The use of bio-energy crops (Zea mays) for ‘phytoattenuation’ of heavy metals on moderately contaminated soils: A field experiment

Meers, Erik; Slycken, Stijn Van; Adriaensen, Kristin; Ruttens, Ann; Vangronsveld, Jaco; Laing, Gijs Du; Witters, Nele; Thewys, Theo; Tack, Filip

doi:10.1016/j.chemosphere.2009.08.015

Cited by 239 publications

(130 citation statements)

References 17 publications

Supporting

Mentioning

114

Contrasting

Unclassified

Order By: Relevance

“…It is especially important in phytostabilisation practices that the plant species used actually exhibit low concentrations of toxic elements in shoots so as to exclude the possibility of entry into the food chain. According to the data presented here, the concentration of Pb, Zn and As in shoots of all plant species examined exceeded the amounts usually considered as suitable for animal food (Meers et al 2010). Although such concentrations are common on industrial areas, we should still try to select species containing as little metals as possible.…”

Section: +mentioning

confidence: 99%

Metal uptake by xerothermic plants introduced into Zn-Pb industrial wastes

et al. 2010

View full text Add to dashboard Cite

The dusty surfaces of post-flotation wastes contain high concentrations of toxic compounds and spread widely if appropriate vegetation is not introduced. It has been previously established that effective restoration of such waste areas are best met by xerothermic, mycorrhiza-assisted plants (Turnau et al. Plant and Soil 305:267-280, 2008). The aim of the current study was to improve phytostabilisation practices by gaining insight into the elements uptake in plants after their change of habitat. Total Reflection X-ray Fluorescence (TXRF) was employed to evaluate element concentration in the leaves of 23 plant species growing in the wild and on Zn-Pb waste. Higher levels of heavy metals (Zn, Y, As, Pb, Cu) in plants from tailings were usually accompanied by increased Ca concentration, suggesting a possible role of this element in detoxification mechanisms. Also, when compared to grassland specimens, plants from the tailings, exhibited potassium-deficiency. Thus, K-supplementation of the waste substrata should be considered to improve plant growth. Among all the introduced plants, three grass species (Melica transsilvanica, Bromus inermis, Elymus hispidus) and one legume (Anthylis vulneraria) were the most suitable for phytostabilisation. Heavy metal-accumulating properties of Verbascum thapsus need further investigation.

show abstract

Section: +mentioning

confidence: 99%

Metal uptake by xerothermic plants introduced into Zn-Pb industrial wastes

et al. 2010

View full text Add to dashboard Cite

show abstract

“…BASOL (Base de données sur les sites et sols pollués), an inventory of polluted sites calling for action by the authorities, reported about 4300 polluted sites in France. The Campine area (700 km 2 ) in the Netherlands and Belgium is contaminated by atmospheric deposition of Pb, Zn and Cd (Meers et al, 2010). In Germany, soil pollution by high levels of heavy metal(loid) contamination has taken out of food production about 10,000 ha of agricultural land (Lewandowski et al, 2006).…”

Section: Heavy Metal(loid)s Soil Pollution: a Global Dilemmamentioning

confidence: 99%

A comparison of technologies for remediation of heavy metal contaminated soils

Khalid

Shahid

Niazi

et al. 2017

Journal of Geochemical Exploration

1,014

349

View full text Add to dashboard Cite

, et al.. A comparison of technologies for remediation of heavy metal contaminated soils. Journal of Geochemical Exploration, Elsevier, 2016Elsevier, , 182, pp.247 -268. 10.1016Elsevier, /j.gexplo.2016 Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr a b s t r a c tSoil contamination with persistent and potentially (eco)toxic heavy metal(loid)s is ubiquitous around the globe. Concentration of these heavy metal(loid)s in soil has increased drastically over the last three decades, thus posing risk to the environment and human health. Some technologies have long been in use to remediate the hazardous heavy metal(loid)s. Conventional remediation methods for heavy metal(loid)s are generally based on physical, chemical and biological approaches, which may be used in combination with one another to clean-up heavy metal(loid) contaminated soils to an acceptable and safe level. This review summarizes the soil contamination by heavy metal(loid)s at a global scale, accumulation of heavy metal(loid)s in vegetables to toxic levels and their regulatory guidelines in soil. In this review, we also elucidate and compare the pool of available technologies that are currently being applied for remediation of heavy metal(loid) contaminated soils, as well as the economic aspect of soil remediation for different techniques. This review article includes an assessment of the contemporary status of technology deployment and recommendations for future remediation research. Finally, the molecular and genetic basis of heavy metal(loid) (hyper)accumulation and tolerance in microbes and plants is also discussed. It is proposed that for effective and economic remediation of soil, a better understanding of remediation procedures and the various options available at the different stages of remediation is highly necessary.

show abstract

“…Detailed studies indicate that heavy metals have effects on chlorophyll content in plants. Heavy metals are known to interfere with chlorophyll synthesis either through direct inhibition of an enzymatic step or by inducing deficiency of an essential nutrient (van Assche and Clíjsters, 1990;Meers et al, 2010). The amount of chlorophyll was reduced in Triticum aestivum cv.…”

Section: Introductionmentioning

confidence: 99%