Autocatalyst-derived platinum, palladium and rhodium (PGE) in infiltration basin and wetland sediments receiving urban runoff

Whiteley, J.D.; Murray, Frank

doi:10.1016/j.scitotenv.2004.09.030

Cited by 48 publications

(26 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Lesniewska et al 2004;Morcelli et al 2005;Hooda et al 2007;Cicchella et al 2008), sediments (e.g. Rauch et al 2004a;Whiteley and Murray 2005), and roadside vegetation (e.g. Zechmeister et al 2006;Hooda et al 2008).…”

Section: Introductionmentioning

confidence: 99%

The characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: a case study in the Pearl River Delta region, South China

Zhou

Zhao

et al. 2010

Environ Earth Sci

View full text Add to dashboard Cite

The emission of platinum group elements (PGE) from automobile catalytic converters has led to enrichment of PGE in road dusts and roadside soils in urban areas that are well above the natural background levels. This paper evaluates the source of contamination of all the PGE and Au in road dusts and roadside soils in the Pearl River Delta region, including three major cities, Shenzhen, Guangzhou and Hong Kong, South China. Samples were digested using Carius tube and analyzed by isotope dilution ICP-MS; Os was separated by distillation and other PGE by Te-coprecipitation. All samples have elevated PGE concentrations above the background values of uncontaminated soils and contain higher Pt, Pd and Rh than other PGE. The maximum values are 181 ng/g Pt, 514 ng/g Pd, 53 ng/g Rh and 1345 ng/g Au. There are clear positive correlations between Pt and Pd, Pt and Rh, and Pd and Rh, indicating that the main emitted of PGE from automobile catalyst are Pt, Pd and Rh. High concentrations of Au were also found in road dust samples from Hong Kong and Shenzhen. Dust samples with higher Os contents have lower 187 Os/ 188 Os ratios. Samples from Hong Kong show relatively high Pt/Rh ratios. Positive correlations between Pt and Ru, and Pt and Ir were found in Shenzhen and Hong Kong, but only positive correlations between Pt and Ir were found in Guangzhou. These different characteristics reflect different automobile catalytic systems used in Hong Kong and mainland China.

show abstract

Section: Introductionmentioning

confidence: 99%

The characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: a case study in the Pearl River Delta region, South China

Zhou

Zhao

et al. 2010

Environ Earth Sci

View full text Add to dashboard Cite

show abstract

“…In Australia, surface sediments sampled from wetlands that receive runoff from major roads contained 9.0-103.8 ppb Pt, 1.5-17.2 ppb Rh and 5.4-61.2 ppb Pd. Although concentrations varied between sampling sites, the ratio of these metals in wetland sediments at any given site closely approximated the ratio used in catalytic converters (Whiteley and Murray 2005). River water samples collected in South Africa revealed Pt and Pd concentrations as high as 10.4 and 3.2 ppb, respectively (Odiyo et al 2005).…”

Section: Introductionmentioning

confidence: 87%

“…The 0.05 and 0.1 ppm Pt treatments were applied to determine how nutrient availability would be affected for plants growing in heavily contaminated sites. Roadside soil concentrations of Pt as high as 0.33 ppm have been discovered in very high traffic areas and concentrations between 0.05 and 0.1 ppm Pt have been measured in several different river sediments that receive runoff from major roads (Ravindra et al 2004;Whiteley and Murray 2005). The additional 1 and 5 ppm Pt treatments were used to determine whether possible interferences with uptake of essential minerals is proportional to the Pt concentration in solution.…”

Section: E Canadensis (Submerged Model)mentioning

confidence: 99%

Interactions between Essential Nutrients with Platinum Group Metals in Submerged Aquatic and Emergent Plants

Diehl

Gagnon

2007

Water Air Soil Pollut

View full text Add to dashboard Cite

Increasing environmental concentrations of platinum group metals (PGMs), in particular platinum (Pt), rhodium (Rh) and palladium (Pd), from catalytic converters has been reported worldwide. The impact of these three metals on the uptake and use of essential mineral nutrients was examined using two plant models: the submerged aquatic plant, Elodea canadensis, and the terrestrial emergent plant, Peltandra virginica. Plants were grown for 2 weeks in nutrient solutions with either Pt 4+ at concentrations between 0.05 and 5 mg/L, or a 0.1 mg/L Pt 4+ , Rh 3+ , Pd 2+ mixture. Some treatments received additional Ca 2+ , Zn 2+ , or humic acid (with varying pH) to study how these conditions affected PGM uptake. Metal concentration analyses were conducted using a graphite furnace atomic absorption spectrometer (GFAAS) or an inductively coupled plasma emission spectrometer (ICP). Growth response was assessed through total chlorophyll content. There was significant Pt accumulation in plant tissues, from 55 to 326 times the concentration in nutrient solution. At pH 8, the addition of humic acid doubled Pt accumulation in comparison to the control. Additional exogenous minerals did not significantly affect PGM uptake, nor did the uptake of PGMs interfere with the uptake of Ca, Fe or Cu. Synthesis of chlorophyll in new shoots was not affected by Pt accumulation; however, visible chlorosis was observed in older shoots at 5 ppm Pt. Roadside Daucus carota samples from four heavy traffic locations in Dutchess County (New York) were also assessed for PGM content. Pt, Pd and Rh concentrations averaged 14.6, 10.2, and 0.7 μg/g, respectively.

show abstract

“…This is due to the unavoidable discharge of PGM containing particulate matter mobilized by vibrations and material stresses mainly caused by the fast streaming exhaust gases leaving car engines after fuel combustion. Especially high concentrations are found near busy roads (Rauch et al 2005;Whiteley and Murry 2005;Zereini et al 2007;Jackson et al 2007) and in other urban environments where PGM concentrations have reached a level that has let scientists and engineers think about possibilities to recycle these precious metals e.g. from road dust or solid residues of the street drainage system.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Monitoring of Palladium and Platinum Contents in Road Dust of the City of Munich, Germany

Sievers

Schuster

2014

Environmental Science and Engineering

View full text Add to dashboard Cite

The concentration of platinum group metals (PGM), namely palladium, platinum and rhodium, has increased in all earth spheres, which is mainly due to the worldwide use of automotive catalytic converters containing these metals as active components. Especially high concentrations are therefore found near busy roads and in urban environments where PGM concentrations now have reached a level that has let scientists and engineers think about possibilities to recycle these precious metals in the context of urban mining strategies.

show abstract

Autocatalyst-derived platinum, palladium and rhodium (PGE) in infiltration basin and wetland sediments receiving urban runoff

Cited by 48 publications

References 21 publications

The characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: a case study in the Pearl River Delta region, South China

The characteristics of automobile catalyst-derived platinum group elements in road dusts and roadside soils: a case study in the Pearl River Delta region, South China

Interactions between Essential Nutrients with Platinum Group Metals in Submerged Aquatic and Emergent Plants

Long-Term Monitoring of Palladium and Platinum Contents in Road Dust of the City of Munich, Germany

Contact Info

Product

Resources

About