Heavy metal concentrations in freshwater macrophytes from the Aldomirovsko swamp in the Sofia District, Bulgaria

Yurukova, Lilyana; Kochev, K.

doi:10.1007/bf00194153

Cited by 16 publications

(6 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In most of the cases heavy metal content of the sediment sample was in the ascending order of Hg<Cd<Cu<Mn<Pb. This is in agreement with many studies for example Yurukova and Kochev (1994), Van den Berg et al (1998). Mean concentrations of elements in sediments and plant roots from all the sampling points are presented in Table 7.…”

Section: Metal Concentrations In Sedimentsupporting

confidence: 92%

Concentrations of heavy metals and aquatic macrophytes of Govind Ballabh Pant Sagar an anthropogenic lake affected by coal mining effluent

Mishra

Upadhyay

Pandey

et al. 2007

Environ Monit Assess

View full text Add to dashboard Cite

Five heavy metals Cu, Cd, Mn, Pb and Hg were found in high concentration from three sampling sites located in Asia's largest anthropogenic lake Govind Ballabh Pant GBP Sagar. Concentrations of these heavy metals were measured in Water, bottom sediment and in different parts of the aquatic macrophytes collected from the reservoir. Plants collected from the lake were Eichhornia crassipes, Azolla pinnata, Lemna minor, Spirodela polyrrhiza, Potamogeton pectinatus, Marsilea quadrifolia, Pistia stratiotes, Ipomea aquqtica, Potamogeton crispus, Hydrilla verticillata and Aponogeton natans. These plants have shown the high concentrations of Cu, Cd, Mn, Pb and Hg in their different parts due to bioaccumulation. In general plant roots exhibited higher concentrations of heavy metals than corresponding sediments. A comparison between different morphological tissues of the sampled plants revealed the metal concentration in following order roots > leaves. Analyses of bottom sediment indicated the higher concentrations of Cd, Mn, Cu and Pb. Strong positive correlations were obtained between the metals in water and in plants as well as between metal in sediment and in plants. Indicating the potential of these plants for pollution monitoring of these metals.

show abstract

Section: Metal Concentrations In Sedimentsupporting

confidence: 92%

Concentrations of heavy metals and aquatic macrophytes of Govind Ballabh Pant Sagar an anthropogenic lake affected by coal mining effluent

Mishra

Upadhyay

Pandey

et al. 2007

Environ Monit Assess

View full text Add to dashboard Cite

show abstract

“…Our study showed that the emergent plants accumulated lower amounts of metals than submerged and floating aquatic vegetation. This is consistent with previous observations (Albers and Camardese, 1993;Yurukova and Kochev, 1994;Rai et al, 1995). In order to determine whether significant bioaccumulation occurred in the Caohai vegetations, it is necessary to compare our data with those of previous studies.…”

Section: Metal Accumulations In Plantssupporting

confidence: 89%

Heavy metals in an impacted wetland system: A typical case from southwestern China

Feng

Yang

et al. 2007

Science of The Total Environment

View full text Add to dashboard Cite

Historical zinc smelting in Hezhang, southwestern China, has resulted in significant heavy metal contamination of the surrounding ecosystems. The Caohai wetland system, which is an important national nature reserve close to the Hezhang zinc smelting area, was investigated in the present study. Results showed that sediments from the Caohai wetland system have been seriously contaminated by Cd, Pb and Zn with the highest concentrations in the surface sediments being up to 71, 160 and 1,200 microg g(-1), respectively. The heavy metals in the sediments were strongly associated with the organic/sulphide and residual fractions. A more oxidized condition induced by aquatic plants tended to cause the Cd, Pb and Zn bound to the Fe-Mn oxide fraction to become more dominant. Pb isotopic compositions in the sediments indicated that the inventories of Pb in the Caohai wetland sediments were mainly derived from the historical zinc smelting in the Hezhang area, although other anthropogenic sources, such as the gasoline Pb, also made a substantial contribution to the Pb in the sediments. Heavy metal contamination in aquatic plants was also studied and the results indicated that heavy metals accumulated by plants may pose a potential threat to the higher trophic-level organisms, including humans.

show abstract

“…According to Albers and Camardese [ 54 ], submerged species generally accumulate relatively higher concentrations of the heavy metals copper, zinc, and cadmium, as compared to emerged species ( Figure 5 ). According to Yurukova’s study [ 55 ], this is probably because some emerged plants’ roots degrade or disappear, such as Ceratophyllum demersum L., which do not have roots but develop modified leaves with a root like appearance, and because their waxy coat inhibits absorption by epidermal cells. The enrichment mechanism may also be related to the surface area of the plant exposed to water, in that a higher surface area: volume ratio would enable higher uptake of heavy metals [ 47 ].…”

Section: Resultsmentioning

confidence: 99%

Meta-Analysis of the Copper, Zinc, and Cadmium Absorption Capacities of Aquatic Plants in Heavy Metal-Polluted Water

Luan

2015

IJERPH

View full text Add to dashboard Cite

The use of aquatic plants for phytoremediation is an important method for restoring polluted ecosystems. We sought to analyze the capacity of different aquatic plant species to absorb heavy metals and to summarize available relevant scientific data on this topic. We present a meta-analysis of Cu, Zn, and Cd absorption capacities of aquatic plants to provide a scientific basis for the selection of aquatic plants suitable for remediation of heavy-metal pollution. Plants from the Gramineae, Pontederiaceae, Ceratophyllaceae, Typhaceae and Haloragaceae showed relatively strong abilities to absorb these metals. The ability of a particular plant species to absorb a given metal was strongly correlated with its ability to absorb the other metals. However, the absorption abilities varied with the plant organ, with the following trend: roots > stems > leaves. The pH of the water and the life habits of aquatic plants (submerged and emerged) also affect the plant’s ability to absorb elements. Acidic water aids the uptake of heavy metals by plants. The correlation observed between element concentrations in plants with different aquatic life habits suggested that the enrichment mechanism is related to the surface area of the plant exposed to water. We argue that this meta-analysis would aid the selection of aquatic plants suitable for heavy-metal absorption from polluted waters.

show abstract

Heavy metal concentrations in freshwater macrophytes from the Aldomirovsko swamp in the Sofia District, Bulgaria

Cited by 16 publications

References 6 publications

Concentrations of heavy metals and aquatic macrophytes of Govind Ballabh Pant Sagar an anthropogenic lake affected by coal mining effluent

Concentrations of heavy metals and aquatic macrophytes of Govind Ballabh Pant Sagar an anthropogenic lake affected by coal mining effluent

Heavy metals in an impacted wetland system: A typical case from southwestern China

Meta-Analysis of the Copper, Zinc, and Cadmium Absorption Capacities of Aquatic Plants in Heavy Metal-Polluted Water

Contact Info

Product

Resources

About