Size- and density-distributions and sources of polycyclic aromatic hydrocarbons in urban road dust

Murakami, Michio; Nakajima, Fumiyuki; Furumai, Hiroaki

doi:10.1016/j.chemosphere.2005.04.003

Cited by 118 publications

(50 citation statements)

References 19 publications

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“…ACY <0.25 mg/kg dw, CHY <0.037, BaP <0.01, DBA <0.01, and INP <0.034. Similar differences between sites were previously reported, such as Murakami et al (2005) who studied the PAH content in road dust in Japan for a residential area and a heavy traffic area and found a significant difference in the PAH profiles between both locations rather than between size-fraction, density-fraction and period of sampling. Lau and Stenstrom (2005) showed that street particles in a residential area had lower concentrations than commercial, road and industrial land use.…”

Section: Pah Concentration In Different Areassupporting

confidence: 68%

Polycyclic Aromatic Hydrocarbons (PAH) in Water and Sediment from Gully Pots

Karlsson

Viklander

2007

Water Air Soil Pollut

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A gully pot is often cleaned with the help of an eductor truck, which uses hydrodynamic pressure and a vacuum to loosen and remove the solids and standing liquid from a gully pot. This paper considers the polycyclic aromatic hydrocarbons (PAH) content in the gully pot mixture (water and sediment) after it has been discharged from the eductor truck. The results show that most PAH was attached to particles, and the dissolved phase represented approximately 22% of the total water concentration. No significant difference was found for the water phase between a housing area and a road, whereas a significant difference was found for NAP, ACE, FL, ANT, FLR, PYR, BaF, and BPY in the sediment at a 95% confidence level. Source identification showed that the PAH in the gully pot mixture came from mixed sources. Both the water and sediment phase exceed all or some of the compared guidelines. The result from this paper shows that not only the sediment needs to be discussed, but also the water phase created during the maintenance of different BMPs.

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Section: Pah Concentration In Different Areassupporting

confidence: 68%

Polycyclic Aromatic Hydrocarbons (PAH) in Water and Sediment from Gully Pots

Karlsson

Viklander

2007

Water Air Soil Pollut

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“…Smaller street dust particles have higher PAH and organic contents due to their greater specific surface area which favors the adsorption of pollutants (Roger et al, 1998). The smaller particles have greater PAH concentrations in the street area since they have less density, higher mobility and less settleability (Aryal et al, 2005;Murakami et al, 2005). This infers that the smaller particles are more likely to be washed by urban runoff and pose a greater risk to the receiving water body.…”

Section: Potential Risks Of Street Dust Particles To Receiving Watermentioning

confidence: 90%

“…However, previous studies of the particle size distribution of street dust did not involve patterns of land use, nor the wash off of street dust to the stream network. Little information is available on the PAHs distribution in the different size-fractions of street dust particles in stream networks and their environmental impacts, although urban runoff has been recognized as an important PAHs pathway in sedimentation (Krein and Schorer, 2000;Brenner et al, 2002;Murakami et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

Size distribution and diffuse pollution impacts of PAHs in street dust in urban streams in the Yangtze River Delta

Zhao

Yin

Chen

et al. 2009

Journal of Environmental Sciences

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Particles of dust washed off streets by stormwater are an important pathway of polyaromatic hydrocarbons (PAHs) into urban streams. This article presented a comprehensive assessment of the size distribution of PAHs in street dust particles, the potential risks of the particles in urban streams, and the sources and sinks of PAHs in the stream network. This assessment was based on measurements of 16 PAHs from the USEPA priority list in street dust particles and river sediments in Xincheng, China. The content of total PAHs ranged from 1629 to 8986 μg/kg in street dust particles, where smaller particles have a higher concentrations. Approximately 55% of the total PAHs were associated with particles less than 250 μm which accounted for 40% of the total mass of street dust. The PAH quantities increased from 2.41 to 46.86 μg/m 2 in the sequence of new residential, rising through main roads, old town residential, commercial and industrial areas. The sediments in stream reaches in town were found to be sinks for street dust particle PAHs. The research findings suggested that particle size, land use and the hydrological conditions in the stream network were the factors which most influenced the total loads of PAH in the receiving water bodies.

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“…The results above implied that consideration of particle grain size helped better understand metal risk. In addition, the RDS grain size had an important influence on the mobility of particles and their associated pollutant concentrations (Roger et al, 1998;Murakami et al, 2005;Deletic and Orr, 2009). The amount was another critical factor affecting RDS potential pollutants contribution to water.…”

Section: Discussionmentioning

confidence: 99%

Risk assessment of metals in road-deposited sediment along an urban–rural gradient

Zhao

2013

Environmental Pollution

112

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a b s t r a c tWe applied the traditional risk assessment methods originally designed for soils and river sediments to evaluation of risk associated with metals in road-deposited sediment (RDS) along an urbanerural gradient that included central urban (UCA), urban village (UVA), central suburban county (CSA), rural town (RTA), and rural village (RVA) areas in the Beijing metropolitan region. A new indicator RI RDS was developed which integrated the RDS characteristics of mobility, grain size and amount with the potential ecological risk index. The risk associated with metals in RDS in urban areas was generally higher than that in rural areas based on the assessment using traditional methods, but the risk was higher in urban and rural village areas than the areas with higher administration units based on the indicator RI RDS . These findings implied that RDS characteristics variation with the urbanerural gradient must be considered in metal risk assessment and RDS washoff pollution control.

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Size- and density-distributions and sources of polycyclic aromatic hydrocarbons in urban road dust

Cited by 118 publications

References 19 publications

Polycyclic Aromatic Hydrocarbons (PAH) in Water and Sediment from Gully Pots

Polycyclic Aromatic Hydrocarbons (PAH) in Water and Sediment from Gully Pots

Size distribution and diffuse pollution impacts of PAHs in street dust in urban streams in the Yangtze River Delta

Risk assessment of metals in road-deposited sediment along an urban–rural gradient

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