface material samples. An analysis of these samples collected prior to and during each of the sampling periods established the surface moisture and silt content of the unpaved road surface. Weather data were obtained using a permanently sited metrological station located on a hill above the quarry, together with a portable weather station located upwind of the haul road to providing accurate localized data. The dust samples collected on the adhesive pads were sized using an image analysis (IA) based method. The IA method employed advanced image enhancement functions to characterize the captured particulates in terms of total count, captured mass, particle aspect ratio and size distribution. These characteristics were compared for each collector sample over each of the three sampling periods. The study concluded that the IA method was able to provide a useful and consistent range of sample characteristics, although the limit of the *Corresponding author. resolution of the sizing of the particulates sampled was found to be approximately 5 mm. It was found that there was minimal variation in the sampled particulate size distribution and aspect ratio up to a collection distance of 29 m from the roadside in the downwind direction. A clear attenuation in the capture of particles was identified in terms of particle count and total captured mass reporting to measured upwind background levels at 29 m from source. The directionality of the particulate concentrations collected on the pads was found to vary significantly. It was concluded that IA offers a viable method for the analysis of samples collected from cylindrical adhesive pad collectors.

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“…Organiscak and Reed [9] described the average and instantaneous peak dust levels 30 m from haul roads. The authors also published the results of research related to the evaluation of safe following distance for equipment in order to avoid overexposure to respirable dust from lead trucks [10].…”

mentioning

confidence: 99%

Assessment of Environmental Impact of Drilling Equipment

Lashgari

2013

J Powder Metall Min

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Characteristics of Fugitive Dust Generated from Unpaved Mine Haulage Roads

Cited by 32 publications

References 7 publications

Dust dispersion from haul roads in complex terrain: the case of a mineral reclamation site located in Sardinia (Italy)

Dust dispersion from haul roads in complex terrain: the case of a mineral reclamation site located in Sardinia (Italy)

An investigation into unpaved road emissions from a UK surface limestone quarry using cylindrical adhesive pad collectors and image analysis

Assessment of Environmental Impact of Drilling Equipment

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