On the Sampling of Vascular Plants for Monitoring of Heavy Metal Pollution

Djingova, R.; Kuleff, I.

doi:10.1002/9783527615872.ch21

Cited by 20 publications

(22 citation statements)

References 54 publications

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“…Plant material in the acid mix was heated to approximately 100°C in 50-mL acidcleaned, glass Erlenmeyer flasks until reflux of the H 2 SO 4 and then set aside to cool. Digested plant material in each flask was then diluted appropriately using 5% HNO 3 , filtered through Whatman #2 filter paper, and analyzed for Cs and Ti using ICP-MS. Berrow (1988), Hall (1995), and Djingova and Kuleff (1994) claim Ti is a good indicator of soil contamination because of high Ti concentration in soil relative to plant tissue. Inattentiveness to soil contamination can lead to spurious conclusions regarding plant uptake of soil-borne metals as cautioned recently by Faucon et al (2007) regarding several south central African species touted as copper and/or cobalt hyperaccumulators.…”

Section: Chemical Analysesmentioning

confidence: 96%

Evaluation of four grasses for use in phytoremediation of Cs-contaminated arid land soil

2009

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We used greenhouse experiments to evaluate cesium (Cs) uptake by four grasses, Agropyron spicatum (Pursh) Scribn & Smith, Leymus cinereus Scribn & Merr., Agropyron cristatum (L.) Gaertn. and Bromus tectorum L., to determine their potential as phytoremediation agents for Cs-contaminated soils. These four species grow well in the Intermountain region of western North America primarily on moderately coarse to coarsely textured soils where annual precipitation ranges from 20 to 50 cm. Whereas A. cristatum and B. tectorum are introduced species from Asia and the Mediterranean region of Europe, respectively, A. spicatum and L. cinereus are native to the Great Plains and Intermountain regions of North America. Plants were grown under two treatments each of: (1) soil Cs (ambient and 50 mg kg −1 + ambient), (2) soil fertility (ambient and ambient + 40 mg N kg −1 and 60 mg P kg −1 ), and 3) soil moisture (35% and 70% water holding capacity of the potted soils). Shoot Cs concentration in high soil Cs treatments was approximately ten times greater than in low soil Cs treatments. Even though shoot Cs concentrations tended to be lower in high soil Cs-high fertility-high soil moisture treatments than in high soil Cs-ambient fertility-low soil moisture treatments, total Cs uptake was greater because shoot biomass was approximately ten-fold greater. Shoots did not show signs of Cs toxicity in the high soil Cs treatments. We concluded, however, based on the low transfer factors (∼1.0) for all these grasses, that none were strong candidates as phytoremediation agents for Cs-contaminated soils.

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Section: Chemical Analysesmentioning

confidence: 96%

Evaluation of four grasses for use in phytoremediation of Cs-contaminated arid land soil

2009

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“…Caçador et al (2000) observed more heavy metal accumulation in Spartina maritima and Halimione portulacoides in summer. Djingova and Kuleff (1994) established that the developmental stage was the most significant explanatory factor for heavy metal accumulation in shoots. The developmental stage may be the stage of maximum biomass production.…”

Section: Metal Concentrations and Uptake In Plantsmentioning

confidence: 98%

Rhizosphere Influence and Seasonal Impact on Phytostabilisation of Metals—A Field Study

Padmavathiamma

2011

Water Air Soil Pollut

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Field experiments were conducted to assess the influence of plant growth and amendment addition on phytostabilisation of copper (Cu), lead (Pb), manganese (Mn) and zinc (Zn) along highway soil in southwest British Columbia, Canada. The plant species tested were Lolium perenne L (perennial rye grass), Festuca rubra L. (creeping red fescue) and Poa pratensis L. (Kentucky blue grass) and the amendments, lime and phosphate. The treatment efficiencies were assessed during different seasons as a completely randomized factorial experiment in split plot design. The research tasks involved: (1) quantifying the seasonal extent of metal accumulation in soil and assessing the seasonal impact on metal speciation for different soil amendments and plant species; (2) determining seasonal accumulation differences between sampling periods in plant parts; and (3) assessing the influence of root-soil interactions on metal dynamics. The amendments decreased the exchangeable fraction and plant uptake of all four metals. The lowest mobile fractions (exchangeable and carbonate bound) were found in soils growing Festuca for Cu, Lolium for Mn and a Lolium/Poa/ Festuca combination for Pb and Zn. Metal accumulation and metal dynamics in the rhizosphere soil are compared with those of the bulk soil. The final outcome was the development of a remediation strategy for all four metals involving suitable plants and amendments and incorporating seasonal and rhizosphere influences.

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“…Such variations have been yet demonstrated on many species as grazing plants, Arrhenatherum elatius, Fagus sylvatica (Hagemeyer and Schäfer 1995;Brekken and Steinnes 2004;Deram et al 2006). Djingova and Kuleff (1994) reported that these changes are species-and/ or element-dependent and each case must be studied separately. In deciduous trees, shrubs, and grasses, metal concentrations reach a maximum in autumn and a minimum during spring (Kim and Fergusson 1994;Brekken and Steinnes 2004;Deram et al 2006).…”

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confidence: 97%

Seasonal and annual variations of metal uptake, bioaccumulation, and toxicity in Trifolium repens and Lolium perenne growing in a heavy metal-contaminated field

Bidar

Pruvot

Garçon

et al. 2008

Environ Sci Pollut Res

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In this work, the behavior of plant species grown in metal-polluted soil has been studied during 2 years. Obviously, this time is too short to ensure that metals remain accumulated in the root system and few are transferred in aerial parts over the time. It is why regular monitoring should be achieved during more than a decade after the settlement of the plant cover. This work will be completed by the study of the T. repens and L. perenne effects on mobility of metals in order to evaluate the quantities of pollutants which could be absorbed by the biota and transferred to groundwater. Bioaccessibility tests could be also realized on polluted soils in order to evaluate the phytostabilization impacts on the exposition risks for humans.

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On the Sampling of Vascular Plants for Monitoring of Heavy Metal Pollution

Cited by 20 publications

References 54 publications

Evaluation of four grasses for use in phytoremediation of Cs-contaminated arid land soil

Evaluation of four grasses for use in phytoremediation of Cs-contaminated arid land soil

Rhizosphere Influence and Seasonal Impact on Phytostabilisation of Metals—A Field Study

Seasonal and annual variations of metal uptake, bioaccumulation, and toxicity in Trifolium repens and Lolium perenne growing in a heavy metal-contaminated field

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