Modelling and managing critical source areas of diffuse pollution from agricultural land using flow connectivity simulation

Heathwaite, A. Louise; Quinn, Paul; Hewett, Caspar

doi:10.1016/j.jhydrol.2004.07.043

Cited by 263 publications

(182 citation statements)

References 35 publications

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“…Distances between the streets and the receiving waters are short and there are no buffer strips. This results in contamination easily transfered into the receiving water bodies (McDowell et al, 2001;Heathwaite et al, 2005;Lu et al, 2007).…”

Section: Hydrological and Land Use Characteristics Of The Stream Netwmentioning

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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Section: Hydrological and Land Use Characteristics Of The Stream Netwmentioning

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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“…To moderate the number of watercourses failing to produce ecologically sustainable habitats as a result of enhanced erosion and delivery of pollutants to sensitive headwater fluvial networks, identification of the fine sediment and nutrient sources, and the pathways of delivery is firstly required , with management efforts subsequently focussing on restoring natural attenuation within catchments and disconnecting the identified Critical Source Areas (CSAs), or hot-spots from the fluvial networks (Heathwaite et al, 2005;Kovacs et al, 2012;Newson, 2010;Pionke et al, 1996). Many well established factors act to define the CSAs of fine sediment and P, however, our understanding of how and when these areas are connected to the fluvial networks is limited by the heterogeneity of factors governing process rates (Dean et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Dominant mechanisms for the delivery of fine sediment and phosphorus to fluvial networks draining grassland dominated headwater catchments

Perks

Owen

Benskin

et al. 2015

Science of The Total Environment

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. (2015) 'Dominant mechanisms for the delivery of ne sediment and phosphorus to uvial networks draining grassland dominated headwater catchments.', Science of the total environment., 523 . pp. 178-190. Further information on publisher's website: Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details.

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“…Identifying and prioritizing critical source areas could greatly improve the efficiency of RDS washoff pollution controls. Index models have been widely used for identifying diffuse critical source areas of phosphorus (P) on farms, and are less likely than other models to be constrained by a lack of input data (Heathwaite et al, 2005;Sharpley et al, 2008). Index models allow critical source areas to be identified by quantifying the relative pollution risk (e.g., as a probability) as opposed to the actual pollutant loading, because it is difficult to quantify transport factors (Buczko and Kuchenbuch, 2007;Buchanan et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Index models to evaluate the potential metal pollution contribution from washoff of road-deposited sediment

Zhao

Zhao²,

Yin

et al. 2014

Water Research

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Modelling and managing critical source areas of diffuse pollution from agricultural land using flow connectivity simulation

Cited by 263 publications

References 35 publications

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

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

Dominant mechanisms for the delivery of fine sediment and phosphorus to fluvial networks draining grassland dominated headwater catchments

Index models to evaluate the potential metal pollution contribution from washoff of road-deposited sediment

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